human leukocyte antigens
The definitions used in this glossary of terminology either have been provided by the authors of the articles, or have been extracted wholly or in part, or paraphrased from the following sources: The American Medical Association Encyclopedia of Medicine, Charles B. Clayman, MD, Medical Editor, Random House, New York, 1989; Biotechnology from A to Z, 2d Edition, William Bains, Oxford University Press, New York, New York, 2002; A Dictionary of Genetics, 6th Edition, Robert C. King and William D. Stansfield, Oxford University Press, New York, New York, 2002; Dorland's Illustrated Medical Dictionary, 29th and 30th Editions, W. B. Saunders Company, Philadelphia, 2000, 2003; Genes VII, Benjamin Lewin, Oxford University Press, New York, New York, 2000; The Gale Encyclopedia of Genetic Disorders, Volumes I and II, Stacey L. Blachford, Ed., Thomson Learning, New York, New York, 2002; The Merriam-Webster Dictionary, Merriam-Webster, Inc., Springfield, Massachusetts, 1997; Molecular Biology of the Cell, 3rd Edition, Bruce Alberts, et al., Garland Publishing, 1994; The Random House Dictionary of the English Language, Unabridged Edition, 1966; Webster's Ninth New Collegiate Dictionary, 1991.
DEFINITION:
- human leukocyte antigens
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(HLA) Histocompatibility antigens governed by genes of the HLA complex (the human major histocompatibility complex), a region on the short arm of chromosome 6 containing several genetic loci, each having multiple alleles. Loci are designated by letters, HLA-A, HLA-B, HLA-C, HLA-DP, HLA-DQ, HLA-DR (there are at least three subloci in the D region), HLA-MB, HLA-MT, and HLA-Te, and alleles at each locus by numbers, e.g., HLA-A1, provisional designations being indicated by "w" (for "workshop"), e.g., HLA-DRw10. The A, B, C, DR, MB, MT, and Te antigens are defined and typed by serologic reactions. The D antigens are defined and typed by one-way mixed lymphocyte culture (MLC) using panels of HLA-D-homozygous typing cells. The SB (for "secondary B cell") antigens are defined and typed by primed lymphocyte typing.




Used in 2 Term definitions
Used in 2 Term definitions