PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
30288524-1	2018	To improve gene transfection efficiency in vitro and in vivo, we first grafted polyglycine (PGly) onto branched polyethyleneimine (PEI) (molecular weight MW 25 kDa) to obtain a novel gene vector PGly-PEI (PPG), before complexing it with poly(ethylene glycol)-poly-l-glutamate (PEG-PLG) for adjusting the charge density of PEI.	polyglycine	79-90	serglycin	Homo sapiens	205-208