1F12

L-3-HYDROXYACYL-COA DEHYDROGENASE COMPLEXED WITH 3-HYDROXYBUTYRYL-COA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.212 

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This is version 1.2 of the entry. See complete history


Literature

Sequestration of the active site by interdomain shifting. Crystallographic and spectroscopic evidence for distinct conformations of L-3-hydroxyacyl-CoA dehydrogenase.

Barycki, J.J.O'Brien, L.K.Strauss, A.W.Banaszak, L.J.

(2000) J Biol Chem 275: 27186-27196

  • DOI: 10.1074/jbc.M004669200
  • Primary Citation of Related Structures:  
    1F12, 1F0Y, 1F17, 1F14

  • PubMed Abstract: 
  • l-3-Hydroxyacyl-CoA dehydrogenase reversibly catalyzes the conversion of l-3-hydroxyacyl-CoA to 3-ketoacyl-CoA concomitant with the reduction of NAD(+) to NADH as part of the beta-oxidation spiral. In this report, crystal structures have been solved for the apoenzyme, binary complexes of the enzyme with reduced cofactor or 3-hydroxybutyryl-CoA substrate, and an abortive ternary complex of the enzyme with NAD(+) and acetoacetyl-CoA ...

    l-3-Hydroxyacyl-CoA dehydrogenase reversibly catalyzes the conversion of l-3-hydroxyacyl-CoA to 3-ketoacyl-CoA concomitant with the reduction of NAD(+) to NADH as part of the beta-oxidation spiral. In this report, crystal structures have been solved for the apoenzyme, binary complexes of the enzyme with reduced cofactor or 3-hydroxybutyryl-CoA substrate, and an abortive ternary complex of the enzyme with NAD(+) and acetoacetyl-CoA. The models illustrate positioning of cofactor and substrate within the active site of the enzyme. Comparison of these structures with the previous model of the enzyme-NAD(+) complex reveals that although significant shifting of the NAD(+)-binding domain relative to the C-terminal domain occurs in the ternary and substrate-bound complexes, there are few differences between the apoenzyme and cofactor-bound complexes. Analysis of these models clarifies the role of key amino acids implicated in catalysis and highlights additional critical residues. Furthermore, a novel charge transfer complex has been identified in the course of abortive ternary complex formation, and its characterization provides additional insight into aspects of the catalytic mechanism of l-3-hydroxyacyl-CoA dehydrogenase.


    Related Citations: 
    • Biochemical Characterization and Crystal Structure Determination of Human Heart Short Chain L-3-hydroxyacyl-CoA Dehydrogenase Provide Insights into Catalytic Mechanism
      Barycki, J.J., O'Brien, L.K., Bratt, J.M., Zhang, R., Sanishvili, R., Strauss, A.W., Banaszak, L.J.
      (1999) Biochemistry 38: 5786

    Organizational Affiliation

    Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
L-3-HYDROXYACYL-COA DEHYDROGENASEA, B310Homo sapiensMutation(s): 1 
Gene Names: HADHHADHAD1HADHSCSCHAD
EC: 1.1.1.35
UniProt & NIH Common Fund Data Resources
Find proteins for Q16836 (Homo sapiens)
Explore Q16836 
Go to UniProtKB:  Q16836
PHAROS:  Q16836
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3HC (Subject of Investigation/LOI)
Query on 3HC

Download Ideal Coordinates CCD File 
C [auth A]3-HYDROXYBUTANOYL-COENZYME A
C25 H42 N7 O18 P3 S
QHHKKMYHDBRONY-VKBDFPRVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.212 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.04α = 90
b = 88.1β = 90
c = 167.22γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-09-27
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance