https://www.selleckchem.com/
Cytotoxic T-lymphocyte-associated protein 4 (CTLA4) is an immune checkpoint, which downregulates T cell activation and T regulatory cell function. CTLA4 haploinsufficiency (CTLA4 HI) leads to T cell hyperactivation, immunodeficiency and variable degree of immune dysregulation. Furthermore, CTLA4 HI predisposes affected individuals to development of various cancers. Less well understood is the penetrance and expressivity of CTLA4 mutations. We describe five members of a single family with heterozygous CTLA4 splice site mutation c.458-1G C, previously sh
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