[doctorF]

Sequence-specific cleavage of proteins plays a role in which of the following processes?

A) Activation of G proteins by hormone receptors
B) Assembly of microtubules
C) Cellular uptake of iron
D) Initiation of coagulation
E) Transport of proteins into the nucleus

 

[ath.pantelis]

I think the correct answer is D. Throughout the coagulation cascade, every factor constitutes a substrate ready to be cleaved by the previous factor, once activated. Coagulation factors are mainly serine proteases.

A is related to successive phosphorylations.

B is related to polymerization-depolymerization of tubulins.

C is related to Fe binding to proteins (transferrin & ferroportin).

E is related to nuclear pore complexes, importins etc.

 

[Seetal]

is it D

is D correct dr.F?
i agree too, just that i tot it couldve been E too.

 

[doctorF]

yeah D is ryt!!!