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Medical Definition of A chain
1. A polypeptide component of insulin containing 21 amino acyl residues, beginning with a glycyl residue (NH2-terminus); insulin is formed by the linkage of an A chain to a B chain by two disulfide bonds; the amino-acid composition of the A chain is a function of species. Synonym: glycyl chain. In general, one of the polypeptides in a multiprotein complex. (05 Mar 2000)
Lexicographical Neighbors of A Chain
AYBABTU AYH AYN AZ AZERTY AZN AZT AZUR A & E A & R | A 1 A and M A bands A batteries A battery A chain (current term) A cup A cups A disks A fibres | A game A games A horizon A layer A levels A list A major A minor A minus |