5I2N: Human GluN1/GluN2A LBD

Structure of the human GluN1/GluN2A LBD in complex with N-ethyl-7-{[2-fluoro-3-(trifluoromethyl)phenyl]methyl}-2-methyl-5-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-3-carboxamide (compound 29). Determined by X-ray diffraction at 2.12 Å resolution. Released 16 Mar 2016.

Method
X-ray diffraction
Resolution
2.12 Å
Organism
Homo sapiens
Chains
2
Atoms
4,764
Mol. weight
66.21 kDa
Ligands
CA, GLY, 67J, GLU
Released
16 Mar 2016

Explore 5I2N in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

5I2N contains 32 α-helices and 39 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 16 helices, 18 β-strands

ElementResiduesLengthSheet
β-strand7-1261
β-strand1512
β-strand1912
β-strand20-2341
α-helix24-252
β-strand36-4381
β-strand51-5991
α-helix61-7212
β-strand76-8161
β-strand90-9123
β-strand94-9523
α-helix97-1037
β-strand109-11021
β-strand11514
α-helix118-1214
β-strand125-12621
α-helix127-1293
β-strand131-140104
α-helix151-1544
α-helix156-1583
α-helix162-1632
β-strand165-16624
α-helix172-1809
α-helix182-1887
α-helix189-1913
α-helix196-2049
β-strand210-21454
α-helix215-22410
α-helix226-2283
β-strand230-23234
β-strand239-24464
β-strand247-24821
α-helix255-26713
α-helix270-2789
Chain B: 16 helices, 21 β-strands
ElementResiduesLengthSheet
α-helix61
β-strand7-1155
β-strand1416
β-strand1816
β-strand19-2135
β-strand3317
α-helix381
β-strand3917
α-helix40-412
β-strand43-4865
β-strand59-6575
α-helix67-7913
β-strand83-8755
β-strand96-9838
β-strand105-10738
α-helix109-1168
β-strand121-12225
β-strand12719
α-helix130-1334
β-strand136-13835
α-helix1391
α-helix1411
β-strand143-152109
α-helix163-1664
β-strand174-17529
β-strand177110
α-helix181-1888
α-helix190-1923
α-helix193-1997
β-strand204110
α-helix207-2159
β-strand221-22559
α-helix226-23510
β-strand239-251139
β-strand254-25635
α-helix262-27413
α-helix277-2859

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Glutamate receptor ionotropic, NMDA 2AAprotein285Homo sapiensQ12879 (AlphaFold model)
Glutamate receptor ionotropic, NMDA 1Bprotein293Homo sapiensQ05586 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>5I2N_1 Glutamate receptor ionotropic, NMDA 2A (chains A)
GSPDDNHLSIVTLEEAPFVIVEDIDPLTETCVRNTVPCRKFVKINNSTNEGMNVKKCCKG
FCIDILKKLSRTVKFTYDLYLVTNGKHGKKVNNVWNGMIGEVVYQRAVMAVGSLTINEER
SEVVDFSVPFVETGISVMVSRGTQVTGLSDKKFQRPHDYSPPFRFGTVPNGSTERNIRNN
YPYMHQYMTKFNQKGVEDALVSLKTGKLDAFIYDAAVLNYKAGRDEGCKLVTIGSGYIFA
TTGYGIALQKGSPWKRQIDLALLQFVGDGEMEELETLWLTGICHN
Sequence of entity 2 (B), FASTA
>5I2N_2 Glutamate receptor ionotropic, NMDA 1 (chains B)
GSMSTRLKIVTIHQEPFVYVKPTLSDGTCKEEFTVNGDPVKKVICTGPNDTSPGSPRHTV
PQCCYGFCIDLLIKLARTMNFTYEVHLVADGKFGTQERVNNSNKKEWNGMMGELLSGQAD
MIVAPLTINNERAQYIEFSKPFKYQGLTILVKKGTRITGINDPRLRNPSDKFIYATVKQS
SVDIYFRRQVELSTMYRHMEKHNYESAAEAIQAVRDNKLHAFIWDSAVLEFEASQKCDLV
TTGELFFRSGFGIGMRKDSPWKQNVSLSILKSHENGFMEDLDKTWVRYQECDS

Ligands and cofactors

IDNameFormulaCopies
CACalcium ionCa1
GLYGlycineC2 H5 N O21
67JN-ethyl-7-{[2-fluoro-3-(trifluoromethyl)phenyl]methyl}-2-methyl-5-oxo-5H-[1,3]t…C18 H15 F4 N3 O2 S1
GLUGlutamic acidC5 H9 N O41

Water and common crystallization additives (EPE) are not listed.

Primary citation

Discovery of GluN2A-Selective NMDA Receptor Positive Allosteric Modulators (PAMs): Tuning Deactivation Kinetics via Structure-Based Design. Volgraf, M., Sellers, B.D., Jiang, Y. et al. J Med Chem (2016) 59:2760-2779. DOI 10.1021/acs.jmedchem.5b02010 · PubMed

Other PDB entries of the same protein (UniProt Q12879 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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