10FN | pdb_000010fn

SK5A-Germline in complex with GluN1-GluN2B, full refinement

• PDB DOI: https://doi.org/10.2210/pdb10FN/pdb
• EM Map EMD-75136: EMDB EMDataResource

• Classification: SIGNALING PROTEIN/Immune System
• Organism(s): Homo sapiens, Mus musculus
• Expression System: Spodoptera frugiperda, Homo sapiens
• Mutation(s): No 


• Deposited: 2026-01-16 Released: 2026-03-25 
• Deposition Author(s): Kleeman, S.O., Furukawa, H.F.
• Funding Organization(s): National Institutes of Health/National Institute of Mental Health (NIH/NIMH)

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.52 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Ectopic NMDAR expression in cancer unmasks germline-encoded autoimmunity

Kleeman, S.O., Furukawa, H.F.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 8-mer - A2B2C2D2 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Hetero 8-mer - A4B2C2 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 424.24 kDa 
• Atom Count: 26,023 
• Modeled Residue Count: 3,537 
• Deposited Residue Count: 3,786 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glutamate receptor ionotropic, NMDA 1	A, C	844	Homo sapiens	Mutation(s): 0  Gene Names: GRIN1, NMDAR1
UniProt & NIH Common Fund Data Resources
Find proteins for Q05586 (Homo sapiens) Explore Q05586  Go to UniProtKB:  Q05586
PHAROS:  Q05586 GTEx:  ENSG00000176884

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Glutamate receptor ionotropic, NMDA 2B	B, D	826	Homo sapiens	Mutation(s): 0  Gene Names: GRIN2B, NMDAR2B
UniProt & NIH Common Fund Data Resources
Find proteins for Q13224 (Homo sapiens) Explore Q13224  Go to UniProtKB:  Q13224
PHAROS:  Q13224 GTEx:  ENSG00000273079

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Light chain	E, G [auth I]	107	Mus musculus	Mutation(s): 0

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Heavy chain	F, H [auth J]	116	Mus musculus	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.52 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-03-25 
Deposition Author(s): Kleeman, S.O., Furukawa, H.F.

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)	United States	MH085926

Revision History  

• Version 1.0: 2026-03-25
  Type: Initial release