tokens: IL-7 did not maintain v-Abl -mediated differentiation arrest of the pre-B cells , as activation of NF-kappaB and RAG gene transcription was unaffected by IL-7 .
folded_tokens: il-7 did not maintain v-abl -mediated differentiation arrest of the pre-b cells , as activation of nf-kappab and rag gene transcription was unaffected by il-7 .
labels: B-protein_molecule O O O B-protein_molecule O O O O O B-cell_type I-cell_type O O O O B-protein_complex O B-DNA_domain_or_region I-DNA_domain_or_region O O O O B-protein_molecule O