PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1191255-3	1975	Titration in sodium barbiturate buffer of acrosin, a serine proteinase from sperm acrosomes, with the ester substrate 4-methylumbelliferyl p-guanidinobenzoate gave rise to an incomplete "burst" of 4-methylumbelliferone.	Esters	102-107	acrosin	Homo sapiens	42-49