TCF-1 alpha , originally identified and purified through its binding sites on the HIV-1 promoter , was found to bind to the TCR alpha enhancer and to promoters for several genes expressed at significantly earlier stages of T-cell development than the TCR alpha gene ( e . g . , p56lck and CD3 delta ) .
tcf-1 alpha , originally identified and purified through its binding sites on the hiv-1 promoter , was found to bind to the tcr alpha enhancer and to promoters for several genes expressed at significantly earlier stages of t-cell development than the tcr alpha gene ( e . g . , p56lck and cd3 delta ) .
B-protein_molecule I-protein_molecule O O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-protein_family_or_group O O O O B-DNA_domain_or_region O O B-DNA_family_or_group O O O O O O B-other_name I-other_name O O B-protein_family_or_group O O O O O O O O B-DNA_domain_or_region O B-DNA_domain_or_region I-DNA_domain_or_region O O