2ATK

Structure of a mutant KcsA K+ channel


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.261
  • R-Value Work: 0.238

Literature

Macromolecules
Sequence Display for 2ATK

Classification: IMMUNE SYSTEM / ION TRANSPORT

Total Structure Weight: 60418.46

Macromolecule Entities
Molecule Chains Length Organism Details
ANTIBODY FAB FRAGMENT HEAVY CHAIN A 219 Mus musculus
ANTIBODY FAB FRAGMENT LIGHT CHAIN B 212 Mus musculus
Voltage-gated potassium channel C 124 Streptomyces lividans Mutation: P2A, E71A, L90C
Gene Name(s): kcsA skc1
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Membrane Protein

Source: inferred by homology | Group: ALPHA-HELICAL

Subgroup Name: Channels: Potassium, Sodium, & Proton Ion-Selective

Protein Name: KcsA Potassium channel, H+ gated


Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
F09
Query on F09

C NONAN-1-OL
C9 H20 O
ZWRUINPWMLAQRD-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
K
Query on K

C POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.261
  • R-Value Work: 0.238
  • Space Group: I 4

Unit Cell:

Length (Å) Angle (°)
a = 155.16 α = 90.00
b = 155.16 β = 90.00
c = 75.71 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2005-08-25
  • Released Date: 2006-03-07
  • Deposition author(s): Cordero-Morales, J.F., Cuello, L.G., Zhao, Y., Jogini, V., Chakrapani, S., Roux, B., Perozo, E.

Revision History

  • Version 1_0: 2006-03-07

    Type: Initial release

  • Version 1_1: 2008-04-30

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Version format compliance

  • Version 1_3: 2011-11-16

    Type: Atomic model