PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
21193311-4	2011	A search for estramustine phosphate analogs led to identification of two triterpenoids, enoxolone, and celastrol, having Shp2 PTP inhibitor activity.	triterpenoids	73-86	protein tyrosine phosphatase receptor type U	Homo sapiens	126-129	
21193311-5	2011	With the previously reported PTP1B inhibitor trodusquemine, our study reveals steroids and triterpenoids with negatively charged phosphate, carboxylate, or sulfonate groups as novel pharmacophores of selective PTP inhibitors.	triterpenoids	91-104	protein tyrosine phosphatase receptor type U	Homo sapiens	29-32