1POI

CRYSTAL STRUCTURE OF GLUTACONATE COENZYME A-TRANSFERASE FROM ACIDAMINOCOCCUS FERMENTANS TO 2.55 ANGSTOMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Glutaconate CoA-transferase from Acidaminococcus fermentans: the crystal structure reveals homology with other CoA-transferases.

Jacob, U.Mack, M.Clausen, T.Huber, R.Buckel, W.Messerschmidt, A.

(1997) Structure 5: 415-426


  • PubMed Abstract: 
  • Coenzyme A-transferases are a family of enzymes with a diverse substrate specificity and subunit composition. Members of this group of enzymes are found in anaerobic fermenting bacteria, aerobic bacteria and in the mitochondria of humans and other ma ...

    Coenzyme A-transferases are a family of enzymes with a diverse substrate specificity and subunit composition. Members of this group of enzymes are found in anaerobic fermenting bacteria, aerobic bacteria and in the mitochondria of humans and other mammals, but so far none have been crystallized. A defect in the human gene encoding succinyl-CoA: 3-oxoacid CoA-transferase causes a metabolic disease which leads to severe ketoacidosis, thus reflecting the importance of this family of enzymes. All CoA-transferases share a common mechanism in which the CoA moiety is transferred from a donor (e.g. acetyl CoA) to an acceptor, (R)-2-hydroxyglutarate, whereby acetate is formed. The transfer has been described by a ping-pong mechanism in which CoA is bound to the active-site residue of the enzyme as a covalent thiol ester intermediate. We describe here the crystal structure of glutaconate CoA-transferase (GCT) from the strictly anaerobic bacterium Acidaminococcus fermentans. This enzyme activates (R)-2-hydroxyglutarate to (R)-2-hydroxyglutaryl-CoA in the pathway of glutamate fermentation. We initiated this project to gain further insight into the function of this enzyme and the structural basis for the characteristics of CoA-transferases.


    Organizational Affiliation

    Max Planck Institut für Biochemie, Abteilung Strukturforschung, Am Klopferspitz 18a, D-82152, Martinsried, Germany. ujacob@libelle.biochem.mpg.de




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GLUTACONATE COENZYME A-TRANSFERASE
A, C
317Acidaminococcus fermentans (strain ATCC 25085 / DSM 20731 / VR4)Gene Names: gctA
EC: 2.8.3.12
Find proteins for Q59111 (Acidaminococcus fermentans (strain ATCC 25085 / DSM 20731 / VR4))
Go to UniProtKB:  Q59111
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
GLUTACONATE COENZYME A-TRANSFERASE
B, D
260Acidaminococcus fermentans (strain ATCC 25085 / DSM 20731 / VR4)Gene Names: gctB
EC: 2.8.3.12
Find proteins for Q59112 (Acidaminococcus fermentans (strain ATCC 25085 / DSM 20731 / VR4))
Go to UniProtKB:  Q59112
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CU
Query on CU

Download SDF File 
Download CCD File 
A
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.190 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 145.120α = 90.00
b = 152.270β = 90.00
c = 130.610γ = 90.00
Software Package:
Software NamePurpose
CCP4data scaling
X-PLORrefinement
MOSFLMdata reduction
ROTAVATA)data scaling
X-PLORphasing
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-03-18
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance