PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11300774-6 2001 Mutagenesis of arginine 146 to proline (R146P) essentially converted the eNTPDase-3 ecto-apyrase to an ecto-ATPase (eNTPDase-2), mainly by decreasing the hydrolysis rates for nucleoside diphosphates. nucleoside diphosphates 175-198 ectonucleoside triphosphate diphosphohydrolase 3 Homo sapiens 73-83