>3IK5_1|Chains A, B[auth C]|Protein Nef|Simian immunodeficiency virus (388909) GSDDLVGVSVRPKVPLRTMSYKLAIDMSHFIKEKGGLEGIYYSARRHRILDIYLEKEEGIIPDWQDYTSGPGIRYPKTFGWLWKLVPVNVSDEAQEDEEHYLMHPAQTSQWDDPWGEVLAWKFDPTLAYTYEAYVRYPEEFGS >3IK5_2|Chains C[auth B], D|T-cell surface glycoprotein CD3 zeta chain|null AYQQGQNQLYNELNLGRR