PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
31827085-3	2019	We employed chemical library screening to identify and optimize methylxanthine derivatives as selective bioavailable PARG inhibitors.	methylxanthine	64-78	poly(ADP-ribose) glycohydrolase	Homo sapiens	117-121	
31827085-4	2019	Multiple crystal structures reveal how substituent positions on the methylxanthine core dictate binding modes and inducible-complementarity with a PARG-specific tyrosine clasp and arginine switch, supporting inhibitor specificity and a competitive inhibition mechanism.	methylxanthine	68-82	poly(ADP-ribose) glycohydrolase	Homo sapiens	147-151