label: Formation of tri-heterotetramers of GluN1 (GRIN1), GluN2A (GRIN2A) and GluN2B (GRIN2B) (Homo sapiens)
label_lc: formation of tri-heterotetramers of glun1 (grin1), glun2a (grin2a) and glun2b (grin2b) (homo sapiens)