6cox

CYCLOOXYGENASE-2 (PROSTAGLANDIN SYNTHASE-2) COMPLEXED WITH A SELECTIVE INHIBITOR, SC-558 IN I222 SPACE GROUP

Method: X-RAY DIFFRACTION Dmax: 99.3 Å Quality: GOOD

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

CYCLOOXYGENASE-2

Mus musculus

UniProt Q05769

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 18–604 Chain B; UniProt 18–604 Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 6 HEM PROTOPORPHYRIN IX CONTAINING FE × 2 S58 1-PHENYLSULFONAMIDE-3-TRIFLUOROMETHYL-5-PARABROMOPHENYLPYRAZOLE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 8;20 MM SODIUM PHOSPHATE, 100 MM NACL, 0.6% BETA- OCTYLGLUCOSIDE, 10 MG/ML PROTEIN, 1MM INHIBITOR MIXED WITH A RESERVOIR SOLUTION CONTAINING 20-34% MONOMETHYL PEG 550, 10-240 MGCL2, 50 MM EPPS PH 8.0 IN THE RATIO OF 1:1 Resolution 2.80 Å R-free 0.309

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.

47 other PDB entries and 70 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PGH2_MOUSE
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–587; UniProt 18–604 Author chain B; PDBConstruct 1–587; UniProt 18–604

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 6cox

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6cox
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6cox
Deposition date deposition_date1996-12-18
Structure title titleCYCLOOXYGENASE-2 (PROSTAGLANDIN SYNTHASE-2) COMPLEXED WITH A SELECTIVE INHIBITOR, SC-558 IN I222 SPACE GROUP
Keywords keywords;PEROXIDASE, DIOXYGENASE, CYCLOOXYGENASE, NONSTEROIDAL ANTIINFLAMMATORY DRUGS, INFLAMMATION, ARTHRITIS, PROSTAGLANDIN, PROSTAGLANDIN SYNTHASE, OXIDOREDUCTASE ;; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier32.03
Radius of gyration Rg (electron density) rg_electron31.18
Forward intensity I(0) i0250725000.00
Molecular weight molecular_weight130130.0 kDa
Excluded volume excluded_volume163790 ų
Envelope volume envelope_volume191470 ų
Hydration-shell volume shell_volume49285 ų
Envelope diameter envelope_diameter103.1
Shell Rg shell_rg39.94
Envelope Rg envelope_rg31.01
Shape Rg shape_rg31.16
Total Rg total_rg31.95
Total atoms total_atoms9168
Residues n_residues1102
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 dmax99.3
Rg (real space) rg_real31.87
Rg uncertainty (real space) rg_real_error0.52
I(0) (real space) i0_real2.5070e+08
I(0) uncertainty (real space) i0_real_error3.5970e+06
Rg (reciprocal space) rg_reciprocal31.94
I(0) (reciprocal space) i0_reciprocal250700000.0000
Solution quality estimate total_estimate0.8312
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary38.5
Skewness Skewness skewness0.201
Kurtosis Kurtosis kurtosis-0.502
Angular range angular_range— – 0.2450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha63460000.0000
Real-space data points n_real_points50
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.937; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd6coxa1
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_idd6coxa2
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_idd6coxb1
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_idd6coxb2
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

CATH v4.4 (4 domains)

Domain ID domain_id6coxA01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id6coxA02
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_id6coxB01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id6coxB02
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 (2)

9. Files and Curves (10)