4L73

Ca2+-bound MthK RCK domain at 2.5 Angstrom


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.226
  • R-Value Work: 0.178

Literature

Macromolecules
Sequence Display for 4L73

Classification: METAL TRANSPORT

Total Structure Weight: 54194.95

Macromolecule Entities
Molecule Chains Length Organism Details
Calcium-gated potassium channel MthK A, B 242 Methanothermobacter thermautotrophicus Fragment: RCK domain (UNP residues 107-336)
Gene Name(s): mthK MTH_1520
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

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

Protein Name: MthK Potassium channel, Ca++ gated


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

A, B CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CL
Query on CL

B CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
NA
Query on NA

A, B SODIUM ION
Na
FKNQFGJONOIPTF-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: 0.226
  • R-Value Work: 0.178
  • Space Group: P 31 2 1

Unit Cell:

Length (Å) Angle (°)
a = 67.96 α = 90.00
b = 67.96 β = 90.00
c = 159.89 γ = 120.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2013-06-13
  • Released Date: 2013-10-23
  • Deposition author(s): Smith, F.J., Rothberg, B.S.

Revision History

  • 2013-11-13
    Type: Database references