3kk6

Crystal Structure of Cyclooxygenase-1 in complex with celecoxib

Method: X-RAY DIFFRACTION Dmax: 100.3 Å Quality: EXCELLENT

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

Prostaglandin G/H synthase 1

Ovis aries

UniProt P05979

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Homooligomer Protein × 2 其他Polymer 5 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 32–584 Chain B; UniProt 32–584 Not recorded ;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 ;beta-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 HEM PROTOPORPHYRIN IX CONTAINING FE × 2 CEL 4-[5-(4-METHYLPHENYL)-3-(TRIFLUOROMETHYL)-1H-PYRAZOL-1-YL]BENZENESULFONAMIDE × 2 BOG octyl beta-D-glucopyranoside × 4 FLC CITRATE ANION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 6.5;273 K;SODIUM CITRATE, LITHIUM CHLORIDE, SODIUM AZIDE, N-OCTYL GLUCOSIDE, pH 6.5, vapor diffusion, temperature 273K Resolution 2.75 Å R-free 0.242

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.

20 other PDB entries and 20 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PGH1_SHEEP
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–553; UniProt 32–584 Author chain B; PDBConstruct 1–553; UniProt 32–584

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 3kk6

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3kk6
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3kk6
Deposition date deposition_date2009-11-04
Structure title titleCrystal Structure of Cyclooxygenase-1 in complex with celecoxib
Keywords keywords;cox-1, cyclooxygenase, peroxidase, prostaglandin, heme, celecoxib, merohedral twinned, Dioxygenase, Disulfide bond, EGF-like domain, Endoplasmic reticulum, Fatty acid biosynthesis, Glycoprotein, Iron, Lipid synthesis, Membrane, Metal-binding, Microsome, Oxidoreductase, Prostaglandin biosynthesis, Transmembrane ;; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier32.14
Radius of gyration Rg (electron density) rg_electron31.23
Forward intensity I(0) i0246951000.00
Molecular weight molecular_weight129960.0 kDa
Excluded volume excluded_volume163790 ų
Envelope volume envelope_volume193450 ų
Hydration-shell volume shell_volume49582 ų
Envelope diameter envelope_diameter103.6
Shell Rg shell_rg39.92
Envelope Rg envelope_rg31.18
Shape Rg shape_rg31.23
Total Rg total_rg31.95
Total atoms total_atoms17759
Residues n_residues1106
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 dmax100.3
Rg (real space) rg_real31.99
Rg uncertainty (real space) rg_real_error0.57
I(0) (real space) i0_real2.4700e+08
I(0) uncertainty (real space) i0_real_error3.9840e+06
Rg (reciprocal space) rg_reciprocal32.06
I(0) (reciprocal space) i0_reciprocal247000000.0000
Solution quality estimate total_estimate0.9010
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary38.9
Skewness Skewness skewness0.216
Kurtosis Kurtosis kurtosis-0.482
Angular range angular_range— – 0.2450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha78180000.0000
Real-space data points n_real_points50
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.929; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.992; Smooth: 0.930

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (9)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd3kk6a1
Class classg — Small proteins
Fold Fold foldg.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamilyg.3.11 — EGF/Laminin
Family Family familyg.3.11.1 — EGF-type module
Domain ID domain_idd3kk6a2
Class classa — All alpha proteins
Fold Fold folda.93 — Heme-dependent peroxidases
Superfamily Superfamily superfamilya.93.1 — Heme-dependent peroxidases
Family Family familya.93.1.2 — Myeloperoxidase-like
Domain ID domain_idd3kk6b1
Class classg — Small proteins
Fold Fold foldg.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamilyg.3.11 — EGF/Laminin
Family Family familyg.3.11.1 — EGF-type module
Domain ID domain_idd3kk6b2
Class classa — All alpha proteins
Fold Fold folda.93 — Heme-dependent peroxidases
Superfamily Superfamily superfamilya.93.1 — Heme-dependent peroxidases
Family Family familya.93.1.2 — Myeloperoxidase-like

CATH v4.4 (4 domains)

Domain ID domain_id3kk6A01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id3kk6A02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology640 — Myeloperoxidase, subunit C
Homologous superfamily homologous superfamily10 — Haem peroxidase domain superfamily, animal type
Domain ID domain_id3kk6B01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id3kk6B02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology640 — Myeloperoxidase, subunit C
Homologous superfamily homologous superfamily10 — Haem peroxidase domain superfamily, animal type

8. Citations (1)

9. Files and Curves (10)