Furthermore , pre-B cell and plasma cell lines were Spi-C -negative , suggesting that Spi-C might be a regulatory molecule during a specific phase of B lymphoid development .
furthermore , pre-b cell and plasma cell lines were spi-c -negative , suggesting that spi-c might be a regulatory molecule during a specific phase of b lymphoid development .
O O O O O O O O O B-protein_molecule O O O O B-protein_molecule O O O B-protein_family_or_group I-protein_family_or_group O O O O O B-other_name I-other_name I-other_name O