Protein Vpx Viral protein X MTNPRETIPPGNSGEETIEEAFDWLDRTVEAINREAVNHLPRELIFQVWQRSWRYWHDEQGMSRSYTKYRYLCLMQKAVFMHFKKGCTCRGEGHGPGGWRSGPPPPPPPGLV VPX_HV2SB 112 X ORF protein vpx Plays a role in nuclear translocation of the viral pre- integration complex (PIC), thus is required for the virus to infect non-dividing cells. May be necessary for virus replication (By similarity).