3f1q

Human dihydroorotate dehydrogenase in complex with a leflunomide derivative inhibitor 1

Method: X-RAY DIFFRACTION Dmax: 61.0 Å Quality: EXCELLENT

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

Dihydroorotate dehydrogenase

Homo sapiens

UniProt Q02127

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 29–395 Fragment:residues 30-396 FMN FLAVIN MONONUCLEOTIDE × 1 ORO OROTIC ACID × 1 BCE (2Z)-N-biphenyl-4-yl-2-cyano-3-hydroxybut-2-enamide × 1 ACY ACETIC ACID × 2 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.8;293 K;drops: 50mM HEPES, pH 7.7, 400mM NaCl, 30% glycerol, 1mM EDTA, 10mM N,N-dimethylundecylamin-N-oxide (C11DAO), precipitant solution: 0.1M acetate pH 4.6-5.0, 40mM C11DAO, 20.8mM N,N-dimethyldecylamine-N-oxide (DDAO), 2mM dihydroorotate (DHO), 1.8-2.4M ammonium sulfate, 1mM inhibitors, reservoir: 0.1M acetate pH 4.8, 2.4-2.6M ammonium sulfate, 30% glycerol , VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.00 Å R-free 0.199

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.

104 other PDB entries and 106 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PYRD_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–367; UniProt 29–395

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 3f1q

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3f1q
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3f1q
Deposition date deposition_date2008-10-28
Structure title titleHuman dihydroorotate dehydrogenase in complex with a leflunomide derivative inhibitor 1
Keywords keywords;Dihydroorotate dehydrogenase, leflunomide, FAD, Flavoprotein, Membrane, Mitochondrion, Mitochondrion inner membrane, Oxidoreductase, Pyrimidine biosynthesis, Transit peptide ;; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.35
Radius of gyration Rg (electron density) rg_electron19.02
Forward intensity I(0) i028166200.00
Molecular weight molecular_weight40225.0 kDa
Excluded volume excluded_volume50271 ų
Envelope volume envelope_volume56743 ų
Hydration-shell volume shell_volume23708 ų
Envelope diameter envelope_diameter61.8
Shell Rg shell_rg26.54
Envelope Rg envelope_rg19.43
Shape Rg shape_rg19.00
Total Rg total_rg20.04
Total atoms total_atoms2834
Residues n_residues361
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 dmax61.0
Rg (real space) rg_real20.19
Rg uncertainty (real space) rg_real_error0.24
I(0) (real space) i0_real2.8170e+07
I(0) uncertainty (real space) i0_real_error3.1710e+05
Rg (reciprocal space) rg_reciprocal20.22
I(0) (reciprocal space) i0_reciprocal28170000.0000
Solution quality estimate total_estimate0.9022
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.1
Skewness Skewness skewness0.060
Kurtosis Kurtosis kurtosis-0.493
Angular range angular_range— – 0.3900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha8274000.0000
Real-space data points n_real_points71
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.924; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.969; Smooth: 0.985

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3f1qa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.4 — FMN-linked oxidoreductases
Family Family familyc.1.4.1 — FMN-linked oxidoreductases

CATH v4.4 (1 domains)

Domain ID domain_id3f1qA00
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I

8. Citations (1)

9. Files and Curves (10)