2A79

Mammalian Shaker Kv1.2 potassium channel- beta subunit complex

Structural Biology Knowledgebase: 2A79 SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.252
  • R-Value Work: 0.222

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 2A79

Classification: MEMBRANE PROTEIN

Total Structure Weight: 101330.23

Macromolecule Entities
Molecule Chains Length Organism Details
Voltage-gated potassium channel beta-2 subunit A 333 Rattus norvegicus EC#: 1.1.1 IUBMB
Gene Name(s): Kcnab2 Ckbeta2 Kcnb3
Potassium voltage-gated channel subfamily A member 2 B 499 Rattus norvegicus Gene Name(s): Kcna2
poly-unknown chain C 52 Rattus norvegicus Fragment: T1-S1 linker and S1 helix of the Kv1.2 channel
Details: Chain C consists of a polyglycine model for the T1-S1 linker and a polyalanine model for the S1 helix of Kv1.2.
poly-unknown chain D 21 Rattus norvegicus Fragment: S3 helix of the Kv1.2 channel
Details: Chain D consists of a polyalanine model for the S3 helix of Kv1.2.

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

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

Protein Name: Kv1.2/Kv2.1 Voltage-gated potassium channel chimera


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

A NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE (Synonym)
C21 H28 N7 O17 P3
XJLXINKUBYWONI-NNYOXOHSSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
K
Query on K

B POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
Modified Residues 1 Unique
ID Chains Type Formula 2D Diagram Parent
UNK
Query on UNK
C, D L-PEPTIDE LINKING C4 H9 N O2 --

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.252
  • R-Value Work: 0.222
  • Space Group: I 4
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 113.61 α = 90.00
b = 113.61 β = 90.00
c = 260.47 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2005-07-05
  • Released Date: 2005-07-12
  • Deposition author(s): Long, S.B., Campbell, E.B., MacKinnon, R.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4