PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
9073168-6	1997	In vitro expression studies have shown that the NR1-NR2C subunit combination exhibits weaker magnesium block and higher affinity for glycine than NR1-NR2B.	Magnesium	93-102	glutamate receptor, ionotropic, NMDA2C (epsilon 3)	Mus musculus	52-56