tokens: We examined alpha A1 ( an alpha A -gene product ) and alpha B1 and alpha B2 ( two alpha B -encoded isomers ) for their effects on the GM-CSF promoter .
folded_tokens: we examined alpha a1 ( an alpha a -gene product ) and alpha b1 and alpha b2 ( two alpha b -encoded isomers ) for their effects on the gm-csf promoter .
labels: O O B-protein_subunit I-protein_subunit O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O B-protein_subunit I-protein_subunit O B-protein_subunit I-protein_subunit O O B-protein_subunit I-protein_subunit O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O