All
 D12 Amino Acids, Peptides, and Proteins D000602 +
 D12.776 Proteins D011506 +
 D12.776.543 Membrane Proteins D008565 +
 D12.776.543.750 Receptors, Cell Surface D011956 +
 D12.776.543.750.925 Receptors, Virus D011991 +
 D12.776.543.750.925.700 Receptors, HIV D015728 +
 D12.776.543.750.925.700.025 Antigens, CD4 D015704 
 D12.776.543.750.925.700.605 Receptors, CCR5 D019713 
 D12.776.543.750.925.700.650 Receptors, CXCR4 D019718