These studies suggest that interaction of CD2 with its natural ligand , LFA-3 , may play a role in regulation of HIV expression .
these studies suggest that interaction of cd2 with its natural ligand , lfa-3 , may play a role in regulation of hiv expression .
O O O O O O B-protein_molecule O O O B-other_name O B-protein_molecule O O O O O O B-other_name O B-other_name I-other_name O