1P7B

Crystal structure of an inward rectifier potassium channel

Structural Biology Knowledgebase: 1P7B SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.65 Å
  • R-Value Free: 0.329
  • R-Value Work: 0.295

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 1P7B

Classification: METAL TRANSPORT

Total Structure Weight: 74511.99

Macromolecule Entities
Molecule Chains Length Organism Details
integral membrane channel and cytosolic domains A, B 333 Burkholderia pseudomallei Fragment: potassium channel, c-terminal domain related to girk
Gene Name(s): ACT79_15855 AMS56_00145 DP46_1307

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

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

Protein Name: KirBac1.1 Inward-Rectifier Potassium channel (closed state)


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

A, B POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.65 Å
  • R-Value Free: 0.329
  • R-Value Work: 0.295
  • Space Group: I 2 2 2
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 92.84 α = 90.00
b = 105.62 β = 90.00
c = 258.63 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2003-05-01
  • Released Date: 2003-06-17
  • Deposition author(s): Kuo, A., Gulbis, J.M., Antcliff, J.F., Rahman, T., Lowe, E.D., Zimmer, J., Cuthbertson, J., Ashcroft, F.M., Ezaki, T., Doyle, D.A.

Revision History

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