tokens: Using a genetic screen in yeast , we have isolated B cell-derived cDNAs encoding Oct-binding factor 1 ( OBF-1 ) , a novel protein that specifically associates with Oct-1 and Oct-2 .
folded_tokens: using a genetic screen in yeast , we have isolated b cell-derived cdnas encoding oct-binding factor 1 ( obf-1 ) , a novel protein that specifically associates with oct-1 and oct-2 .
labels: O O O O O O O O O O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O B-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O O O O O O O O B-protein_molecule O B-protein_molecule O