sindbis virus pe2/e2 has several cysteine residues near the carboxy terminus , a region of the protein postulated to be localized on the inside ( cytoplasmic face ) of the bilayer , and protease digestion of microsomal membranes containing e2 protein removed a small portion of this cytoplasmic tail as well as significant amounts of the fatty acid .
C0010834
cytoplasmic
C1511625
cytoplasmic tail