C4b-binding protein (C4BP) activates B cells through the CD40 receptor.
Brodeur SR, Angelini F, Bacharier LB, Blom AM, Mizoguchi E, Fujiwara H, Plebani A, Notarangelo LD, Dahlback B, Tsitsikov E, Geha RS.
Brodeur SR, et al. Among authors: notarangelo ld.
Immunity. 2003 Jun;18(6):837-48. doi: 10.1016/s1074-7613(03)00149-3.
Immunity. 2003.
PMID: 12818164
Free article.