tokens: The inducible C1 protein was partially purified by three chromatographic steps and characterized by u . v . cross-linking as a 47 kDa protein .
folded_tokens: the inducible c1 protein was partially purified by three chromatographic steps and characterized by u . v . cross-linking as a 47 kda protein .
labels: O B-protein_molecule B-protein_molecule O O O O O O B-other_name I-other_name O O O B-other_name I-other_name I-other_name I-other_name I-other_name O O B-protein_molecule I-protein_molecule I-protein_molecule O