>sp|P04618|REV_HV1H2 Protein Rev OS=Human immunodeficiency virus type 1 (isolate HXB2 group M subtype B) GN=rev PE=1 SV=1 MAGRSGDSDEELIRTVRLIKLLYQSNPPPNPEGTRQARRNRRRRWRERQRQIHSISERILGTYLGRSAEPVPLQLPPLERLTLDCNEDCGTSGTQGVGSPQILVESPTVLESGTKE