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. 2022 Nov 30;10(12):3079. doi: 10.3390/biomedicines10123079

Figure 2.

Figure 2

Participation of STAP-2 in LCK-mediated CD3ζ activation. STAP-2 functions as an adaptor protein of LCK and CD3ζ. Once these proteins bind to STAP-2, LCK easily phosphorylates CD3ζ, resulting in the induction of T cell activation events, such as calcium mobilization and IL-2 production.