The Commission justified this approach as follows: For example, the systematic name of alanine is 2-aminopropanoic acid, based on the formula CH 3−CH(NH 2)−COOH. More than 500 naturally occurring amino acids are known to constitute monomer units of peptides, including proteins, as of 2020 (though only 20 appear in the genetic code, plus selenocysteine, which is encoded in a special way.) Īmino acids are formally named by the IUPAC-IUBMB Joint Commission on Biochemical Nomenclature in terms of the fictitious "neutral" structure shown in the illustration. The elements present in every amino acid are carbon (C), hydrogen (H), oxygen (O), and nitrogen (N) in addition sulfur (S) is present in the side chains of cysteine and methionine, and selenium (Se) in the less common amino acid selenocysteine. Structure of a generic L-amino acid in the "neutral" form needed for defining a systematic name, without implying that this form actually exists in detectable amounts either in aqueous solution or in the solid state.Īmino acids are organic compounds that contain amino ( −NH + 3) and carboxylate −CO − 2 functional groups, along with a side chain (R group) specific to each amino acid.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |