Consider a signaling protein that is only made up of one SH2 domain and two SH3 domains. This protein is most likely ...
A) a monomeric G protein.
B) a guanine nucleotide exchange factor.
C) a kinase associated with receptor tyrosine kinase signaling.
D) an adaptor protein.
E) a negative regulator of receptor tyrosine kinase signaling.

Question

Quizplus · Accepted Answer

An example of such a protein is Grb2, an adaptor protein involved in signaling by receptor tyrosine kinases.

Consider a Signaling Protein That Is Only Made Up of One