1BL8

POTASSIUM CHANNEL (KCSA) FROM STREPTOMYCES LIVIDANS

Structural Biology Knowledgebase: 1BL8 SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.290
  • R-Value Work: 0.280

Literature

Macromolecules
Sequence Display for 1BL8

Classification: MEMBRANE PROTEIN

Total Structure Weight: 41129.54

Macromolecule Entities
Molecule Chains Length Organism Details
PROTEIN (POTASSIUM CHANNEL PROTEIN) A, B, C, D 97 Streptomyces lividans Mutation: 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
K
Query on K

A 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: 3.2 Å
  • R-Value Free: 0.290
  • R-Value Work: 0.280
  • Space Group: C 1 2 1
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 128.78 α = 90.00
b = 68.93 β = 124.63
c = 112.04 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1998-07-23
  • Released Date: 1998-07-29
  • Deposition author(s): Doyle, D.A., Cabral, J.M., Pfuetzner, R.A., Kuo, A., Gulbis, J.M., Cohen, S.L., Chait, B.T., Mackinnon, R.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4
  • 2011-07-13
    Type: Biological assembly | Details: Added software calculated values