PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
8454617-4	1993	To test this hypothesis, glucosidase I was purified from the rat mammary gland and its active site was loaded with 1-deoxynojirimycin, to protect such a group(s), while -SH groups on the remaining surface of the enzyme were blocked with N-ethylmaleimide or para-chloromercuriphenylsulfonic acid.	Ethylmaleimide	237-253	mannosyl-oligosaccharide glucosidase	Homo sapiens	25-38