PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7929118-10 1994 Analysis of the labeled phosphoamino acids present in topo II beta from M phase and logarithmically growing cells indicated that phosphorylation occurred mainly on serine and fairly on threonine residues in both topo II beta isoforms. Phosphoamino Acids 24-42 DNA topoisomerase II beta Homo sapiens 54-66