tokens: SM is a phosphoprotein in EBV -infected cells and can be phosphorylated in vitro with casein kinase II ( CKII ) .
folded_tokens: sm is a phosphoprotein in ebv -infected cells and can be phosphorylated in vitro with casein kinase ii ( ckii ) .
labels: B-protein_molecule O O B-protein_family_or_group O B-virus B-cell_type I-cell_type O O O O O O O B-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O