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a complex blood group system consisting principally of two pairs of antigens determined by closely linked genes (crossovers have been observed, but rarely). M and N, determined by allelic genes, depend on sialic (neuraminic) acid residues. S and s are also determined by allelic genes, and an amorphic gene is common in blacks when another antigen (U) is missing. The system also includes numerous low frequency antigens.Medical dictionary. 2011.
blood group — Med. any of various classes into which human blood can be divided according to immunological compatibility, based on the presence or absence of specific antigens on red blood cells. Also called blood type. Cf. ABO system, Rh factor. [1915 20] * * … Universalium
Blood group — An inherited feature on the surface of the red blood cells. A series of related blood types constitute a blood group system such as the Rh or the ABO system. The frequencies of the ABO and Rh blood types vary from population to population. In the … Medical dictionary
Major human blood group systems — ▪ Table Major human blood group systems system date of discovery main antigens ABO 1901 A1, A2, B, H MNSs 1927 M, N, S, s P 1927 P1, P2 Rh 1940 D, C, c, E, e Lutheran 1945 Lua, Lub Kell 1946 K, k Lewis 1946 Lea, Leb Duffy 1950 Fya, Fyb Kidd 1951… … Universalium
Chromosome location, gene linkage, and disease associated with genes for blood group systems — ▪ Table Chromosome location, gene linkage, and disease associated with genes for blood group systems chromosome gene known linkage associated disease 1 Rh EL1 elliptocytosis Rh PGD Rh PGM Rh ENO Rh UMPK Rh FUCA 1 Radin Rh 1 Scianna Rh 1 Fy AMY1… … Universalium
MNSs — a blood group system consisting of groups M, N, and MN … Medical dictionary
MNSs — • a blood group system consisting of groups M, N, and MN … Dictionary of medical acronyms & abbreviations
antigen — Any substance that, as a result of coming in contact with appropriate cells, induces a state of sensitivity and/or immune responsiveness after a latent period (days to weeks) and that reacts in a demonstrable way with antibodies and/or immune… … Medical dictionary
M — 1. Symbol for mega (2); morgan; molarity (moles per liter, also written M or m); myopia or myopic; methionine; 6 mercaptopurine ribonucleoside in a nucleic acid; L. misce, mix; meta … Medical dictionary
N — 1. Symbol for newton; nitrogen; asparagine; nucleoside; normal solution; haploid chromsome number. 2. Designation for an inherited blood factor. See … Medical dictionary
Mn — Symbol for manganese. * * * a blood group in the MNSs blood group system; malignant nephrosclerosis; Master of Nursing; median nerve; meganewton; melena neonatorum; melanocytic nevus; membranous nephropathy; membranous neuropathy; mesenteric… … Medical dictionary
