8DFL

Structure of human Kv1.3 with A0194009G09 nanobodies (alternate conformation)

• PDB DOI: https://doi.org/10.2210/pdb8DFL/pdb
• EM Map EMD-25417: EMDB EMDataResource

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens, Aequorea victoria, Lama glama
• Expression System: Homo sapiens, Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTM


• Deposited: 2022-06-22 Released: 2022-07-13 
• Deposition Author(s): Meyerson, J.R., Selvakumar, P.
• Funding Organization(s): Not funded

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.25 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structures of the T cell potassium channel Kv1.3 with immunoglobulin modulators

Selvakumar, P., Fernandez-Marino, A.I., Khanra, N., He, C., Paquette, A.J., Wang, B., Huang, R., Smider, V.V., Rice, W.J., Swartz, K.J., Meyerson, J.R.

(2022) Nat Commun 13: 3854

• DOI: https://doi.org/10.1038/s41467-022-31285-5

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 435.59 kDa 
• Atom Count: 15,283 
• Modelled Residue Count: 1,908 
• 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 fusion	A, F [auth B], G [auth C], H [auth D]	856	Homo sapiens, Aequorea victoria This entity is chimeric	Mutation(s): 0  Gene Names: KCNA3, HGK5, GFP Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P42212 (Aequorea victoria) Explore P42212  Go to UniProtKB:  P42212
Find proteins for P22001 (Homo sapiens) Explore P22001  Go to UniProtKB:  P22001
PHAROS:  P22001 GTEx:  ENSG00000177272
UniProt Groups	P22001P42212

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Nanobody A0194009G09	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 (Subject of Investigation/LOI)	I [auth A], J [auth A], K [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.25 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-07-13 
Deposition Author(s): Meyerson, J.R., Selvakumar, P.

---

Funding Organization	Location	Grant Number
Not funded	United States	--

Revision History  

• Version 1.0: 2022-07-13
  Type: Initial release