| 释义 |
B chain
B chain[′bē ‚chān] (immunology) light chain B chain
B chain1. the longer polypeptide component of insulin containing 30 amino acyl residues, beginning with a phenylalanyl residue (NH2-terminus); insulin consists of a B chain linked to an A chain by two disulfide bonds; the amino acid composition of the B chain is a function of species; 2. the light chain of an immunoglobulin. B chain (chān) A polypeptide component of insulin containing 30 amino acyl residues; insulin is formed by the linkage of a B chain to an A chain. |