B chain

A polypeptide component of insulin containing 30 amino acyl residues, beginning with a phenylalanyl residue (NH2-terminus); insulin is formed by the linkage of a B chain to an A chain by two disulfide bonds; the amino-acid composition of the B chain is a function of species.

Synonym: phenylalanyl chain.

(05 Mar 2000)


Terms mentioned in text: polypeptide, component, insulin, acyl, residues, terminus, formed, linkage, b chain, a chain, disulfide bonds, acid, composition, chain, function, species, phenylalanyl chain
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