1ZSX | pdb_00001zsx

Crystal Structure Of Human Potassium Channel Kv Beta-subunit (KCNAB2)

• PDB DOI: https://doi.org/10.2210/pdb1ZSX/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2005-05-25 Released: 2005-06-07 
• Deposition Author(s): Wennerstrand, P., Johannsson, I., Ugochukwu, E., Kavanagh, K., Edwards, A., Arrowsmith, C., Williams, L., Sundstrom, M., Guo, K., von Delft, F., Oppermann, U., Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.172 (Depositor), 0.181 (DCC) 
• R-Value Work: 
  0.145 (Depositor), 0.150 (DCC) 
• R-Value Observed: 
  0.146 (Depositor) 

Starting Model: experimental

Literature

Crystal Structure Of Human Potassium Channel Kv Beta-subunit (KCNAB2)

Wennerstrand, P., Johannsson, I., Ugochukwu, E., Kavanagh, K., Edwards, A., Arrowsmith, C., Williams, L., Sundstrom, M., Guo, K., von Delft, F., Oppermann, U.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Biological Assembly 2  

Global Symmetry: Dihedral - D4  (Explore in 3D)
Global Stoichiometry: Homo 8-mer - A8 

Biological assembly 2 generated by PISA,PQS (software)

Macromolecule Content 

• Total Structure Weight: 39.79 kDa 
• Atom Count: 2,786 
• Modeled Residue Count: 323 
• Deposited Residue Count: 347 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Voltage-gated potassium channel beta-2 subunit	A	347	Homo sapiens	Mutation(s): 0  Gene Names: Origene EC: 1.1.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q13303 (Homo sapiens) Explore Q13303  Go to UniProtKB:  Q13303
PHAROS:  Q13303 GTEx:  ENSG00000069424

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAP	F [auth A]	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE C21 H28 N7 O17 P3 XJLXINKUBYWONI-NNYOXOHSSA-N
CL	B [auth A], C [auth A], D [auth A], E [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.172 (Depositor), 0.181 (DCC) 
• R-Value Work:  0.145 (Depositor), 0.150 (DCC) 
• R-Value Observed: 0.146 (Depositor) 

Space Group: I 4 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 113.231	α = 90
b = 113.231	β = 90
c = 142.505	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-06-07 
Deposition Author(s): Wennerstrand, P., Johannsson, I., Ugochukwu, E., Kavanagh, K., Edwards, A., Arrowsmith, C., Williams, L., Sundstrom, M., Guo, K., von Delft, F., Oppermann, U., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2005-06-07
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Derived calculations, Version format compliance
• Version 1.3: 2023-08-23
  Changes: Data collection, Database references, Derived calculations, Refinement description