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Yt antigen system

The Yt antigen system (also known as Cartwright) is present on the membrane of red blood cells and helps determine a person's blood type. The antigens are found on the protein acetylcholinesterase, an enzyme which helps break down acetylcholine.[1] The Yt system features two alleles, Yt(a) and Yt(b). Antibodies against the Yt system can lead to transfusion reactions such as hemolytic anemia.


Online Mendelian Inheritance in Man (OMIM) 112100 - OMIM page on Yt antigen

  1. ^ Bartels, CF; Zelinski, T; Lockridge, O (1993). "Mutation at codon 322 in the human acetylcholinesterase (ACHE) gene accounts for YT blood group polymorphism". American Journal of Human Genetics. 52 (5): 928–36. PMC 1682033. PMID 8488842.

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