tokens: We also examined whether CBF could distinguish a 1-bp difference between the enhancer core of SL3 and the core of the nonleukemogenic virus , Akv .
folded_tokens: we also examined whether cbf could distinguish a 1-bp difference between the enhancer core of sl3 and the core of the nonleukemogenic virus , akv .
labels: O O O O B-protein_molecule O O O B-other_name I-other_name O O B-DNA_substructure I-DNA_substructure I-DNA_substructure I-DNA_substructure O O O O O B-virus I-virus O B-virus O