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Are 68 Molecules Enough To Understand Diseases?

Roland Piquepaille writes "A researcher from the University of California at San Diego (UCSD) claims that 68 molecules can explain the origins of many serious diseases. After reviewing findings from multiple disciplines, he 'realized that only 68 molecular building blocks are used to construct these four fundamental components of cells: the nucleic acids (DNA and RNA), proteins, glycans and lipids,' and he said that 'these 68 building blocks provide the structural basis for the molecular choreography that constitutes the entire life of a cell.'"

133 comments

  1. Overkill by Tubal-Cain · · Score: 5, Funny

    You should only need 42.

    1. Re:Overkill by Anonymous Coward · · Score: 0

      That is the coolest yet most subtle Hitchhikers Guide to the Galaxy reference I have ever heard. BRAVO!

    2. Re:Overkill by FoamingToad · · Score: 1

      It's a joke in base 16.5

  2. How many were you expecting? by XanC · · Score: 1

    Doesn't seem like that low a number. What's the big deal?

    1. Re:How many were you expecting? by jellomizer · · Score: 4, Insightful

      And wow most of those Molecules are made up of Carbon. Without Carbon we will have no Diseases.
      Sometimes going to deep in the problem causes you to overlook the obvious. For most Diseases it is about understanding how the elements function more then what they are made up of. (Sometimes knowing what they are made up help understand their function, but not always it depends on how they are arranged, just as DNA has the same molecules from one life form to an other their effect on the environment depending on their arrangement varies.

      --
      If something is so important that you feel the need to post it on the internet... It probably isn't that important.
    2. Re:How many were you expecting? by Kingrames · · Score: 4, Funny

      This just in: Carbon-based vulnerability discovered in Carbon-based lifeforms.

      --
      If you can read this, I forgot to post anonymously.
    3. Re:How many were you expecting? by snoyberg · · Score: 1

      Don't worry, Apple said that they were deprecating Carbon, so Apple Fanbois are safe.

      --
      Thank God for evolution.
    4. Re:How many were you expecting? by gnick · · Score: 3, Funny

      Solution:
      Ban carbon compounds.

      Sure, it means losing one element and we'd have to give up a few things - I'm not saying we wouldn't get our hair mussed. But picture it - A world without disease. So which is better - A world with carbon compounds and rampant disease or a world where we give up carbon compounds and rid the planet of all disease? You decide.

      =P

      --
      He's getting rather old, but he's a good mouse.
    5. Re:How many were you expecting? by gnick · · Score: 3, Funny

      Sorry for the self-reply, but I just realized the flaw in my logic and realized why my 'Ban carbon compounds' proposal won't fly...

      There are carbon compounds in oil - No way the lobbyists are letting us get that through Washington... Oh well, I can dream.

      --
      He's getting rather old, but he's a good mouse.
    6. Re:How many were you expecting? by Daimanta · · Score: 1

      "Ban carbon compounds."

      Better yet, decarbonize humans.

      Humans are 80% water anyway and carbs are bad for your figure. I mean, what could possibly go wrong?

      --
      Knowledge is power. Knowledge shared is power lost.
    7. Re:How many were you expecting? by dougmc · · Score: 1
    8. Re:How many were you expecting? by zunicron · · Score: 0, Redundant

      And wow most of those Molecules are made up of Carbon. Without Carbon we will have no Diseases.

      And no life.

    9. Re:How many were you expecting? by Stooshie · · Score: 1

      It is useful in the same way the periodic table is useful. Of itself, it didn't create new compounds but it became the basis of understanding chemistry and allowing people to create new compounds.

      --
      America, Home of the Brave. ... .and the Squaw.
    10. Re:How many were you expecting? by Anonymous Coward · · Score: 0

      As a carbon based life form, I have a fundamental problem with eliminating all carbon compounds but feel free to do it to yourself.

  3. reductionism by Anonymous Coward · · Score: 2, Insightful

    Highly speculative and reductionistic. Just because you can reduce things down to a lower level of complexity, it doesn't mean that this reduced set of molecules explain everything life related.

    Well I guess it's a step up from the widespread public perception that DNA determines everything.

    1. Re:reductionism by philspear · · Score: 3, Funny

      Nonsense.

      On a completely unrelated note, I've made an illustration with 5 essential parts of all buildings: nails, screws, wood, cement, and support beams. These 5 building blocks provide the structural basis for the architectural choreography that constitutes the entire structure of a building. These construction components may now hold the keys to uncovering the origins of many grievous architectural problems that continue to evade understanding.

    2. Re:reductionism by Stooshie · · Score: 0

      Yeh, cause the periodic table wasn't useful. We shoulda just scrapped that reductionistic nonsense.

      Of course reducing things to a lower level, in itself, doesn't help, but the great thing here is being able to look at molecular biology in a different way. (OK, it may have been implicitly known, but no-one explicitly stated it so clearly).

      It is now explicitly stated that there are only 68 molecules that play any major part in life. That's a massive step forward.

      Scientists can now concentrate on these 68 molecules when tackling disease. Hey, each one can be 68 different fields of molecular biology.

      I remember my biochem classes. Just for giggles, the lecturer brought out this massive diagram (A1 sheet, I think) with all the human cellular chemical reactions known at the time. All in very tiny writing. This work doesn't change that (there are still about 2,300 separate interactions between 68 molecules), but at least everything is classified, and can be studied systematically.

      --
      America, Home of the Brave. ... .and the Squaw.
    3. Re:reductionism by galoise · · Score: 1

      until we find a bacteria that has a 69th molecule in its chemical composition, and then its all over again.

      Actually, by having a delimited taxonomy we might overlook some critical aspect related to this hypothetical 69th molecule, etc etc.

      This is a classic problem in epistemology. Taxonomies are of no worth if they do not produce a cognitive change unavailable without the formulation of the taxonomy. Limiting the number of elements in a set is not in itself a great leap forward for science, unless you can explain and draw conclussions and new insights out of this limit, like, i don't know, "this 68 mols are the only possible theoretical configurations of x, y and z because of a, b and c", instead of "this 68 molecules are persistent in all observations, until now".

      The first proposition is a theoretically relevant observation, that just happens to determine a taxonomy. The second one is just a taxonomy that might or might not be useful. In itself, it is only useful until it is proven wrong, and taxonomy and categories that define limited sets of entities are the easiest hypothesis to falsify.

      In other words: absurd reductionism, not worthy of more reaction than a mildly amused "meh, too bad they were not 42".

      (incidentally, 68 elements for a taxonomy is pretty shitty taxonomy. The set of possible 5 -pulled out of my ass, IANAMB- mol sequences with that number of elements is 2,0667E+94, a number that is larger than the number of atoms in the whole universe)

      --
      entia non sunt multiplicanda praeter necessitatem
    4. Re:reductionism by Anonymous Coward · · Score: 0

      Hmm! If one takes the 8 groups that make life or the 68 molecules
      and do some hocus pocus math (stats or combinations) how many
      combinations is it possible that one has to search through to
      explain life. 2**68 is alot of life. Most could be non-starters
      but since we are the top life form, then somewhere in the middle,
      or beginning or the end of the combinations is where we are at.
      Thus all other life forms could revolve around us in this pea soup.
      If we are at the beginning of the combinations sequence, the aliens
      must be the other two: the middle or the end of the combination sequence.
      It could be that if they are at the end, that those in the middle are a
      mixture of the beginning and the end (that is humans and alien mixture
      crossbread). Maybe it could be some lower or higher form of life that we
      don't know about yet or none at all.

    5. Re:reductionism by Stooshie · · Score: 0

      ... this 68 molecules are persistent in all observations, until now ...

      Erm... is that not how the periodic table works?

      ... incidentally, 68 elements for a taxonomy is pretty shitty taxonomy. The set of possible 5 -pulled out of my ass, IANAMB- mol sequences with that number of elements is 2,0667E+94, a number that is larger than the number of atoms in the whole universe ...

      As a working taxonomy it's pretty darn good to start. It allows scientists to at least study things systematically. And, if another molecule is found, then it's another molecule and, hey another 68 reactions to add.

      Anyway these are purely the molecules important in disease. I assume this is in humans. If this covers disease in all life, then I am even more impressed.

      --
      America, Home of the Brave. ... .and the Squaw.
    6. Re:reductionism by galoise · · Score: 1

      Erm... is that not how the periodic table works?

      well, no. the whole point of my post was that a taxonomy that does not contribute with an explanatory insight is little more than a list. the periodic tables has, well, periods. Numbers and characteristics of the elements contained that determine their possition in the table. It's much more valuable than a simple list of elements. Other scientific taxonomies share this same aspect, like the Scientific Classification, where the mere name of an entity determines its similarities with other entities in its same specie/family/genus, etc.

      If it does not give new explanatory insights, then, if anything, it's a descriptive typology, and in this case 68 elements is too many elements to provide a really important breakthrough in our understanding of the processes involved, since lacking an explanatory insight we have little options to predict and forbade some relations and determine their importance, and are left only with its combinatorial possibilities (or whatever, again, i am not a molecular biologist). Descriptive typologies are very useful, however, if the number of elements is small, and they provide a new classification that gives some insight into the natural similarities and differences between different entities, or if they are able to sustain new phenomena by incorporation of the new entities into some of the categories contained in the typology.

      Determining (provisionally) a list of 68 molecules involved in some process is of little worth, if this determination does not shed some light into why these particular 68, if it is theoretically possible tht a 69th molecule exists, and other critical questions.

      It's interesting, though. Curious, probably. not much more.

      --
      entia non sunt multiplicanda praeter necessitatem
  4. Obligatory. by MindlessAutomata · · Score: 0, Redundant

    68 should be enough for anyone.

    1. Re:Obligatory. by krgallagher · · Score: 4, Funny
      "68 should be enough for anyone."

      When he tried for 69, he blew it.

      --

      Insert Generic Sig Here:

    2. Re:Obligatory. by i.r.id10t · · Score: 1

      But it returned the favor (and flavor?) at least...

      --
      Don't blame me, I voted for Kodos
    3. Re:Obligatory. by Anonymous Coward · · Score: 0

      When he tried for 69, he blew it.

      Different Bill.

    4. Re:Obligatory. by anotherzeb · · Score: 1

      When he tried for 69, he blew it.

      Yes, but he got blown right back, so he wasn't complaining

      --
      Good luck sometimes arrives disguised as bad
    5. Re:Obligatory. by cpricejones · · Score: 1

      I didn't see selenocysteine ... that makes 69

  5. So..... by RollinDutchMasters · · Score: 3, Insightful

    He's just discovered something that's in every first-year biochemistry textbook that's been published for the last 30 years?

    I love when 'cutting-edge research' is actually old information with a pretty new graph/picture/powerpoint slide/animation/etc.

    1. Re:So..... by gnick · · Score: 3, Informative

      You have to admit, it is an awfully pretty picture: http://ucsdnews.ucsd.edu/graphics/images/2008/09-08MolecularBuildingBlocksBIG.jpg

      And I thought the write-up was fine. TFS focused on the '68 molecules' thing, which is nothing new. TFA just mentions that his research includes the illustration, but the thrust seems to be encouraging a focus on lipid and glycan research for disease control and steering away from our current tunnel vision of genetic research. Seems like a reasonable and interesting opinion considering that the lion's share of funding is going to the genetic researchers.

      --
      He's getting rather old, but he's a good mouse.
  6. Are 2 Bits Enough To Understand Computers? by Anonymous Coward · · Score: 5, Funny

    An AC on Slashdot claims that 2 bits can explain the origins of many serious computer viruses. After reviewing findings from multiple hosts, he 'realized that only 2 bits are used to construct these four fundamental components of computers: the processor (x86 and x86_64), memory, storage and network tubes,' and he said that 'these 2 building blocks provide the structural basis for the bitwise choreography that constitutes the entire life of a computer.

    1. Re:Are 2 Bits Enough To Understand Computers? by Ethanol-fueled · · Score: 4, Funny

      I've had enough of ACs' two-bit advice. Here's a quarter -- go call somebody who gives a shit.

      Nah, just kidding man. Mod parent insightful.

    2. Re:Are 2 Bits Enough To Understand Computers? by Anonymous Coward · · Score: 0

      I'd like to point out that "x86_64" looks like a face wearing huge goggles.

    3. Re:Are 2 Bits Enough To Understand Computers? by Anonymous Coward · · Score: 0

      ... and an earpiece

    4. Re:Are 2 Bits Enough To Understand Computers? by rakslice · · Score: 1

      LMAO. Good work,

    5. Re:Are 2 Bits Enough To Understand Computers? by tsa · · Score: 1

      One of my housemates once ssaid about our weirdest housemate: "If you give him a quarter and tell him to call all his friends, he will still have money left when he's done."

      --

      -- Cheers!

  7. Only 68? Piece of cake! by A+nonymous+Coward · · Score: 2, Insightful

    Of course, two of those 68 molecules are RNA and DNA. The other 66 should be cake for anyone who understands either one of them.

  8. Well you know what JayZ says by jayhawk88 · · Score: 1

    I got 68 molecules but a glycan ain't one of 'em.

  9. even better by speedtux · · Score: 1

    Even better, all you need to understand why your computer doesn't boot is the 37 fundamental building blocks of computers, roughly divided into the plastics (acrylic, etc.), liquid crystals, metals (steel, iron, copper, silver, etc.), and silicon.

    Now, go fix that BSOD.

    1. Re:even better by g-san · · Score: 1

      well it might blow you away to find out that everything your cpu does is load, store, add, subtract, branch and some bitwise operators.

  10. Obvious and boring by Cougem · · Score: 5, Insightful

    How did this make slashdot? I have so many complaints with this

    1. It's obvious - since these are the only components in cells, and they have all been known for years, how is this remotely interesting?

    2. It's not really relevant - It's like me saying "100 elements are enough to understand disease" - yes, all biological processes may only involve 100, probably fewer, elements, but how the hell does that aid our understanding? It's the identities and actions of the resulting molecules and macromolecular complexes, not their components, which define their actions

    3. If we're going to be anal it is far fewer molecules - The 4 bases of DNA and the proteins involved in their replication are all we need really to understand all disease processes, for it is from this template, and the proteins which they code for, that everything comes from. These 68 are all coded for in the DNA, even the DNA itself. One may wish to be a bit more anal and include mitochondrial DNA and proteins separately, as they are a separate genome technically.

    4. This is misleading. Not all constituents in the body are made from merely these building blocks. What about hydroxyapatite? This is an incredibly common molecule in our bones, but like so many other molecules in the body, it is a relatively simple organic molecule.


    What a thoroughly boring and unenlightening piece.

    1. Re:Obvious and boring by OG · · Score: 5, Insightful

      1. It's obvious - since these are the only components in cells, and they have all been known for years, how is this remotely interesting?

      It's interesting in that this is a nice summary of information that we've known for a while that has never been presented in so succinct a format.

      2. It's not really relevant - It's like me saying "100 elements are enough to understand disease" - yes, all biological processes may only involve 100, probably fewer, elements, but how the hell does that aid our understanding? It's the identities and actions of the resulting molecules and macromolecular complexes, not their components, which define their actions

      See below.

      3. If we're going to be anal it is far fewer molecules - The 4 bases of DNA and the proteins involved in their replication are all we need really to understand all disease processes, for it is from this template, and the proteins which they code for, that everything comes from. These 68 are all coded for in the DNA, even the DNA itself. One may wish to be a bit more anal and include mitochondrial DNA and proteins separately, as they are a separate genome technically.

      You either didn't read or understand the article correctly (and I suggest reading the original article in Nature Cell Biology; it's a very quick, high-level piece. As to your point, the molecules that compose RNA and DNA are only 8 of the building blocks he lists. The 20 amino acides that compose proteins (and the amino acids themselves are not encoded by DNA) make up another subgroup. Then you have your glycans and lipids as the other two main subgroups, again not encoded by DNA.

      4. This is misleading. Not all constituents in the body are made from merely these building blocks. What about hydroxyapatite? This is an incredibly common molecule in our bones, but like so many other molecules in the body, it is a relatively simple organic molecule.

      See above.

      The whole point of Marth's paper is that there has been too much focus on genes and proteins as the origins of disease, and that the research into lipids and glycans that has been conducted hasn't been integrated well enough into the genetic research.

      To that end, he put together a very nice chart listing the major constituents of a cell divided into four major groups, along with diagrams of where those molecules are found in the cell. His article is more of a commentary piece about how more integrative work needs to be done with a nice chart on how these pieces fit together. It's one I'll probably print out and hang on the wall, because I appreciate that it's simple and still conveys quite a bit of information.

    2. Re:Obvious and boring by Red+Flayer · · Score: 1
      I agree with the gist of your post (though not necessarily the tone)... but

      3. If we're going to be anal it is far fewer molecules - The 4 bases of DNA and the proteins involved in their replication are all we need really to understand all disease processes, for it is from this template, and the proteins which they code for, that everything comes from. These 68 are all coded for in the DNA, even the DNA itself. One may wish to be a bit more anal and include mitochondrial DNA and proteins separately, as they are a separate genome technically.

      You are oversimplifying... DNA is nothing without the amino acids used to synthesize proteins. And there are plenty of diseases that are dependent on dietary inputs (or lack thereof), that one could not understand with knowledge only of DNA. Never mind the glycols not expressed in the DNA.

      Say, you're not a biochemist, are you? Or a pathophysiologist? Didn't think so.

      Perhaps reading TFA could help you understand why the chart referred to is noteworthy:

      "What is important is that no one has composed it and laid it out so clearly before," said Ajit Varki, M.D., Distinguished Professor of Medicine and Cellular and Molecular Medicine and founder and co-director of the Glycobiology Research and Training Center at UC San Diego School of Medicine, and chief editor of the major textbook in the field, The Essentials of Glycobiology.

      Oh, and just to note -- hydroxyapatite is not an organic molecule, it's an inorganic ceramic. Sorry to burst your bubble, but it's clear you are unfamiliar with the topic.

      --
      "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
    3. Re:Obvious and boring by OG · · Score: 4, Informative

      Again, go back and look at the chart. He lists the 8 (not 5) nucleic acids involved in DNA and RNA:

      Deoxyadenosine
      Deoxycytidine,
      Deoxyguanosine,
      Deoxythymidine,
      Adenosine,
      Cytidine,
      Guanosine,
      Uridine

      The first four nucleosides make up DNA, the last four RNA.

    4. Re:Obvious and boring by Ambush+Commander · · Score: 1

      You sir, have not RTFA.

      You are correct that there are only 5 nitrogenous bases that make up DNA and RNA, but there are 8 nucleic acids; the 4 DNA monomers have the sugar deoxyribose, while the 4 RNA monomers have the sugar ribose.

    5. Re:Obvious and boring by RollinDutchMasters · · Score: 2, Informative

      It's interesting in that this is a nice summary of information that we've known for a while that has never been presented in so succinct a format.

      I had a table with that molecular breakdown in my biochem textbook. It was just black&white instead of colored, and it didn't look like it was made in Illustrator.

      Way to go to him for... coloring... I guess. It's still pretty 1970-y information.

    6. Re:Obvious and boring by Anonymous Coward · · Score: 0

      So, as the smart guy you are, you're going to just ignore an opinion citing an article because you can't be bothered to read the article? All because he possibly made a typo?(yes, 5 and 8 are next to each other on the numpad, give it a look!) Good for you!

    7. Re:Obvious and boring by Anonymous Coward · · Score: 3, Funny

      Well done. In a 2-line post you managed both be an ass-hole and make an ass of yourself.

      * Applause *

    8. Re:Obvious and boring by philspear · · Score: 4, Insightful

      The whole point of Marth's paper is that there has been too much focus on genes and proteins as the origins of disease, and that the research into lipids and glycans that has been conducted hasn't been integrated well enough into the genetic research.

      A large part of that is due not to researchers prefering genes and proteins over the others, but limitations in our tools for probing them. There is quite a bit of research into lipids membranes, but the field is having trouble agreeing on some of the very basic mechanisms due to technical limitations. It's much harder to replicate lipids than it is to do so for DNA or proteins. DNA sequences you can have as much as you want by tomorrow using bacteria or PCR. Proteins you can get a cell type of your choice to express it and then harvest it (this becomes more difficult with certain proteins like transmembrane ones and becomes much more difficult with protein complexes). Those come out very pure and have been exhaustively troubleshot. Lipid purification methods are less developed.

      I'm no expert in that, but it seems like a vicious cycle of no one purifies lipids because there hasn't been much work done to come up with a cheap and fast way of purifying lipids because no one purifies lipids. If anyone knows of a way to purify lipids for as cheap as you can DNA, let me know.

      Furthermore, you can manipulate DNA or proteins much easier than you can lipids. A professor was telling me once that there were only two people in the world who knew how to effectively modify lipids to do spin-spin labeling (I think that's a way of determining the orientation of two mollecules) and to buy purified modified lipids was outrageously expensive. In proteins on the other hand, it's my understanding that any grad student could make and purify protiens for spin-spin.

      And lipid biologists are having trouble with the very basics of their field as a consequence of limited tools. Lipid rafts are potentially one of the most important functions of lipids in the bilayer, but it's quite controversial as to whether they exist or not. I personally am not convinced that they do. The evidence in support seems to all be artificial examples of where they could get certain lipids to self-associate, but real-life examples have as far as I know either not been sufficiently proven or have been disproven.

      I don't mean to demean lipid biologists, that work is far above my head and it is definitely an area that is far, far underdeveloped compared to the genes and protein research that I do. My hat is off to them.

      Basically, we're focused on genes and proteins because you work with what you can. When the tools for lipid studies catch up to DNA and protein, you can expect lipids to catch up.

    9. Re:Obvious and boring by l0ungeb0y · · Score: 1

      "What about hydroxyapatite?"

      You know, now that you mention it, I have an appetite for Hydrox as well. Haven't seen them around in years though. Shame.

    10. Re:Obvious and boring by Anonymous Coward · · Score: 0

      3. If we're going to be anal it is far fewer molecules - The 4 bases of DNA and the proteins involved in their replication are all we need really to understand all disease processes, for it is from this template, and the proteins which they code for, that everything comes from. These 68 are all coded for in the DNA, even the DNA itself. One may wish to be a bit more anal and include mitochondrial DNA and proteins separately, as they are a separate genome technically.

      TFA (which you apparently didn't R) is exactly about that:

      "We have now found instances where the pathogenesis of widespread and chronic diseases can be attributed to a change in the glycome, for example, in the absence of definable changes in the genome or proteome," Marth said

      Of course the summary ignores this core statement and instead totally misrepresents the article (because Mr Piquepaille didn't R either) by suggesting these 68 molecules are "Enough To Understand Disease". Nowhere in the article is such a ridiculous claim made.

    11. Re:Obvious and boring by Goldsmith · · Score: 2, Interesting

      I completely agree with Marth's conclusion, but his letter is not insightful, he's simply registering a complaint about the rise of proteomics. It's not a research article, it's a letter to the editor. We get the same things in physics journals lamenting the rise of string theory or the decrease in funding for superconductivity.

      Marth's call for interdisciplinary research and fresh ideas is good, but he's already made a mistake by grouping the molecules together using his own judgment. It would be better to present them all to a widely varying group of scientists and ask them to group the molecules in any way they would like. The idea that there are ~100 important biological building blocks is not new. But... this is just a letter to the editor, and the poster looks good, and we get the idea. Roland should not have picked it up, and it shouldn't be here, it was probably written for a department head somewhere who doesn't want to fund a new interdisciplinary program.

    12. Re:Obvious and boring by Anonymous Coward · · Score: 0

      Good God! You're an idiot.

    13. Re:Obvious and boring by Anonymous Coward · · Score: 0

      The whole point of Marth's paper is that there has been too much focus on genes and proteins as the origins of disease, and that the research into lipids and glycans that has been conducted hasn't been integrated well enough into the genetic research.

      Aahh you see, he's a glycobiologist. And if there's one thing you learn in glycobiology, is that the protein and dna people love being blissfully unaware of the effect of glycosylation on their pet molecule/system.

    14. Re:Obvious and boring by Anonymous Coward · · Score: 3, Insightful

      This:

      The whole point of Marth's paper is that there has been too much focus on genes and proteins as the origins of disease, and that the research into lipids and glycans that has been conducted hasn't been integrated well enough into the genetic research.

      ... is intelligent, reasonable, and bears repeating.

      This:

      A researcher from the University of California at San Diego (UCSD) claims that 68 molecules can explain the origins of many serious diseases.

      ... is vapidity on the order of "Engine make car go Broom!"

      The key point of the paper is not that there are only 68 compounds which are important to understand disease, but that there are 68 basic chemical building blocks which are important to understand disease, and (here's the important bit) at this point we're really only looking at the interactions of 28 of them.

    15. Re:Obvious and boring by Anonymous Coward · · Score: 0

      Yes, good enough for nature, but not nearly good enough for slashdot...

    16. Re:Obvious and boring by Compuser · · Score: 2, Interesting

      For someone who supposedly did a lot of surveying of the field he somehow missed an important amino acid: citrulline which is very important because many proteins undergo deimination and it results in change of function. And this is just from what I caught right off the bat. Let's just say I do not think the world of this article and the "quite a bit of information" is really "way too simplistic view".

    17. Re:Obvious and boring by Anonymous Coward · · Score: 0

      Thank you - now I will check it out. A periodic table of the cell you say? Very interesting indeed.

    18. Re:Obvious and boring by Hasmanean · · Score: 2, Interesting

      >1. It's obvious - since these are the only components in cells, and they have all been known for years, how is this remotely interesting?

      The ancient Greeks and alchemists too, thought the soul was a chemical, and even today the modern pharmaceutical industry seems to think medicine should be about finding chemicals to magically give us health. Biologists are a lower form of life than hackers, they're drip-kiddies.

      It's like an analog hardware engineer I knew who didn't appreciate the complexity of software, and would say (half-jokingly) "it's all an analog voltage when you get down to it." The funny thing is, when I helped him with his software problems, the longer he tried to describe the code to me, the less I understood of it. He had a hardware engineer's mind: to him the whole program was something to be analyzed simultaneously, not as a step-by-step sequential modification of the data. I think he would have loved programming in prolog.

      --
      Hasan
    19. Re:Obvious and boring by cpricejones · · Score: 1

      There are also many nonstandard nucleic acid bases. If you take any cellular transfer RNA (tRNA), there are modifications to the different bases. Common examples are pseudouridine, dihydrouridine, inosine, methylated A and G, and there are many, many more. Lysine tRNA has a modified base in the anticodon stem (the part that the ribosome uses to match to the messenger RNA to code for proteins) that alters its specificity to make it better decode the correct message. There are dozens of examples like these which go to show how evolved the decoding process is.

    20. Re:Obvious and boring by cpricejones · · Score: 1

      You mentioned lipid rafts, and to drive the point home, I would cite a type of lipid called inositol phosphates. These lipids have 5 positions available for modification by phosphorylation. And there are 7 possible lipids that are commonly found in the cell (http://dx.doi.org/10.1016/j.tibs.2008.07.002). Separating these things apart is a nightmare ...

  11. Re:Only 68? Piece of cake! by Gat0r30y · · Score: 1

    there are 8 nucleosides. They are part of the 68 count, so really 60.

    --
    Prediction: The real iPhone killer is going to be sex robots from Japan. Think about it.
  12. woo by nomadic · · Score: 1

    And I correctly determined that 100% of diseases are caused by some combination of only 117 atomic elements. Give me my Nobel.

    1. Re:woo by pesho · · Score: 5, Funny

      117?! This is an overkill. I can boil them down to 3 subatomic particles - electron, proton and neutron. Physicists, feel free to pitch in. Lets get to the bottom of these pesky diseases.

    2. Re:woo by Anonymous Coward · · Score: 0

      It's vibrating strings, all the way down.

    3. Re:woo by Eudial · · Score: 1

      117?! This is an overkill. I can boil them down to 3 subatomic particles - electron, proton and neutron.
      Physicists, feel free to pitch in. Lets get to the bottom of these pesky diseases.

      It's icky to compare electrons to protons and neutrons. You really need to break it all down into fermions.

      What you'll end up with is Up-quarks, down-quarks and electrons (possibly positrons).

      Furthermore, to bind these together, you'll want strong, weak and electromagnetic forces. So, add to that W bosons, Z bosons and photons. Gravity is a non-issue on a subatomic level, so we don't need gravitons. Perhaps Higgs bosons if they do exist.

      But still, that's a lot fewer than 117.

      --
      GAAH! MY PRINTER IS ON FIRE!!! PUT IT OUT! PUT IT OUT!
    4. Re:woo by Anonymous Coward · · Score: 0

      ..and I can break those protons and neutrons down into Up Quarks, Down Quarks, Gluons, Photons, and Gravitons.

    5. Re:woo by LiquidHAL · · Score: 3, Funny

      Strings. Science over.

    6. Re:woo by g-san · · Score: 1

      So you imply that watching one child play with a ball would give you an understanding of international politics? You would have to be pretty blind to not see that there are several levels there, and it helps to define and delineate those levels to help understand the whole thing.

  13. summary clarification by digitalderbs · · Score: 1

    This might not be obvious to some : the study is saying that there are 68 *types* of molecules to build up cells.

    The fact that they propose a closed number -- not necessarily that it's a small or large number -- is interesting. However, I wouldn't be surprised if this number increased, as our knowledge of the biochemistry of archaea, viruses and other organisms increases. It's like saying the current status of the periodic table of known elements is finished.

  14. Electrons, Protons and Neutrons! by Anonymous Coward · · Score: 0

    Hey! Only three subatomic particles are required to make up the atoms that these molecules are made of!

    Seriously, what kind of crap is this and why is it news?

    1. Re:Electrons, Protons and Neutrons! by Arcturax · · Score: 2, Insightful

      Because Roland posted it. Seriously.

      --

      --Won't that be grand? Computers and the programs will start thinking and the people will stop. - Dr. Walter Gibbs
  15. Who submitted it? (was: Re:Obvious and boring) by siglercm · · Score: 5, Insightful

    How did this make slashdot?

    It was submitted by the Slashdot God of all Science Media, Roland Piquepaille, that's how.

    --
    sigfault (core dumped)
    1. Re:Who submitted it? (was: Re:Obvious and boring) by zullnero · · Score: 1

      Hey, at least he's not linking through his blog anymore.

    2. Re:Who submitted it? (was: Re:Obvious and boring) by Arcturax · · Score: 1

      His blog is still just a regurgitation of the articles and at times outright ripped straight from it.

      This guy is a blog spammer. He is still using /. to get more hits to his blog and to get himself a higher ranking in google. He also gets posted more often than is fair to other users. It's obvious at this point he is getting special treatment from /.

      Between this and all the other controversies in the past (Michael, mass mod bitch slaps, etc), I am starting to reconsider continuing to contribute anything to /.

      --

      --Won't that be grand? Computers and the programs will start thinking and the people will stop. - Dr. Walter Gibbs
    3. Re:Who submitted it? (was: Re:Obvious and boring) by Anonymous Coward · · Score: 2, Interesting

      the really interesting thing is that roland never gets *any* rejects, no matter how shitty his submissions.

    4. Re:Who submitted it? (was: Re:Obvious and boring) by Anonymous Coward · · Score: 0

      Are the "ohnoitsroland" tags a little like bullying? Surprises me considering many nerds would have suffered at the hands of bullies earlier in their lives.

    5. Re:Who submitted it? (was: Re:Obvious and boring) by Hal_Porter · · Score: 2, Funny

      Ever since he submitted that story about mind control and manipulation.

      --
      echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
  16. Mendeleev! by TrashGod · · Score: 2, Informative

    From TFA: "Like the periodic table of elements, first published in 1869 by Russian chemist Dmitri Mendeleev, is to chemistry, Marth's visual metaphor offers a new framework for biologists." OK, the article is thin and the work derivative, but the picture shows promise. I like any decent web-based periodic table, it just need links.

  17. Only 117 atomic elements by flaming+error · · Score: 1
    That's an ironic sort of comment. I'll bet you didn't RTFA:

    Reviewing findings from multiple disciplines, Jamey Marth, Ph.D... realized that only 68 molecular building blocks are used to construct these four fundamental components of cells: the nucleic acids (DNA and RNA), proteins, glycans and lipids...

    Like the periodic table of elements ... is to chemistry, Marth's visual metaphor offers a new framework for biologists.

    1. Re:Only 117 atomic elements by commodoresloat · · Score: 1

      That's an ironic sort of comment.

      Ironic does not mean "incorrect."

    2. Re:Only 117 atomic elements by Anonymous Coward · · Score: 0

      It is a sad life you must lead if you cannot see something as beautiful as irony without having it explained to you.

      The irony is that the original poster used the same analogy to disparage the idea as TFA used to explain the importance of the idea.

    3. Re:Only 117 atomic elements by commodoresloat · · Score: 1

      Didn't mean to be pedantic, but I don't think there's anything "sad" about paying attention to the meaning of words. But your mileage may vary.

  18. I've got 2 bits... by topham · · Score: 1

    I've got 2 bits, a 0 and 1, I can encode almost any piece of information in it. Even a 2 year old can understand 0 and 1!!!

    This stuff is easy.

    1. Re:I've got 2 bits... by bob_herrick · · Score: 4, Funny

      I've got 2 bits, a 0 and 1, I can encode almost any piece of information in it. Even a 10 year old can understand 0 and 1!!! This stuff is easy.

      Fixed it for ya!

    2. Re:I've got 2 bits... by kristoferkarlsson · · Score: 1

      I've got 10 bits, a 0 and 1, I can encode almost any piece of information in it. Even a 10 year old can understand 0 and 1!!! This stuff is easy.

      Fixed it for ya!

      You forgot one search/replace!

  19. Re:Only 68? Piece of cake! by unfasten · · Score: 1
    Actually he's saying that the 68 molecules are used to build those components, not that they're part of the 68 molecules:

    he 'realized that only 68 molecular building blocks are used to construct these four fundamental components of cells: the nucleic acids (DNA and RNA), proteins, glycans and lipids,'

  20. 100100111100011000111000 by theverylastperson · · Score: 1

    I can go even further and break it all down to 1s and 0s.

    Noble Prize for Medical Breakthrough here I come!

    --
    ed duval the very last person
  21. FLASH UPDATE: Only *26* building blocks... by siglercm · · Score: 1

    ... have been found necessary to replicate all known English language poetry, prose, social and political literature, and scientific and technical writings. This includes such works foundational to the development of the post-modern age as Newton's Principia, Shakespeare's plays and sonnets, Feynman's lectures, Friedman's works on economics, and so forth.

    Big whoop.

    --
    sigfault (core dumped)
    1. Re:FLASH UPDATE: Only *26* building blocks... by maxume · · Score: 1

      Whoops

        have been found necessary to replicate all known English language poetry prose social and political literature and scientific and technical writings This includes such works foundational to the development of the postmodern age as Newtons Principia Shakespeares plays and sonnets Feynmans lectures Friedmans works on economics and so forth

      Big whoop

      --
      Nerd rage is the funniest rage.
    2. Re:FLASH UPDATE: Only *26* building blocks... by Anonymous Coward · · Score: 0

      and scientific and technical writings.

      Actually, Scientists also use a lot of greek letters to represent variables and constants.

    3. Re:FLASH UPDATE: Only *26* building blocks... by Anonymous Coward · · Score: 0

      itsreallyhardtoreadwithountspaces

    4. Re:FLASH UPDATE: Only *26* building blocks... by mikiN · · Score: 1

      i want my capital letters comma period exclamation mark question mark apostrophe opening and closing quotes and parentheses em and en dash underscore etc
      or do you want me to write all of those in longhand
      never mind

      --
      The Hacker's Guide To The Kernel: Don't panic()!
    5. Re:FLASH UPDATE: Only *26* building blocks... by Grishnakh · · Score: 1

      So? Greek letters can easily be spelled out with the 26 characters in the English language: alpha, beta, gamma, sigma, etc.
      Furthermore, mathematical equations can be spelled out the same way: alpha over pi equals...

  22. How Many Licks Does It Take? by number6x · · Score: 1

    Three...

    • Protons
    • Electrons
    • Neutrons
  23. Further Reduction by Pedrito · · Score: 0, Troll

    I've managed to reduce all 68 of these molecules to a single commonality: Carbon!

    Curing diseases with this information is left as an exercise for the reader. Just send me the Nobel Prize. Thanks. Couldn't have done it without Slashdot.

  24. Yes by Anonymous Coward · · Score: 0

    68 molecules ought to be enough for anyone.

  25. Roland Strikes Again by Anonymous Coward · · Score: 0

    This story is just blogspam from the king of blogpspam. Luckily I have a solution, a greasemonkey script to remove Roland Piquepaille stories from slashdot: http://parksideninjas.com/greasemonkey/antidvorakscript.user.js

  26. Nitpick by Tweenk · · Score: 1

    What about hydroxyapatite? This is an incredibly common molecule in our bones, but like so many other molecules in the body, it is a relatively simple organic molecule.

    Except it's not a simple organic molecule, but an inorganic mineral. Organic != Biogenic.

    --
    Those who would give up liberty to obtain working drivers, deserve neither liberty nor working drivers.
  27. In other news... by wherrera · · Score: 1

    ...a distinguished chemist has announced that by his calculations less than 100 elements are required to explain the material composition of all of the earth's problems How simple it all seems, suddenly. :)

  28. Some Context by OG · · Score: 4, Informative

    This probably isn't a great article for Slashdot's front page. The original work referred to in the press release cited (and to be honest, the release overstates the original work to which it refers) is a piece of correspondence in a scientific journal of cell biology (Nature Cell Biology) from a cell biologist to fellow cell biologists calling for a more holistic approach to studying the origin of disease. It has a very specific target audience and a very specific message.

    He states (correctly) that many people thought that decoding genetics would lead to understand the nature of disease, but that hasn't happened to the degree we thought it would. Rather, they (I'm not a cell biologist) need to look at the entire cell and all of the components of the cell, not just the genes and proteins.

    To that end, he provides a very nice diagram that lists 4 major groups of organic molecules and shows at a high level how they fit together. It's a nice little reference piece for researchers and students and a nice reminder that the cell is a dynamic, complex body with many important components other than the genes and proteins that receive such a large amount of scrutiny.

    1. Re:Some Context by lgw · · Score: 2, Interesting

      Ifit had been properly summarized, it would have been fine. "The Cell: Not Just Software."

      --
      Socialism: a lie told by totalitarians and believed by fools.
    2. Re:Some Context by tfoss · · Score: 1

      I generally agree with your post, but will pick one nit:

      He states (correctly) that many people thought that decoding genetics would lead to understand the nature of disease, but that hasn't happened to the degree we thought it would.

      Many non-biology scientists may have thought that, people who actually work in the field were far less naive about it. Knowing the genome provides a *lot* of information, but is far from complete.

      A well-known scientist I talked to made the pretty interesting analogy of a cell to a large city. Decoding the genome is like obtaining a phone book for the city...but only the white pages. You know everyone who lives there, but you don't have any idea what they all do. Knowing the proteome is getting the yellow pages, you know what the people do, but still not exactly how they interact. It will still take a lot of work to understand how the cell/city does what it does.

      -Ted

      --
      -=-=- Quantum physics - the dreams stuff are made of.
  29. Improved Summary by SlashDotDotDot · · Score: 3, Insightful

    Researcher Proposes New Framework For Understanding Cells, Disease.

    Researcher Jamey Marth, publishing recently in Nature Cell Biology, has organized 68 molecular building blocks into four categories and illustrated their roles within cells. Marth suggests that organizing these building blocks, much as chemists organize the periodic table, will "provide a conceptual framework for biology that has the potential to enhance education and research by promoting the integration of knowledge.". Roland Piquepaille and Thomas Joseph offer commentary on their blogs.

    --
    /...
  30. this guy does something with sugars? by nietsch · · Score: 2, Interesting

    34 separate (common) sugars, + sugar-protein, sugar lipid combinations. Something tells me this guy has some stake in the acceptance of sugars in cell biology. By including the buildingblocks of DNA and RNA, but not their sequences and regulating factors, he skews the board drastically for his cause. Maybe he is right and there are some diseases dependent on attached sugar groups. But thus far, these are swamped by the number of confirmed diseases caused by mutations in the DNA, or infections by viruses, bacteria or protozoa.

    --
    This space is intentionally staring blankly at you
    1. Re:this guy does something with sugars? by Anonymous Coward · · Score: 1, Interesting

      Definitely - he's a glycobiologist. The glycobiologists have been making their case for acceptance for a long time now.

      This is pretty much standard stuff (especially with the quote from Varki) from the glyco crowd.

      I actually don't think the glyco world is that complex (at least in the mammalian systems - bacterial glycans are significantly more complex). I also don't know what their hidden agenda is, maybe it's coming up to time to get some projects funded, and they want to convince the NIH that they are actually doing something useful.

    2. Re:this guy does something with sugars? by g-san · · Score: 1

      "these are swamped by the number of confirmed diseases caused by mutations in the DNA..."

      Right. Normally a mutation is dealt with. DNA can repair itself, something will break down incorrectly built proteins, bad DNA making bad cell parts will kill themselves. Understanding why this doesn't always work is worthwhile.

      "...or infections by viruses, bacteria or protozoa."

      It's my understanding that a virus has to penetrate the cell well to infect a cell. See all that hair on the cell wall in blue in the diagram? Those are his sugars, so he may be on to something.

      Bacterial and protozoan infections, well, thats on a different level. Bacteria doesn't infect a cell, it infects an organism, sometimes it destroys it's host. But even those bacteria and protozoa are made up of these same building blocks, which could help us understand vectors to destroy them.

  31. Probably right, probably useless by gmuslera · · Score: 2, Insightful

    26 letters are enough to understand all english (and most of the other languages) literature?

    Wonder what must be using the infinite amount of monkeys instead of typewriters to generate all possible mixes of those 68 molecules.

    1. Re:Probably right, probably useless by SoupIsGoodFood_42 · · Score: 1

      Care to explain the analogy? Anyone can make an analogy, but that doesn't mean it's good.

  32. In other misrepresentations... by Arthur+Grumbine · · Score: 5, Funny

    It has been discovered that there are only 3 elementary particles that are at the cause of ALL disease. We should be more focused on understanding protons, neutrons and electrons, then we could have ALL the answers, not just The Answer.

    I mean, c'mon, there's only three of them, how difficult could it be?

    --
    Now that I think about it, I'm pretty sure everything I just said is completely wrong.
    1. Re:In other misrepresentations... by Anonymous Coward · · Score: 0

      sorry, you wrong... Next week you will see there are many other elementary particles. Just wait for them to turn on the LHC...

    2. Re:In other misrepresentations... by alxkit · · Score: 0

      only three of them?! man, i got my ass WHOOPED by the whole Fermi Sea back in school. i barely regained my sanity 5 years later but still have flashbacks. anytime someone says "hydrogen" - i run for cover.

    3. Re:In other misrepresentations... by Anonymous Coward · · Score: 0

      aren't there six of them? up, down, top, bottom, strange, charm?

    4. Re:In other misrepresentations... by Anonymous Coward · · Score: 0

      Wow, so CERN's LHC ( http://public.web.cern.ch/public/en/LHC/LHC-en.html ) will also help cure diseases!!

  33. Obligatory by Anonymous Coward · · Score: 2, Funny

    68 molecules ought to be enough for everyone!!

  34. 3 subatomic particles explain disease by m3j00 · · Score: 1

    It seems all cellular function is a result of interactions between protons, neutrons, and electrons in assorted arrangements.

  35. Sounds familiar... by markhb · · Score: 2, Insightful

    This sounds a lot like the idea that you can derive all of electromagnetic physics from Maxwell's equations. It may be true, but don't try to do it during the test.

    --
    Save Maine's economy: write stuff down. All comments are exclusively my own, not my employer.
  36. But for computer viruses by eqreed · · Score: 1

    For computer viruses, you only need to understand 1's and 0's.

  37. String theory by bornwaysouth · · Score: 1

    I understand your point. Once you have three particles, you are computationally screwed. So anything bigger than hydrogen is a bummer. Best to avoid particles altogether. String theory starts from the philosophical position that the universe is pointless, but vibrators make it endurable. I'm told it is a wonderland of elegant maths. Well, about 10^500 wonder-universes apparently. However, I object to strings being so pushy. What about the rest of the orchestra. Percussion got their star turn at the big bang, brass had that nice exponential shape period, but their bell point has been passed. Then the strings started sawing away, on a steady expansion that has gone on too long. 13 billion years and they haven't got to the Largo yet.

    I think it is time the woodwinds had a chance. Some previous posts have been kind enough to mention the W and Z bassoons, but I think everything would be much simpler if the whole universe was modeled as an 11 dimensional pipe with lots of holes in the theory at regular intervals, and the ability to double the publication frequency by being a blowhard.

    Of course, I'm off topic. But hey, the original picture really is into the big picture. It bundles all the sex steroids, male, female and the Vatican, all into a single group called sterol lipids. All of Hollywood just a fraction of one of the 68 types. Since it includes cholesterol, that's most of Washington. (The makers part, not the lipid shakers part.) So if a disease like the Washington-Hollywood Syndrome is so readily encompassed by the big picture, then it is only a small step to the multiverse, isn't it.

  38. Water by mosb1000 · · Score: 3, Insightful

    Somehow he seems to have missed water, which is crucial to all life processes as we know them.

  39. In other news by zobier · · Score: 0, Offtopic

    rolandispants

    --
    Me lost me cookie at the disco.
  40. Eighty-nine cents worth of chemicals by dpbsmith · · Score: 1

    And the human body is just eighty-nine cents worth of chemicals.

    And you can explain everything with just ninety-two elements. Or just four, earth, air, water, and fire.

    One of the most amazingly mind-opening things I ever read was a remark in a book by John R. Pierce, to the effect that Kirchoff's Laws are more general than Maxwell's Equations, because they can explain the behavior of all circuits, not just electronic circuits... but that Maxwell's Equations are more general than Kirchoff's Laws because they can explain the behavior of all electromagnetic systems, not just circuits.

  41. RTFP (Read The F****** Paper!) by femto · · Score: 1

    Bzzzt! Point three is wrong.

    To quote the paper in Nature:

    "Unlike the genome and proteome, the glycome and lipidome are not directly encoded by DNA. Nevertheless, the glycome and the lipidome contribute to the pathogenesis and severity of an increasing number of diseases,..."

    The whole point of the author's paper is that we need to understand more than the molecules which make generic material if we are to understand disease. The significance of the number 68 is that it is greater than the number of molecules involved in generics.

  42. Obligatory Microsoft joke by Rui+del-Negro · · Score: 1

    only 68 molecular building blocks are used to construct these four fundamental components of cells

    In other news, Microsoft is only interested in controlling two areas of digital computing: the zeros and the ones.

  43. Lipid Purification opportunity by Randym · · Score: 1
    I'm no expert in that, but it seems like a vicious cycle of no one purifies lipids because there hasn't been much work done to come up with a cheap and fast way of purifying lipids because no one purifies lipids. If anyone knows of a way to purify lipids for as cheap as you can DNA, let me know.

    Sounds like a job for http://innocentive.com .

    --
    DNA is a Turing machine. You, however, being dynamic and emergent, are not.
  44. and a book is made of paper and ink by Iowan41 · · Score: 1

    which tells you nothing of the content or the meaning.

  45. I can name that disease in 61 molecules by OrangeTide · · Score: 1

    That's how this game works right?

    --
    “Common sense is not so common.” — Voltaire
  46. one ring to rule them all by chloroquine · · Score: 1

    What about porphyrins?
    photosynthesis, oxygen transport, electron transfer, and so on.
    I guess this is a case of "your favorite molecule sucks."

  47. This is sort like saying... by strangeattraction · · Score: 1

    we can explain the economy by looking at one, five, ten, etc dollar bills.

  48. the lipids are not counted right by Anonymous Coward · · Score: 0

    ummmm... the person who wrote the UCSD news center headline badly muffed this. it's not anything like 68 molecules. The lipids listed encompass thousands or chemical species. The original article is clear enough that 68 enumerates building blocks, not molecules. But in trying for shorthand discussion of the topic, a gross oversimplification has occured. Whereas everything else on the figure is a molecule, the lipids are whole classes of molecules.