CTLA-4 is a second receptor for the B cell activation antigen B7.Peter S. Linsley, J A Ledbetter|The Journal of Experimental Medicine|1991Cited by 1.7k
Human B7-1 (CD80) and B7-2 (CD86) bind with similar avidities but distinct kinetics to CD28 and CTLA-4 receptorsP S Linsley, Robert Peach, J A Ledbetter et al.|Immunity|1994Cited by 971
The CD40 ligand, gp39, is defective in activated T cells from patients with X-linked hyper-IgM syndromeAlejandro Aruffo, Hans D. Ochs, Mary Farrington et al.|Cell|1993Cited by 824