tokens: In addition to the existing isoform ( Pax-5 , which we have named Pax-5a ) , we have isolated three new isoforms , Pax-5b , Pax-5d , and Pax-5e , from murine spleen and B-lymphoid cell lines using library screenings and polymerase chain reaction amplification .
folded_tokens: in addition to the existing isoform ( pax-5 , which we have named pax-5a ) , we have isolated three new isoforms , pax-5b , pax-5d , and pax-5e , from murine spleen and b-lymphoid cell lines using library screenings and polymerase chain reaction amplification .
labels: O O O O O O O B-protein_molecule O O O O O B-protein_molecule O O O O O O O O O B-protein_molecule O B-protein_molecule O O B-protein_molecule O O O O O B-cell_line I-cell_line I-cell_line O B-other_name I-other_name O B-other_name I-other_name I-other_name I-other_name O