1CSI

A very short hydrogen bond provides only moderate stabilization of an enzyme: inhibitor complex of citrate synthase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Observed: 0.156

Literature

Macromolecules
Sequence Display for 1CSI

Classification: LYASE(OXO-ACID)

Total Structure Weight: 49099.50

Macromolecule Entities
Molecule Chains Length Organism Details
CITRATE SYNTHASE A 435 Gallus gallus EC#: 2.3.3.1 IUBMB
Mutation: I9V, D12S, V32A, M41S, V52I, Y69F, M77L, K82G, E104P, L110V, H163N, L170F, I171V, C175A, E196A, A222P, V283L, T286S, E291D, V292L, K294A, V296A, H343S, D428A, I431E
Gene Name(s): CS Gene View
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

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

A CARBOXYMETHYLDETHIA COENZYME *A
C23 H38 N7 O18 P3
SKRDARVCOPFVCP-GRFIIANRSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
OAA
Query on OAA

A OXALOACETATE ION
C4 H3 O5
KHPXUQMNIQBQEV-UHFFFAOYSA-M
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
CMX N/A in BindingDB
Ki: 1.6 nM  BindingMOAD
Ki: 1.6 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Observed: 0.156
  • Space Group: C 1 2 1

Unit Cell:

Length (Å) Angle (°)
a = 104.40 α = 90.00
b = 78.50 β = 78.90
c = 58.50 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1994-03-07
  • Released Date: 1994-04-30
  • Deposition author(s): Usher, K.C., Remington, S.J.

Revision History

  • 2008-03-03
    Type: Version format compliance
  • 2011-07-13
    Type: Version format compliance