Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to H gene: H antigen
in laboratory animals, a gene that can elicit an immune response and thereby cause rejection of a homograft when tissue is transplanted from one individual to another; in humans, histocompatibility genes control HLA antigens.
Synonym(s): H gene
Farlex Partner Medical Dictionary © Farlex 2012
H geneTransfusion medicine A gene that encodes the enzyme, α-l-fucosyl-transferase, which produces an oligosaccharide, the H antigen; homozygous deficiency of H gene results in a Bombay–or hh phenotype individual who, lacking the above transferase, cannot attach the fucose to the galactose on the precursor H substance. See Bombay phenotype, H antigen, Secretor, Ulex europa.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.