PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1437147-3 1992 The kinase domains are approximately 50-55% homologous to members of the cdc2/CDC28 kinase gene family, and each contains a cysteine-for-serine substitution within the conserved PSTAIRE motif. Cysteine 124-132 cyclin dependent kinase 1 Homo sapiens 73-77