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: 2.00 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.163 
  • R-Value Observed: 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

  • DOI: 10.1016/s0969-2126(96)00030-5
  • Primary Citation of Related Structures:  
    1MKB, 1MKA

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BETA-HYDROXYDECANOYL THIOL ESTER DEHYDRASEA, B171Escherichia coliMutation(s): 0 
Gene Names: fabA
EC: 4.2.1.60 (PDB Primary Data), 4.2.1.59 (UniProt), 5.3.3.14 (UniProt)
Find proteins for P0A6Q3 (Escherichia coli (strain K12))
Explore P0A6Q3 
Go to UniProtKB:  P0A6Q3
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DAC
Query on DAC

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: 2.00 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.163 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68α = 90
b = 86.8β = 90
c = 60.3γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
XDSdata reduction
X-PLORphasing

Structure Validation

View Full Validation Report



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
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance