3V35

Aldose reductase complexed with a nitro compound

• PDB DOI: https://doi.org/10.2210/pdb3V35/pdb

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


• Deposited: 2011-12-13 Released: 2012-08-29 
• Deposition Author(s): Zheng, X., Zhang, L., Chen, Y., Luo, H., Hu, X.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.183 
• R-Value Work: 0.143 
• R-Value Observed: 0.145 

Literature

Partial inhibition of aldose reductase by nitazoxanide and its molecular basis.

Zheng, X., Zhang, L., Chen, W., Chen, Y., Xie, W., Hu, X.

(2012) ChemMedChem 7: 1921-1923

• PubMed: 22890894 
• DOI: https://doi.org/10.1002/cmdc.201200333
• Primary Citation of Related Structures:  
  3V35, 3V36


• PubMed Abstract: 
  

  A little is more than enough: Aldose reductase (AR) is a potential target in a wide range of diseases but its utility may be limited by the side effects caused by complete inhibition. Furthermore, known inhibitors of AR have suffered in clinical evaluation due to poor bioavailability. Here, the clinically used antiprotozoal drug nitazoxanide with proven bioavailability has been shown to partially inhibit AR, potentially circumventing the negatives effects of complete enzyme inhibition.

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Organizational Affiliation: 

School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006 (China).

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 40.8 kDa 
• Atom Count: 2,985 
• Modelled Residue Count: 316 
• Deposited Residue Count: 336 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Aldose reductase	A	336	Homo sapiens	Mutation(s): 0  Gene Names: AKR1B1, ALDR1 EC: 1.1.1.21
UniProt & NIH Common Fund Data Resources
Find proteins for P15121 (Homo sapiens) Explore P15121  Go to UniProtKB:  P15121
PHAROS:  P15121 GTEx:  ENSG00000085662

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAP	B [auth A]	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE C21 H28 N7 O17 P3 XJLXINKUBYWONI-NNYOXOHSSA-N
NTI	C [auth A]	2-[(5-nitro-1,3-thiazol-2-yl)carbamoyl]phenyl acetate C12 H9 N3 O5 S YQNQNVDNTFHQSW-UHFFFAOYSA-N
DMF	D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A], N [auth A], O [auth A], P [auth A], Q [auth A], R [auth A], S [auth A], T [auth A], U [auth A], V [auth A], W [auth A], X [auth A], Y [auth A], Z [auth A]	DIMETHYLFORMAMIDE C3 H7 N O ZMXDDKWLCZADIW-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
NTI	Binding MOAD:  3V35	Ki: 1.36e+4 (nM) from 1 assay(s)
	BindingDB:  3V35	IC50: 8220 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.183 
• R-Value Work: 0.143 
• R-Value Observed: 0.145 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.927	α = 90
b = 68.158	β = 93.75
c = 48.934	γ = 90

Software Package:

Software Name	Purpose
CrysalisPro	data collection
MOLREP	phasing
PHENIX	refinement
CrysalisPro	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-08-29 
Deposition Author(s): Zheng, X., Zhang, L., Chen, Y., Luo, H., Hu, X.

Revision History  

• Version 1.0: 2012-08-29
  Type: Initial release
  
• Version 1.1: 2014-07-23
  Changes: Database references
• Version 1.2: 2023-11-08
  Changes: Data collection, Database references, Derived calculations, Refinement description