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- PDB-2iq0: Crystal Structure of Aldose Reductase complexed with Hexanoic Acid -

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Basic information

Entry
Database: PDB / ID: 2iq0
TitleCrystal Structure of Aldose Reductase complexed with Hexanoic Acid
ComponentsAldose reductase
KeywordsOXIDOREDUCTASE / TIM-Barrel / ARI / aldo-keto reductase
Function / homology
Function and homology information


glyceraldehyde oxidoreductase activity / Fructose biosynthesis / fructose biosynthetic process / L-glucuronate reductase activity / aldose reductase / D/L-glyceraldehyde reductase / glycerol dehydrogenase (NADP+) activity / C21-steroid hormone biosynthetic process / Pregnenolone biosynthesis / NADP-retinol dehydrogenase ...glyceraldehyde oxidoreductase activity / Fructose biosynthesis / fructose biosynthetic process / L-glucuronate reductase activity / aldose reductase / D/L-glyceraldehyde reductase / glycerol dehydrogenase (NADP+) activity / C21-steroid hormone biosynthetic process / Pregnenolone biosynthesis / NADP-retinol dehydrogenase / allyl-alcohol dehydrogenase / allyl-alcohol dehydrogenase activity / L-ascorbic acid biosynthetic process / metanephric collecting duct development / prostaglandin H2 endoperoxidase reductase activity / regulation of urine volume / all-trans-retinol dehydrogenase (NADP+) activity / daunorubicin metabolic process / doxorubicin metabolic process / retinal dehydrogenase activity / epithelial cell maturation / aldose reductase (NADPH) activity / retinoid metabolic process / cellular hyperosmotic salinity response / renal water homeostasis / carbohydrate metabolic process / electron transfer activity / negative regulation of apoptotic process / extracellular space / extracellular exosome / nucleoplasm / cytosol
Similarity search - Function
Aldo/keto reductase family putative active site signature. / Aldo/keto reductase family signature 1. / NADP-dependent oxidoreductase domain / Aldo/keto reductase family signature 2. / Aldo/keto reductase, conserved site / Aldo-keto reductase / NADP-dependent oxidoreductase domain / Aldo/keto reductase family / NADP-dependent oxidoreductase domain superfamily / TIM Barrel ...Aldo/keto reductase family putative active site signature. / Aldo/keto reductase family signature 1. / NADP-dependent oxidoreductase domain / Aldo/keto reductase family signature 2. / Aldo/keto reductase, conserved site / Aldo-keto reductase / NADP-dependent oxidoreductase domain / Aldo/keto reductase family / NADP-dependent oxidoreductase domain superfamily / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
HEXANOIC ACID / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / Aldo-keto reductase family 1 member B1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / FOURIER SYNTHESIS / Resolution: 1.95 Å
AuthorsHarrison, D.H.T. / Brownlee, J.M.
CitationJournal: Bioorg.Chem. / Year: 2006
Title: Structural and thermodynamic studies of simple aldose reductase-inhibitor complexes.
Authors: Brownlee, J.M. / Carlson, E. / Milne, A.C. / Pape, E. / Harrison, D.H.
History
DepositionOct 12, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 28, 2006Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 18, 2017Group: Refinement description / Category: software
Item: _software.classification / _software.contact_author ..._software.classification / _software.contact_author / _software.contact_author_email / _software.date / _software.language / _software.location / _software.name / _software.type / _software.version
Revision 1.4Aug 30, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Aldose reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)36,6273
Polymers35,7671
Non-polymers8602
Water2,972165
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)49.988, 66.984, 91.935
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Aldose reductase / AR / Aldehyde reductase


Mass: 35767.145 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: AKR1B1, ALDR1 / Plasmid: pET / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: P15121, aldose reductase
#2: Chemical ChemComp-NAP / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE


Mass: 743.405 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C21H28N7O17P3
#3: Chemical ChemComp-6NA / HEXANOIC ACID


Mass: 116.158 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H12O2
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 165 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.15 Å3/Da / Density % sol: 42.8 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 5
Details: 20 % PEG 6000, 50 mM Citrate, subsequent glutaraldehyde x-linking, ligand soaking, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 277 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IIC / Detector: IMAGE PLATE / Date: Oct 14, 1999 / Details: mirrors
RadiationMonochromator: graphite / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.95→30 Å / Num. all: 23176 / Num. obs: 20674 / % possible obs: 89.2 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 2.5 % / Rmerge(I) obs: 0.053 / Χ2: 2.887 / Net I/σ(I): 21.3
Reflection shellResolution: 1.95→2 Å / Redundancy: 2.2 % / Rmerge(I) obs: 0.089 / Mean I/σ(I) obs: 16.1 / Num. unique all: 1263 / Χ2: 2.545 / % possible all: 82

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Processing

Software
NameVersionClassificationNB
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACT2data extraction
HKL-2000data collection
d*TREKdata reduction
X-PLORphasing
X-PLOR3.851refinement
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: PDB ENTRY 1AZ1

1az1


Resolution: 1.95→30 Å / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.2522 1219 -random
Rwork0.1897 ---
all0.193 23176 --
obs0.193 20667 89.2 %-
Displacement parametersBiso mean: 16.38 Å2
Refinement stepCycle: LAST / Resolution: 1.95→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2512 0 56 165 2733
LS refinement shellResolution: 1.95→2.04 Å
RfactorNum. reflection% reflection
Rfree0.2949 138 -
Rwork0.2731 --
obs-2341 82 %

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