D-geneDNA sequences for the ‘diversity’ segments of the variable region of the heavy-chain gene of an IMMUNOGLOBULIN. Joining of a D-gene segment to a J-GENE segment, followed by fusion to a V-GENE generates a rearranged gene for the variable region of the heavy chain. See also C-GENE.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005