PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15853645-8 2005 Although they are competitive with ATP at the catalytic site, their kinase selectivity varies greatly, and inhibitors selective for certain CDKs have begun to be identified. Adenosine Triphosphate 35-38 cyclin dependent kinase 1 Homo sapiens 140-144