1MKA

E. COLI BETA-HYDROXYDECANOYL THIOL ESTER DEHYDRASE MODIFIED BY ITS CLASSIC MECHANISM-BASED INACTIVATOR, 3-DECYNOYL-N-ACETYL CYSTEAMINE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.163 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of a dehydratase-isomerase from the bacterial pathway for biosynthesis of unsaturated fatty acids: two catalytic activities in one active site.

Leesong, M.Henderson, B.S.Gillig, J.R.Schwab, J.M.Smith, J.L.

(1996) Structure 4: 253-264

  • Primary Citation of Related Structures:  1MKB

  • PubMed Abstract: 
  • Escherichia coli beta-hydroxydecanoyl thiol ester dehydrase (dehydrase) is essential to the biosynthesis of unsaturated fatty acids, by shunting a 10-carbon intermediate from the saturated fatty acid pathway into the unsaturated fatty acid pathway. D ...

    Escherichia coli beta-hydroxydecanoyl thiol ester dehydrase (dehydrase) is essential to the biosynthesis of unsaturated fatty acids, by shunting a 10-carbon intermediate from the saturated fatty acid pathway into the unsaturated fatty acid pathway. Dehydrase catalyzes reactions of dehydration and of double-bond isomerization on 10-carbon thiol esters of acyl carrier protein (ACP). The aim of this work is to elucidate mechanisms for the two enzymatic reactions, which occur in an unusual bifunctional active site, and to understand the specificity of the enzyme for substrates with 10-carbon fatty acyl chains.


    Organizational Affiliation

    Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BETA-HYDROXYDECANOYL THIOL ESTER DEHYDRASE
A, B
171Escherichia coli (strain K12)Gene Names: fabA
EC: 5.3.3.14, 4.2.1.59
Find proteins for P0A6Q3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6Q3
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DAC
Query on DAC

Download SDF File 
Download CCD File 
A, B
2-DECENOYL N-ACETYL CYSTEAMINE
C14 H25 N O2 S
HYDKTIAWESXLEF-KTKRTIGZSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.163 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 68.000α = 90.00
b = 86.800β = 90.00
c = 60.300γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1996-01-08 
  • Released Date: 1996-07-11 
  • Deposition Author(s): Leesong, M.

Revision History 

  • Version 1.0: 1996-07-11
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance