OCA-B is a B-cell-specific coregulator of the broadly expressed POU domain transcription factor Oct-1 .
oca-b is a b-cell-specific coregulator of the broadly expressed pou domain transcription factor oct-1 .
B-protein_molecule O O B-protein_family_or_group I-protein_family_or_group O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group B-protein_molecule O