TCF-1 consists of two polypeptides of about 50 kD and 105 kD ; the former seems to be related to the 50 kD polypeptide of NF-kB .
tcf-1 consists of two polypeptides of about 50 kd and 105 kd ; the former seems to be related to the 50 kd polypeptide of nf-kb .
B-protein_molecule O O O B-peptide O O B-peptide I-peptide O B-peptide I-peptide O O O O O O O O O B-protein_subunit I-protein_subunit I-protein_subunit O B-protein_subunit O