2FIE

Structure of human liver FBPase complexed with potent benzoxazole allosteric inhibitors

• PDB DOI: https://doi.org/10.2210/pdb2FIE/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2005-12-29 Released: 2006-02-21 
• Deposition Author(s): Abad-Zapatero, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.81 Å
• R-Value Free: 0.266 
• R-Value Work: 0.197 
• R-Value Observed: 0.230 

Starting Model: experimental

Literature

Benzoxazole benzenesulfonamides as allosteric inhibitors of fructose-1,6-bisphosphatase.

Lai, C., Gum, R.J., Daly, M., Fry, E.H., Hutchins, C., Abad-Zapatero, C., von Geldern, T.W.

(2006) Bioorg Med Chem Lett 16: 1807-1810

• PubMed: 16446092 
• DOI: https://doi.org/10.1016/j.bmcl.2006.01.014
• Primary Citation of Related Structures:  
  2FIE, 2FIX


• PubMed Abstract: 
  

  A series of novel benzoxazole benzenesulfonamides was synthesized as inhibitors of fructose-1,6-bisphosphatase (FBPase-1). Extensive SAR studies led to a potent inhibitor, 53, with an IC(50) of 0.57microM. Compound 17 exhibited excellent bioavailability and a good pharmacokinetic profile in rats.

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Organizational Affiliation: 

Metabolic Disease Research, GPRD, Abbott Laboratories, 100 Abbott Park Road, Abbott Park, IL 60064, 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 (software)

Macromolecule Content

• Total Structure Weight: 149.36 kDa 
• Atom Count: 9,972 
• Modelled Residue Count: 1,276 
• Deposited Residue Count: 1,352 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fructose-1,6-bisphosphatase 1	A, B [auth D], C [auth H], D [auth L]	338	Homo sapiens	Mutation(s): 1  EC: 3.1.3.11
UniProt & NIH Common Fund Data Resources
Find proteins for P09467 (Homo sapiens) Explore P09467  Go to UniProtKB:  P09467
PHAROS:  P09467 GTEx:  ENSG00000165140

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A74	E [auth A], F [auth D], G [auth H], H [auth L]	2,5-DICHLORO-N-[5-METHOXY-7-(6-METHOXYPYRIDIN-3-YL)-1,3-BENZOXAZOL-2-YL]BENZENESULFONAMIDE C20 H15 Cl2 N3 O5 S KOKQLKWXOFRTHE-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
A74	PDBBind:  2FIE	IC50: 3500 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.81 Å
• R-Value Free: 0.266 
• R-Value Work: 0.197 
• R-Value Observed: 0.230 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.369	α = 90
b = 83.327	β = 90
c = 277.556	γ = 90

Software Package:

Software Name	Purpose
CNX	refinement
XDS	data reduction
HKL-2000	data scaling
CNX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-02-21 
Deposition Author(s): Abad-Zapatero, C.

Revision History  

• Version 1.0: 2006-02-21
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-18
  Changes: Refinement description
• Version 1.4: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description