PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3226465-5 1988 The kinetic studies establish that the Km for ATP is 12.5 microM and 25.1 microM when using phosvitin and casein respectively as phosphoryl acceptors. Adenosine Triphosphate 46-49 casein kinase 2 beta Bos taurus 92-101