4I9W

Human two pore domain K+ channel TRAAK (K2P4.1) - Fab complex structure

Structural Biology Knowledgebase: 4I9W SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.236
  • R-Value Work: 0.201

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 4I9W

Classification: METAL TRANSPORT

Total Structure Weight: 160474.05

Macromolecule Entities
Molecule Chains Length Organism Details
Potassium channel subfamily K member 4 A, B 309 Homo sapiens Fragment: UNP residues 1-300
Mutation: N104Q, N108Q
Gene Name(s): KCNK4 Gene View TRAAK
ANTIBODY FAB FRAGMENT LIGHT CHAIN D, F 211 Mus musculus
ANTIBODY FAB FRAGMENT HEAVY CHAIN E, G 217 Mus musculus

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

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

Protein Name: Two-Pore Domain Potassium Channel K2P4.1 (TRAAK)


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

A, G CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
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: 2.75 Å
  • R-Value Free: 0.236
  • R-Value Work: 0.201
  • Space Group: P 1 21 1

Unit Cell:

Length (Å) Angle (°)
a = 80.89 α = 90.00
b = 138.90 β = 94.87
c = 97.46 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2012-12-05
  • Released Date: 2013-01-23
  • Deposition author(s): Brohawn, S.G., Mackinnon, R.

Revision History

  • 2013-02-20
    Type: Citation | Details: Citation update