The stimulatory effects of gp160 are mediated through the CD4 molecule , since pretreatment with soluble CD4 abrogates its activity .
the stimulatory effects of gp160 are mediated through the cd4 molecule , since pretreatment with soluble cd4 abrogates its activity .
O O O O B-virus O O O O B-protein_molecule I-protein_molecule O O O O O B-protein_molecule O O O O