1D7O | pdb_00001d7o

CRYSTAL STRUCTURE OF BRASSICA NAPUS ENOYL ACYL CARRIER PROTEIN REDUCTASE COMPLEXED WITH NAD AND TRICLOSAN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 
    0.225 (Depositor), 0.220 (DCC) 
  • R-Value Work: 
    0.162 (Depositor) 

wwPDB Validation 3D Report Full Report

Validation slider image for 1D7O

Ligand Structure Quality Assessment 


This is version 1.5 of the entry. See complete history

Literature

Crystallographic analysis of triclosan bound to enoyl reductase.

Roujeinikova, A.Levy, C.W.Rowsell, S.Sedelnikova, S.Baker, P.J.Minshull, C.A.Mistry, A.Colls, J.G.Camble, R.Stuitje, A.R.Slabas, A.R.Rafferty, J.B.Pauptit, R.A.Viner, R.Rice, D.W.

(1999) J Mol Biology 294: 527-535

  • DOI: https://doi.org/10.1006/jmbi.1999.3240
  • Primary Citation Related Structures: 
    1D7O

  • PubMed Abstract: 

    Molecular genetic studies with strains of Escherichia coli resistant to triclosan, an ingredient of many anti-bacterial household goods, have suggested that this compound works by acting as an inhibitor of enoyl reductase (ENR) and thereby blocking lipid biosynthesis. We present structural analyses correlated with inhibition data, on the complexes of E. coli and Brassica napus ENR with triclosan and NAD(+) which reveal how triclosan acts as a site-directed, picomolar inhibitor of the enzyme by mimicking its natural substrate. Elements of both the protein and the nucleotide cofactor play important roles in triclosan recognition, providing an explanation for the factors controlling its tight binding to the enzyme and for the emergence of triclosan resistance.


  • Organizational Affiliation
    • Krebs Institute for Biomolecular Research, Department of Molecular Biology and Biotechnology, The University of Sheffield, UK.

Macromolecule Content 

  • Total Structure Weight: 32.35 kDa 
  • Atom Count: 2,322 
  • Modeled Residue Count: 297 
  • Deposited Residue Count: 297 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
ENOYL-[ACYL-CARRIER PROTEIN] REDUCTASE (NADH) PRECURSOR297Brassica napusMutation(s): 0 
EC: 1.3.1.9
UniProt
Find proteins for P80030 (Brassica napus)
Explore P80030 
Go to UniProtKB:  P80030
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP80030
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAD

Query on NAD



Download:Ideal Coordinates CCD File
B [auth A]NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
TCL

Query on TCL



Download:Ideal Coordinates CCD File
C [auth A]TRICLOSAN
C12 H7 Cl3 O2
XEFQLINVKFYRCS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free:  0.225 (Depositor), 0.220 (DCC) 
  • R-Value Work:  0.162 (Depositor) 
Space Group: P 42 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.5α = 90
b = 70.5β = 90
c = 118γ = 90
Software Package:
Software NamePurpose
TNTrefinement
MAR345data collection
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 1999-11-08
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2017-02-01
    Changes: Structure summary
  • Version 1.4: 2017-10-04
    Changes: Refinement description
  • Version 1.5: 2024-02-07
    Changes: Data collection, Database references, Derived calculations