>tr|Q900K4|Q900K4_9HIV1 Protein Tat OS=Human immunodeficiency virus 1 OX=11676 GN=tat PE=3 SV=1 MEPVDPNLEPWNHPGSQPKTACNTCYCKKCSYHCLVCFQTKGLGISYGRKKRRQRRSAPP SSEDHQNPISKQPLPRTQGDPTGSEESKKKVESKTETDPFD