Your research group has just cloned a G proteincoupled recep

Your research group has just cloned a G protein-coupled receptor (GPCR) involved in hormone response at the cardiomyocyte plasma membrane. Which amino acid sequence elements would this receptor be expected to contain? A short sequence of basic amino acid residues. An N-terminal hydrophobic signal sequence only. An N-terminal signal sequence plus seven transmembrane domains. A single transmembrane domain. No targeting sequences.

Solution

correct answer is :

An N terminal signal sequence plus seven Transmembrane proteins.

GPCR in the plasma membrane has characteristic seven transmembrane proteins and besides that it has the signal sequence with extracellular amino terminua and intracellular carboxyl terminus proteins.