PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 14529283-5 2003 The K(m) for GDP (130 +/- 30 microM) is similar to that determined for the soluble rat NTPDase6 expressed in mammalian cells. Guanosine Diphosphate 13-16 ectonucleoside triphosphate diphosphohydrolase 6 Rattus norvegicus 87-95