3UKM

Crystal structure of the human two pore domain potassium ion channel K2P1 (TWIK-1)

Structural Biology Knowledgebase: 3UKM SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.4 Å
  • R-Value Free: 0.279
  • R-Value Work: 0.273

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 3UKM

Classification: MEMBRANE PROTEIN

Total Structure Weight: 128661.02

Macromolecule Entities
Molecule Chains Length Organism Details
Potassium channel subfamily K member 1 A, B, C, D 280 Homo sapiens Fragment: UNP residues 19-288
Mutation: W21T, C22M, N95Q
Gene Name(s): KCNK1 Gene View HOHO1 KCNO1 TWIK1

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

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

Protein Name: Two-Pore Domain Potassium Channel K2P1.1 (TWIK-1)


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

A, C POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
Ligand Explorer
 
JSmol
UND
Query on UND

A, B, C, D UNDECANE
LIPID FRAGMENT (Synonym)
C11 H24
RSJKGSCJYJTIGS-UHFFFAOYSA-N
Ligand Explorer
 
JSmol

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.4 Å
  • R-Value Free: 0.279
  • R-Value Work: 0.273
  • Space Group: P 1 21 1
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 82.08 α = 90.00
b = 123.17 β = 94.91
c = 119.31 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2011-11-09
  • Released Date: 2012-02-08
  • Deposition author(s): Long, S.B., Miller, A.N.

Revision History

No revisions since initial release