3OYZ

Haloferax volcanii Malate Synthase Pyruvate/Acetyl-CoA Ternary Complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.205 

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This is version 1.2 of the entry. See complete history. 


Literature

Crystal structures of a halophilic archaeal malate synthase from Haloferax volcanii and comparisons with isoforms A and G.

Bracken, C.D., Neighbor, A.M., Lamlenn, K.K., Thomas, G.C., Schubert, H.L., Whitby, F.G., Howard, B.R.

(2011) BMC Struct Biol 11: 23-23

  • DOI: 10.1186/1472-6807-11-23
  • Primary Citation of Related Structures:  
    3OYX, 3OYZ, 3PUG

  • PubMed Abstract: 

    • Malate synthase, one of the two enzymes unique to the glyoxylate cycle, is found in all three domains of life, and is crucial to the utilization of two-carbon compounds for net biosynthetic pathways such as gluconeogenesis. In addition to the main isoforms A and G, so named because of their differential expression in E ...

    Malate synthase, one of the two enzymes unique to the glyoxylate cycle, is found in all three domains of life, and is crucial to the utilization of two-carbon compounds for net biosynthetic pathways such as gluconeogenesis. In addition to the main isoforms A and G, so named because of their differential expression in E. coli grown on either acetate or glycolate respectively, a third distinct isoform has been identified. These three isoforms differ considerably in size and sequence conservation. The A isoform (MSA) comprises ~530 residues, the G isoform (MSG) is ~730 residues, and this third isoform (MSH-halophilic) is ~430 residues in length. Both isoforms A and G have been structurally characterized in detail, but no structures have been reported for the H isoform which has been found thus far only in members of the halophilic Archaea.

    Organizational Affiliation: 

    Department of Physical Science, Southern Utah University, Cedar City, UT 84720-2470, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Malate SynthaseA433Haloferax volcanii DS2Mutation(s): 0 
Gene Names: aceB, aceB1, HVO_1983, C498_05196
EC: 2.3.3.9
Find proteins for D4GTL2 (Haloferax volcanii (strain ATCC 29605 / DSM 3757 / JCM 8879 / NBRC 14742 / NCIMB 2012 / VKM B-1768 / DS2))
Explore D4GTL2 
Go to UniProtKB:  D4GTL2
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACO
Query on ACO
Download Ideal Coordinates CCD File 
 B [auth A]ACETYL COENZYME *A
C23 H38 N7 O17 P3 S
ZSLZBFCDCINBPY-ZSJPKINUSA-N		 Ligand Interaction
PO4
Query on PO4
Download Ideal Coordinates CCD File 
 L [auth A]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K		 Ligand Interaction
PYR
Query on PYR
Download Ideal Coordinates CCD File 
 C [auth A]PYRUVIC ACID
C3 H4 O3
LCTONWCANYUPML-UHFFFAOYSA-N		 Ligand Interaction
K
Query on K
Download Ideal Coordinates CCD File 
 E [auth A], F [auth A], G [auth A]POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N		 Ligand Interaction
CL
Query on CL
Download Ideal Coordinates CCD File 
 H [auth A], I [auth A], J [auth A], K [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M		 Ligand Interaction
MG
Query on MG
Download Ideal Coordinates CCD File 
 D [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.205 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 154.788α = 90
b = 154.788β = 90
c = 142.144γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
SOLVEphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-06-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2018-01-24
    Changes: Structure summary