9EI0 | pdb_00009ei0

Human Kv1.3 mutant - G427H with A0194009G09 nanobodies

• PDB DOI: https://doi.org/10.2210/pdb9EI0/pdb
• EM Map EMD-48072: EMDB EMDataResource

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens, Lama glama
• Expression System: Homo sapiens, Escherichia coli
• Mutation(s): Yes 


• Deposited: 2024-11-25 Released: 2025-12-03 
• Deposition Author(s): Selvakumar, P., Swartz, K.J.
• Funding Organization(s): National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.91 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Human Kv1.3 mutant - G427H

Selvakumar, P., Swartz, K.J.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Hetero 8-mer - A4B4 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 435.95 kDa 
• Atom Count: 15,252 
• Modeled Residue Count: 1,892 
• Deposited Residue Count: 3,928 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Potassium voltage-gated channel subfamily A member 3,Green fluorescent protein	A, F [auth B], G [auth C], H [auth D]	856	Homo sapiens	Mutation(s): 12  Gene Names: KCNA3, HGK5, GFP
UniProt & NIH Common Fund Data Resources
Find proteins for P22001 (Homo sapiens) Explore P22001  Go to UniProtKB:  P22001
PHAROS:  P22001 GTEx:  ENSG00000177272
Find proteins for P42212 (Aequorea victoria) Explore P42212  Go to UniProtKB:  P42212
UniProt Groups	P22001P42212

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
A0194009G09 nanobody	B [auth E], C [auth F], D [auth G], E [auth H]	126	Lama glama	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
K	I [auth A], J [auth A], K [auth A], L [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.91 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419:
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-03 
Deposition Author(s): Selvakumar, P., Swartz, K.J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)	United States	NS 002945-28

Revision History  

• Version 1.0: 2025-12-03
  Type: Initial release