2ITD

Potassium Channel KcsA-Fab complex in Barium Chloride


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.261
  • R-Value Work: 0.241

Literature

Macromolecules
Sequence Display for 2ITD

Classification: MEMBRANE PROTEIN

Total Structure Weight: 60333.21

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 Fragment: RESIDUES 1-124
Mutation: P2A, L90C
Gene Name(s): kcsA skc1
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

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

Protein Name: KcsA Potassium channel, H+ gated


Small Molecules
Ligands 1 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
BA
Query on BA

C BARIUM ION
Ba
XDFCIPNJCBUZJN-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.261
  • R-Value Work: 0.241
  • Space Group: I 4

Unit Cell:

Length (Å) Angle (°)
a = 156.07 α = 90.00
b = 156.07 β = 90.00
c = 75.42 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2006-10-19
  • Released Date: 2007-05-15
  • Deposition author(s): Lockless, S.W., Zhou, M., MacKinnon, R.

Revision History

  • Version 1_0: 2007-05-15

    Type: Initial release

  • Version 1_1: 2008-05-01

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Version format compliance

  • Version 1_3: 2011-11-16

    Type: Atomic model

  • Version 1_4: 2017-10-18

    Type: Refinement description