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B7 is a type of peripheral membrane protein found on activated antigen-presenting cells (APC) that, when paired with either a CD28 or CD152 (CTLA-4) surface protein on a T cell, can produce a costimulatory signal or a coinhibitory signal to enhance or decrease the activity of a MHC-TCR signal between the APC and the T cell, respectively. Binding of the B7 of APC to CTLA-4 of T-cells causes inhibition of the activity of T-cells.

CD28-B7

Cat. No. Product Name CAS No. Information
CSN27546 B7/CD28 interaction inhibitor 1 635324-72-0 B7/CD28 interaction inhibitor 1 is a potent B7.1-CD28 interaction inhibitor with an IC50 of 50 nM.
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