sentences:  HIV MA also makes contacts with the HIV trans-membrane glycoprotein gp41 in the assembled virus and, indeed, may have a critical role in recruiting Env glycoproteins to viral budding sites.Once Gag is translated on ribosomes, Gag polyproteins are myristoylated at their N-terminal glycine residues by N-myristoyltransferase 1.This is a critical modification for plasma membrane targeting.