2ikg

Aldose reductase complexed with nitrophenyl-oxadiazol type inhibitor at 1.43 A

Method: X-RAY DIFFRACTION Dmax: 62.1 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Aldose reductase

Homo sapiens

UniProt P15121

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 0–315 Not recorded NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 1 BTO 4-[3-(3-NITROPHENYL)-1,2,4-OXADIAZOL-5-YL]BUTANOIC ACID × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5;293 K;20% PEG 6000, 120mM ammonium citrate, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.43 Å R-free 0.200

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

169 other PDB entries and 173 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ALDR_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–316; UniProt 0–315

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 2ikg

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2ikg
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id2ikg
Deposition date deposition_date2006-10-02
Structure title titleAldose reductase complexed with nitrophenyl-oxadiazol type inhibitor at 1.43 A
Keywords keywordsTIM barrel, inhibitor complex, aldose reductase, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier19.86
Radius of gyration Rg (electron density) rg_electron18.68
Forward intensity I(0) i022659500.00
Molecular weight molecular_weight36872.0 kDa
Excluded volume excluded_volume46329 ų
Envelope volume envelope_volume50640 ų
Hydration-shell volume shell_volume21908 ų
Envelope diameter envelope_diameter64.1
Shell Rg shell_rg25.82
Envelope Rg envelope_rg19.03
Shape Rg shape_rg18.67
Total Rg total_rg19.64
Total atoms total_atoms2593
Residues n_residues316
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax62.1
Rg (real space) rg_real19.71
Rg uncertainty (real space) rg_real_error0.32
I(0) (real space) i0_real2.2660e+07
I(0) uncertainty (real space) i0_real_error2.7950e+05
Rg (reciprocal space) rg_reciprocal19.73
I(0) (reciprocal space) i0_reciprocal22660000.0000
Solution quality estimate total_estimate0.8973
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.4
Skewness Skewness skewness0.139
Kurtosis Kurtosis kurtosis-0.456
Angular range angular_range— – 0.4000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6447000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.892; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.993; Smooth: 0.992

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2ikga_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.7 — NAD(P)-linked oxidoreductase
Family Family familyc.1.7.1 — Aldo-keto reductases (NADP)

CATH v4.4 (1 domains)

Domain ID domain_id2ikgA00
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily100 — NADP-dependent oxidoreductase domain

8. Citations (1)

9. Files and Curves (10)