1IKA

STRUCTURE OF ISOCITRATE DEHYDROGENASE WITH ALPHA-KETOGLUTARATE AT 2.7 ANGSTROMS RESOLUTION: CONFORMATIONAL CHANGES INDUCED BY DECARBOXYLATION OF ISOCITRATE

Structural Biology Knowledgebase: 1IKA SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Observed: 0.185

Literature

Macromolecules
Sequence Display for 1IKA

Classification: OXIDOREDUCTASE(NAD(A)-CHOH(D))

Total Structure Weight: 45996.20

Macromolecule Entities
Molecule Chains Length Organism Details
ISOCITRATE DEHYDROGENASE A 416 Escherichia coli EC#: 1.1.1.42 IUBMB
Gene Name(s): icd icdA icdE b1136 JW1122
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

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

A 2-OXOGLUTARIC ACID
C5 H6 O5
KPGXRSRHYNQIFN-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CA
Query on CA

A CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Observed: 0.185
  • Space Group: P 43 21 2

Unit Cell:

Length (Å) Angle (°)
a = 105.10 α = 90.00
b = 105.10 β = 90.00
c = 150.30 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1993-06-15
  • Released Date: 1994-07-31
  • Deposition author(s): Stoddard, B.L., Koshland Junior, D.E.

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