>sp|P19508|VPX_SIVSP Protein Vpx OS=Simian immunodeficiency virus GN=vpx MSDPRERIPPGNSGEETIGEAFDWLDRTVEEINRAAVNHLPRELIFQVWRRSWEYWHDEM GMSVSYTKYRYLCLIQKAMFMHCKKGCRCLGGEHGAGGWRPGPPPPPPPGLA