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Switch #:
SWTI000306
Switch type:
Pre-assembly
Switch subtype:
Composite binding site formation

Description:
Binding of Zinc metalloproteinase/disintegrin to integrin receptors depends on pre-assembly of Integrin alpha-IIb (ITGA2B)-Integrin beta-3 (ITGB3) heterodimers, since association of the integrin alpha and beta subunits results in the formation of a composite binding site for the RGD motif in the ligand.

Participants:
(1) Integrin alpha-IIb (ITGA2B)
(2) Integrin beta-3 (ITGB3)
(3) Zinc metalloproteinase/disintegrin

Interactions
This is a sequential switch. The interactions in this switch take place in a defined order. The order is defined by numbers to the left of each interaction. More than one interaction can occur in each step, these interactions occur independently but are necessary for future step
2Interaction #2 - Interaction #1 ITGA2B - ITGB3

Requires Interaction #1 ITGA2B - ITGB3

Interfaces
(3) LIG_RGD motif (459RGD461) in Zinc metalloproteinase/disintegrin
(4) Interaction #1 ITGA2B - ITGB3
Context
References

(1) Elegantin and albolabrin purified peptides from viper venoms: homologies with the RGDS domain of fibrinogen and von Willebrand factor.
Williams et al. Biochim. Biophys. Acta (1990)

See also

Other switches involving participants
Integrin beta-3 (ITGB3) - 15 more (view)
Integrin alpha-IIb (ITGA2B) - 2 more (view)

Other switches involving interfaces
FG-GAP repeat - 13 more (view)
Integrin, beta chain - 13 more (view)
LIG_RGD - 12 more (view)




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