2R26

The Structure of the Ternary Complex of Carboxymethyl Coenzyme A and Oxalateacetate with Citrate Synthase from the Thermophilic Archaeonthermoplasma Acidophilum

• PDB DOI: https://doi.org/10.2210/pdb2R26/pdb

• Classification: TRANSFERASE
• Organism(s): Thermoplasma acidophilum
• Mutation(s): No 


• Deposited: 2007-08-24 Released: 2008-08-12 
• Deposition Author(s): Lehmann, C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.261 
• R-Value Work: 0.200 
• R-Value Observed: 0.203 

Starting Model: experimental

Literature

The Structure of the Ternary Complex of Carboxymethyl Coenzyme A and Oxalateacetate with Citrate Synthase from the Thermophilic Archaeonthermoplasma Acidophilum

Lehmann, C., Ellenberger, T.E., Kurz, L.C.

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 (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 (software)

Macromolecule Content

• Total Structure Weight: 175.81 kDa 
• Atom Count: 13,168 
• Modelled Residue Count: 1,519 
• Deposited Residue Count: 1,536 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Citrate Synthase	A, B, C, D	384	Thermoplasma acidophilum	Mutation(s): 0  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 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CMC	F [auth A], H [auth B], J [auth C], L [auth D]	CARBOXYMETHYL COENZYME *A C23 H38 N7 O18 P3 S OBUOSIHPWVNVJN-GRFIIANRSA-N
OAA	E [auth A], G [auth B], I [auth C], K [auth D]	OXALOACETATE ION C4 H3 O5 KHPXUQMNIQBQEV-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.261 
• R-Value Work: 0.200 
• R-Value Observed: 0.203 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.705	α = 99.34
b = 74.221	β = 98.34
c = 89.874	γ = 114.38

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-08-12 
Deposition Author(s): Lehmann, C.

Revision History  

• Version 1.0: 2008-08-12
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2024-02-21
  Changes: Data collection, Database references, Derived calculations
• Version 1.3: 2024-04-03
  Changes: Refinement description