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Switch #:
SWTI000349
Switch type:
Avidity-sensing

Description:
Phosphorylation of Y160 and Y171 in the ITAM motif of T-cell surface glycoprotein CD3 gamma chain (CD3G) induces high-avidity binding to the tandem SH2 domains of Tyrosine-protein kinase ZAP-70 (ZAP70).

Participants:
(1) T-cell surface glycoprotein CD3 gamma chain (CD3G)
(2) Tyrosine-protein kinase ZAP-70 (ZAP70)

Interactions
Interaction #1 CD3G - ZAP70

Interfaces
(1) LIG_TYR_ITAM motif (157DQLYQPLKDREDDQYSHL174) in T-cell surface glycoprotein CD3 gamma chain (CD3G)
(2) SH2 domain (10-87) in Tyrosine-protein kinase ZAP-70 (ZAP70)

Interaction Regulation
PTM-dependent Induction (Phosphorylation of Y160 and Y171 on T-cell surface glycoprotein CD3 gamma chain (CD3G)) of the T-cell surface glycoprotein CD3 gamma chain (CD3G) LIG_TYR_ITAM motif - Tyrosine-protein kinase ZAP-70 (ZAP70) SH2 domain interaction

Interaction #2 CD3G - ZAP70

Interfaces
(3) LIG_TYR_ITAM motif (157DQLYQPLKDREDDQYSHL174) in T-cell surface glycoprotein CD3 gamma chain (CD3G)
(4) SH2 domain (163-239) in Tyrosine-protein kinase ZAP-70 (ZAP70)

Interaction Regulation
PTM-dependent Induction (Phosphorylation of Y160 and Y171 on T-cell surface glycoprotein CD3 gamma chain (CD3G)) of the T-cell surface glycoprotein CD3 gamma chain (CD3G) LIG_TYR_ITAM motif - Tyrosine-protein kinase ZAP-70 (ZAP70) SH2 domain interaction

Context
References

(1) Analysis of the interaction of ZAP-70 and syk protein-tyrosine kinases with the T-cell antigen receptor by plasmon resonance.
Bu et al. Proc. Natl. Acad. Sci. U.S.A. (1995)

See also

Other switches involving participants
Tyrosine-protein kinase ZAP-70 (ZAP70) - 5 more (view)

Other switches involving interfaces
SH2 domain - 140 more (view)
LIG_TYR_ITAM - 8 more (view)




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