>tr|Q774X3|Q774X3_SIV Vpx protein OS=Simian immunodeficiency virus 17E-Fr GN=vpx MSDPRERIPPGNSGEETIGEAFEWLNRTVEEINREAVNHLPRELIFQVWQRSWEYWHDEQ GMSPSYVKYRYLCLIQKALFMHCKKGCRCLGEGHGAGGWRPGPPPPPPPGLA