Lewis antigen system

Lewis antigen system

Lewis antigen system is a human blood group system based upon genes on chromosome 19. There are two main types of Lewis antigens, Lewis a and Lewis b. They are red cell antigens which are not produced by the erythrocyte itself. Instead, it is a component of body secretions, and is subsequently absorbed onto the surface of the erythrocyte.

External links

* [http://www.ncbi.nlm.nih.gov/projects/mhc/xslcgi.fcgi?cmd=bgmut/systems_info&system=lewis Lewis at BGMUT] Blood Group Antigen Gene Mutation Database at NCBI, NIH


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