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amino acid

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amino acid
n. organic compound from which proteins are made
amino acids
group of organic compounds, basic constituents of proteins

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Amino acid
Amino acids are biologically important organic compounds containing amine (-NH2) and carboxylic acid (-COOH) functional groups, usually along with a side-chain specific to each amino acid. The key elements of an amino acid are carbonhydrogenoxygen, and nitrogen, though other elements are found in the side-chains of certain amino acids. About 500 amino acids are known and can be classified in many ways. They can be classified according to the core structural functional groups' locations as alpha- (α-), beta- (β-), gamma- (γ-) or delta- (δ-) amino acids; other categories relate to polaritypH level, and side-chain group type (aliphaticacyclicaromatic, containing hydroxyl or sulfur, etc.). In the form of proteins, amino acids comprise the second-largest component (water is the largest) of human musclescells and other tissues. Outside proteins, amino acids perform critical roles in processes such as neurotransmitter transport and biosynthesis.

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amino acid

1. organic compounds containing an amino group and a carboxylic acid group; "proteins are composed of various proportions of about 20 common amino acids"
(synonym) aminoalkanoic acid
(hypernym) organic compound
(hyponym) alanine
(substance-holonym) protein

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amino acid
n. aminokyselina

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amino acid
Rzecz. aminokwas

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