1D8A

E. COLI ENOYL REDUCTASE/NAD+/TRICLOSAN COMPLEX

• PDB DOI: https://doi.org/10.2210/pdb1D8A/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Escherichia coli
• Mutation(s): No 


• Deposited: 1999-10-21 Released: 1999-10-28 
• Deposition Author(s): Levy, C.W., Roujeinikova, A., Sedelnikova, S., Baker, P.J., Stuitje, A.R., Slabas, A.R., Rice, D.W., Rafferty, J.B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 
  0.294 (Depositor) 

Literature

Molecular basis of triclosan activity.

Levy, C.W., Roujeinikova, A., Sedelnikova, S., Baker, P.J., Stuitje, A.R., Slabas, A.R., Rice, D.W., Rafferty, J.B.

(1999) Nature 398: 383-384

• PubMed: 10201369 
• DOI: https://doi.org/10.1038/18803
• Primary Citation of Related Structures:  
  1D8A

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 57.43 kDa 
• Atom Count: 4,045 
• Modelled Residue Count: 514 
• Deposited Residue Count: 522 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ENOYL-[ACYL-CARRIER-PROTEIN] REDUCTASE	A, B	261	Escherichia coli	Mutation(s): 0  EC: 1.3.1.9
UniProt
Find proteins for P0AEK4 (Escherichia coli (strain K12)) Explore P0AEK4  Go to UniProtKB:  P0AEK4

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAD	C [auth A], E [auth B]	NICOTINAMIDE-ADENINE-DINUCLEOTIDE C21 H27 N7 O14 P2 BAWFJGJZGIEFAR-NNYOXOHSSA-N
TCL	D [auth A], F [auth B]	TRICLOSAN C12 H7 Cl3 O2 XEFQLINVKFYRCS-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
TCL	BindingDB:  1D8A	Ki: 7.00e-3 (nM) from 1 assay(s)
		IC50: min: 5, max: 900 (nM) from 3 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free:  0.294 (Depositor) 

Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 80.6	α = 90
b = 80.6	β = 90
c = 327.6	γ = 120

Software Package:

Software Name	Purpose
TNT	refinement
DENZO	data reduction
SCALEPACK	data scaling
TNT	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-10-28 
Deposition Author(s): Levy, C.W., Roujeinikova, A., Sedelnikova, S., Baker, P.J., Stuitje, A.R., Slabas, A.R., Rice, D.W., Rafferty, J.B.

Revision History  

• Version 1.0: 1999-10-28
  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: 2024-02-07
  Changes: Data collection, Database references, Derived calculations