1I2Z

E. COLI ENOYL REDUCTASE IN COMPLEX WITH NAD AND BRL-12654

• PDB DOI: https://doi.org/10.2210/pdb1I2Z/pdb

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


• Deposited: 2001-02-12 Released: 2002-02-12 
• Deposition Author(s): Heerding, D.A., Miller, W.H., Payne, D.J., Janson, C.A., Qiu, X.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 
  0.273 (Depositor) 
• R-Value Work: 
  0.191 (Depositor) 

Literature

1,4-Disubstituted imidazoles are potential antibacterial agents functioning as inhibitors of enoyl acyl carrier protein reductase (FabI).

Heerding, D.A., Chan, G., DeWolf, W.E., Fosberry, A.P., Janson, C.A., Jaworski, D.D., McManus, E., Miller, W.H., Moore, T.D., Payne, D.J., Qiu, X., Rittenhouse, S.F., Slater-Radosti, C., Smith, W., Takata, D.T., Vaidya, K.S., Yuan, C.C., Huffman, W.F.

(2001) Bioorg Med Chem Lett 11: 2061-2065

• PubMed: 11514139 
• DOI: https://doi.org/10.1016/s0960-894x(01)00404-8
• Primary Citation of Related Structures:  
  1I2Z


• PubMed Abstract: 
  

  1,4-Disubstituted imidazole inhibitors of Staphylococcus aureus and Escherichia coli enoyl acyl carrier protein reductase (FabI) have been identified. Crystal structure data shows the inhibitor 1 bound in the enzyme active site of E. coli FabI.

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Organizational Affiliation: 

GlaxoSmithKline Pharmaceuticals, Antibacterials and Host Defense, 1250 S. Collegeville Road, Collegeville, PA 19426, USA. [e-mail]

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: 57.62 kDa 
• Atom Count: 4,041 
• Modelled Residue Count: 514 
• Deposited Residue Count: 524 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ENOYL-[ACYL-CARRIER-PROTEIN] REDUCTASE [NADH]	A, B	262	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
654	D [auth A], F [auth B]	4-(2-THIENYL)-1-(4-METHYLBENZYL)-1H-IMIDAZOLE C15 H14 N2 S UMOFOLLUKPBVQG-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
654	BindingDB:  1I2Z	IC50: 1.37e+4 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free:  0.273 (Depositor) 
• R-Value Work:  0.191 (Depositor) 

Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 79.58	α = 90
b = 79.58	β = 90
c = 323.39	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-02-12 
Deposition Author(s): Heerding, D.A., Miller, W.H., Payne, D.J., Janson, C.A., Qiu, X.

Revision History  

• Version 1.0: 2002-02-12
  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: 2018-10-03
  Changes: Advisory, Data collection
• Version 1.4: 2024-02-07
  Changes: Advisory, Data collection, Database references, Derived calculations