3U6N

Open Structure of the BK channel Gating Ring


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.61 Å
  • R-Value Free: 0.289
  • R-Value Work: 0.259

Literature

Macromolecules
Sequence Display for 3U6N

Classification: TRANSPORT PROTEIN

Total Structure Weight: 629833.50

Macromolecule Entities
Molecule Chains Length Organism Details
High-Conductance Ca2+-Activated K+ Channel protein A, B, C..., D, E, F, G, HA, B, C, D, E, F, G, H 696 Danio rerio Mutation: S582R
Gene Name(s): kcnma1b
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

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

Protein Name: BK (SLO1) Channel Ca2+ gating ring from zebra fish in the open state


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

A, B, C, D, E, F, G, H CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.61 Å
  • R-Value Free: 0.289
  • R-Value Work: 0.259
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 137.65 α = 90.00
b = 210.82 β = 90.00
c = 238.76 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2011-10-12
  • Released Date: 2011-12-07
  • Deposition author(s): Yuan, P., MacKinnon, R.

Revision History

  • 2012-01-11
    Type: Database references
  • 2017-06-28
    Type: Database references, Source and taxonomy