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4KFQ

Crystal structure of the NMDA receptor GluN1 ligand binding domain in complex with 1-thioxo-1,2-dihydro-[1,2,4]triazolo[4,3-a]quinoxalin-4(5H)-one

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
Glutamate receptor ionotropic, NMDA 1polymer29233340.02UniProt (P35439)
Pfam (PF10613)
Pfam (PF00060)
Rattus norvegicus (brown rat rat rats)GluN1, Glutamate [NMDA] receptor subunit zeta-1, N-methyl-D-aspartate receptor subunit NR1, NMD-R1
2C, Q
(A, B)
1-sulfanyl[1,2,4]triazolo[4,3-a]quinoxalin-4(5H)-onenon-polymer218.22Chemie (KFQ)
3D, E, F, G, H...
(A, B)
GLYCEROLnon-polymer92.118Chemie (GOL)
4AA, BA, CA, DA, M...
(B, A)
SULFATE IONnon-polymer96.18Chemie (SO4)
5EA, FA
(A, B)
waterwater18.0414Chemie (HOH)
Sequence modifications
A, B: 2 - 152 (UniProt: P35439)
PDBExternal DatabaseDetails
Gly 1-expression tag
A, B: 155 - 292 (UniProt: P35439)
PDBExternal DatabaseDetails
Gly 153-linker
Thr 154-linker
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight66680.1
Non-Polymers*Number of molecules28
Total formula weight2862.7
All*Total formula weight69542.7
*Water molecules are not included.

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PDB entries from 2026-02-04

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