PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26033523-9 2015 Release of ATP, one of the key substrates for NPP1, from osteoblasts, was unaffected by acidosis. Adenosine Triphosphate 11-14 ectonucleotide pyrophosphatase/phosphodiesterase 1 Mus musculus 46-50