CD40 ligand

ENTREZID: 959 | Type: NA | Map: Xq26.3

OMIM: 300335

Summary Entrez
The protein encoded by this gene is expressed on the surface of T cells. It regulates B cell function by engaging CD40 on the B cell surface. A defect in this gene results in an inability to undergo immunoglobulin class switch and is associated with hyper-IgM syndrome. [provided by RefSeq, Jul 2008]