Lewis blood group


Lewis blood group
A pair of blood group activities associated with the A, B, H substances. Lewis Lea is a separate gene, whereas Leb arises from the combined activity of the enzymes specified by Lea and H genes.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • Lewis blood group — n any of a system of blood groups controlled by a pair of dominant recessive alleles and characterized by antigens which are released into body fluids, are adsorbed onto the surface of red blood cells, and tend to interreact with the antigens… …   Medical dictionary

  • Lewis blood group system — ▪ physiology       classification of human blood based on the expression of glycoproteins called Lewis (Le) antigens (antigen) on the surfaces of red blood cells (erythrocyte) or in body fluids, or both. The Lewis antigen system is intimately… …   Universalium

  • Lewis Blood Group, Le Blood Group — See Blood Groups Appendix …   Medical dictionary

  • 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

  • blood group antigens — the antigens responsible for specificities of blood groups; those of the ABO and Lewis blood groups were the first to be characterized. They are formed by sequential addition of monosaccharide moieties to any of several different types of… …   Medical dictionary

  • blood group antigens — The set of cell surface antigens found chiefly, but not solely, on blood cells. More than fifteen different blood group systems are recognized in humans. There may be naturally occurring antibodies without immunization, especially in the case of… …   Dictionary of molecular biology

  • ABO blood group system — ABO redirects here. For other uses, see ABO (disambiguation). H substance redirects here. For use in inflammation, see histamine. ABO blood group antigens present on red blood cells and IgM antibodies present in the serum The ABO blood group… …   Wikipedia

  • Rh blood group system — Rh redirects here. For Siddharta, see Rh (album). For the band, see The RH Factor. The Rh (Rhesus) blood group system (including the Rh factor) is one of the currently 30 human blood group systems. It is clinically the most important blood group… …   Wikipedia

  • Human blood group systems — The International Society of Blood Transfusion (ISBT) currently recognises 30 major blood group systems (including the ABO and Rh systems). [cite web |url=http://blood.co.uk/ibgrl/ISBT%20Pages/ISBT%20Terminology%20Pages/Table%20of%20blood%20group%… …   Wikipedia


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