FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO IMAGE: PANEL A SHOWS THE NORMAL DISTRIBUTION OF CD4 (GREEN) AND MHC-I (HLA, STAINED RED) IN T-LYMPHOCYTES. PANEL B SHOWS THE CHANGE IN DISTRIBUTION OF THESE TWO PROTEINS IN A T-LYMPHOCYTE. The discovery of a potential “Achilles heel” in Nef, the protein that is crucial...