Plasma membrane G proteincoupled receptors share which of these characteristics?

Question

Plasma membrane G proteincoupled receptors share which of these characteristics?

Question 105 options:

A. catalytic activity for synthesis of a cyclic nucleoside monophosphate

B. covalent modification by ADPribosylation

C. identical primary sequences in the cytosolic domains

D. ligand binding site on the external surface

E. transmembrane core consisting of 10 alpha-helices.

A. catalytic activity for synthesis of a cyclic nucleoside monophosphate

B. covalent modification by ADPribosylation

C. identical primary sequences in the cytosolic domains

D. ligand binding site on the external surface

E. transmembrane core consisting of 10 alpha-helices.

Explanation / Answer

A,B and D are correcet option

It is involves the ADP ribosylation in the case of Cholera toxin.

G-proteins of the Gs class catalyze the conversion of cytosolic adenosine triphosphate (ATP) to cAMP.

This is largest family of cell surface receptor.

These three point are correct but Option E transmembrane core consisting of 10 alpha-helices is incorrect because it have seven-transmembrane domain receptors not 10 alpha-helices. and option C is also incorrect.

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