id	keyword
elements-9064	vif
elements-9064	a3f
elements-9064	rhesus
elements-9064	species
elements-9064	doi
elements-9064	restriction
elements-9064	virus
elements-9064	proteins
elements-9064	macaques
elements-9064	clones
elements-9064	primate
elements-9064	hiv-1
elements-9064	host