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Template:Infobox gene Semaphorin 7A, GPI membrane anchor (John Milton Hagen blood group) (SEMA7A) also known as CD108 (Cluster of Differentiation 108), is a human gene.[1]

SEMA7A is a membrane-bound semaphorin that associates with cell surfaces via a glycosylphosphatidylinositol (GPI) linkage. SEMA7A is also known as the John-Milton-Hagen (JMH) blood group antigen, an 80-kD glycoprotein expressed on activated lymphocytes and erythrocytes.[supplied by OMIM][1]


This protein is known to have eight variants in the extracellular region: seven lie within the Sema domain and one within the PSI domain.

Molecular biology

This protein forms dimers.


This protein acts as a receptor for the malaria parasite Plasmodium falciparum.

See also


Further reading

External links

This article incorporates text from the United States National Library of Medicine, which is in the public domain.