2IFC | pdb_00002ifc

The Structure of the Binary Complex of Oxalateacetate with Citrate Synthase from the Thermophilic Archaeon Thermolasma acidophilum

• PDB DOI: https://doi.org/10.2210/pdb2IFC/pdb

• Classification: TRANSFERASE
• Organism(s): Thermoplasma acidophilum
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-09-20 Released: 2007-10-02 
• Deposition Author(s): Lehmann, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 
  0.234 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.181 (Depositor), 0.176 (DCC) 
• R-Value Observed: 
  0.183 (Depositor) 

Starting Model: experimental

Literature

To be anounced

Lehmann, C., Kurz, C., Ellenberger, E.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content 

• Total Structure Weight: 173.03 kDa 
• Atom Count: 14,321 
• Modeled Residue Count: 1,518 
• Deposited Residue Count: 1,540 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Citrate Synthase	A, B, C, D	385	Thermoplasma acidophilum	Mutation(s): 0  Gene Names: gltA EC: 2.3.3.1 (PDB Primary Data), 2.3.3.16 (UniProt)
UniProt
Find proteins for P21553 (Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165)) Explore P21553  Go to UniProtKB:  P21553

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
OAA	E [auth A], F [auth B], G [auth C], H [auth D]	OXALOACETATE ION C4 H3 O5 KHPXUQMNIQBQEV-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free:  0.234 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.181 (Depositor), 0.176 (DCC) 
• R-Value Observed: 0.183 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.526	α = 90
b = 97.447	β = 93.1
c = 106.937	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
CNS	refinement
d*TREK	data scaling
PDB_EXTRACT	data extraction
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-10-02 
Deposition Author(s): Lehmann, C.

Revision History  

• Version 1.0: 2007-10-02
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.2: 2019-07-24
  Changes: Data collection, Refinement description
• Version 1.3: 2024-02-21
  Changes: Data collection, Database references
• Version 1.4: 2024-04-03
  Changes: Refinement description