3CTS

CRYSTALLOGRAPHIC REFINEMENT AND ATOMIC MODELS OF TWO DIFFERENT FORMS OF CITRATE SYNTHASE AT 2.7 AND 1.7 ANGSTROMS RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb3CTS/pdb

• Classification: OXO-ACID-LYASE
• Organism(s): Gallus gallus
• Mutation(s): No 


• Deposited: 1984-01-27 Released: 1984-07-20 
• Deposition Author(s): Remington, S., Wiegand, G., Huber, R.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Work: 0.192 

Literature

Crystallographic refinement and atomic models of two different forms of citrate synthase at 2.7 and 1.7 A resolution.

Remington, S., Wiegand, G., Huber, R.

(1982) J Mol Biol 158: 111-152

• PubMed: 7120407 
• DOI: https://doi.org/10.1016/0022-2836(82)90452-1
• Primary Citation of Related Structures:  
  1CTS, 2CTS, 3CTS

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)

Macromolecule Content

• Total Structure Weight: 38.17 kDa 
• Atom Count: 3,469 
• Modelled Residue Count: 432 
• Deposited Residue Count: 437 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CITRATE SYNTHASE	A	437	Gallus gallus	Mutation(s): 0  EC: 4.1.3.7

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
COA	B [auth A]	COENZYME A C21 H36 N7 O16 P3 S RGJOEKWQDUBAIZ-IBOSZNHHSA-N
CIT	C [auth A]	CITRIC ACID C6 H8 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Work: 0.192 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.14	α = 90
b = 78.25	β = 78.5
c = 58.4	γ = 90

Software Package:

Software Name	Purpose
EREF	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1984-07-20 
Deposition Author(s): Remington, S., Wiegand, G., Huber, R.

Revision History  

• Version 1.0: 1984-07-20
  Type: Initial release
  
• Version 1.1: 2008-03-25
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2017-11-29
  Changes: Advisory, Derived calculations, Other
• Version 1.4: 2024-02-21
  Changes: Advisory, Data collection, Database references, Derived calculations