1AI2

ISOCITRATE DEHYDROGENASE COMPLEXED WITH ISOCITRATE, NADP+, AND CALCIUM (FLASH-COOLED)

Structural Biology Knowledgebase: 1AI2 SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.215
  • R-Value Work: 0.191

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 1AI2

Classification: OXIDOREDUCTASE

Total Structure Weight: 46784.63

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
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)
ICA
Query on ICA

A ISOCITRATE CALCIUM COMPLEX
C6 H7 Ca O7
AHEGTOWQUJMCIO-MASXSRPFDD
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
NAP N/A in BindingDB
Ki: 2700 nM  BindingMOAD
N/A in PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.215
  • R-Value Work: 0.191
  • Space Group: P 43 21 2

Unit Cell:

Length (Å) Angle (°)
a = 102.30 α = 90.00
b = 102.30 β = 90.00
c = 150.50 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1997-04-30
  • Released Date: 1997-10-15
  • Deposition author(s): Stoddard, B.L., Mesecar, A., Koshland Junior, D.E.
  • Previous versions: 1IKB

Revision History

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