Yt antigen system
Yt Antigen System
The Yt antigen system (pronounced "why-tee antigen system") is a blood group system that consists of two antigens, Yta and Ytb. These antigens are found on the surface of red blood cells and are important in the field of transfusion medicine.
Etymology
The Yt antigen system is named after the first person in whom the Yta antigen was identified, a patient with the initials Y.T. The Ytb antigen was later discovered in the same blood group system.
Antigens
The Yt antigens, Yta and Ytb, are located on the erythrocyte membrane protein acetylcholinesterase (AChE). The presence or absence of these antigens determines a person's Yt blood type.
Yta
The Yta antigen (pronounced "why-tee-ay antigen") is one of the two antigens in the Yt antigen system. It is present in about 77% of Caucasians and 91% of African Americans.
Ytb
The Ytb antigen (pronounced "why-tee-bee antigen") is the other antigen in the Yt antigen system. It is less common than Yta, being present in about 22% of Caucasians and 9% of African Americans.
Related Terms
See Also
External links
- Medical encyclopedia article on Yt antigen system
- Wikipedia's article - Yt antigen system
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