PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
20578724-1	2010	The catalysis of CO(2) hydration by human carbonic anhydrase II (HCA II) is limited in maximal velocity by proton transfer from a zinc-bound water molecule to the proton shuttle His64.	Water	141-146	carbonic anhydrase 2	Homo sapiens	42-63