PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12540840-10 2003 Using HEK293 cells to express human SERCA3a, we were able to measure both ATP-mediated, oxalate-dependent (45)Ca(2+) uptake and Ca(2+)-dependent ATP hydrolysis activities due exclusively to SERCA3. Oxalates 88-95 ATPase sarcoplasmic/endoplasmic reticulum Ca2+ transporting 3 Homo sapiens 36-42