What GTP-binding protein is associated with the formation of the COPI coat on COPI-coated vesicles?
A)Sar1
B)Arf Arf
C)Arf1 (adenosylation ribose factor)
D)Ras
E)Src

Question

Quizplus · Accepted Answer

The GTP-binding protein associated with the formation of the COPI coat on COPI-coated vesicles is Arf1 (adenosylation ribose factor). Sar1 is associated with the formation of the COPII coat on COPII-coated vesicles. Ras is not directly involved in vesicle formation. Src is a tyrosine kinase and not a GTP-binding protein involved in vesicle formation.

What GTP-Binding Protein Is Associated with the Formation of the COPI