An active v-abl protein tyrosine kinase blocks immunoglobulin light-chain gene rearrangement .
an active v-abl protein tyrosine kinase blocks immunoglobulin light-chain gene rearrangement .
O O B-protein_molecule I-protein_molecule B-amino_acid_monomer O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O