New Amino Acid Discovered

EricMargel writes: "As published in Science, researchers at the Ohio State University claim to have discovered the 22nd known amino acid, pyrrolysine, the first discovered since 1986." I hope rice and beans are still sufficient to get all the needed amino acids.

Comments

Re:Infinite number of amino acids

[IdahoEv]

but interestingly only 20 or 22 are found in life. And only the levorotary form at the amine carbon is found.

At the risk of nitpicking, significantly more than 20 or 22 amino acids are found in life, just not as building blocks of proteins. Take for example dopamine, which is an amino acid not used in proteins in any known organism, but a rather common neurotransmitter in most animals.