4cox

CYCLOOXYGENASE-2 (PROSTAGLANDIN SYNTHASE-2) COMPLEXED WITH A NON-SELECTIVE INHIBITOR, INDOMETHACIN

Method: X-RAY DIFFRACTION Dmax: 144.1 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 IMN INDOMETHACIN × 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 2.90 Å R-free 0.309
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 18–604 Chain D; UniProt 18–604 Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 6 HEM PROTOPORPHYRIN IX CONTAINING FE × 2 IMN INDOMETHACIN × 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 2.90 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 69 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 Author chain C; PDBConstruct 1–587; UniProt 18–604 Author chain D; 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 4cox

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4cox
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4cox
Deposition date deposition_date1996-12-18
Structure title titleCYCLOOXYGENASE-2 (PROSTAGLANDIN SYNTHASE-2) COMPLEXED WITH A NON-SELECTIVE INHIBITOR, INDOMETHACIN
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_guinier44.33
Radius of gyration Rg (electron density) rg_electron44.03
Forward intensity I(0) i0926298000.00
Molecular weight molecular_weight259910.0 kDa
Excluded volume excluded_volume327670 ų
Envelope volume envelope_volume408300 ų
Hydration-shell volume shell_volume75579 ų
Envelope diameter envelope_diameter146.8
Shell Rg shell_rg50.62
Envelope Rg envelope_rg43.09
Shape Rg shape_rg44.01
Total Rg total_rg44.38
Total atoms total_atoms18332
Residues n_residues2204
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 dmax144.1
Rg (real space) rg_real44.27
Rg uncertainty (real space) rg_real_error0.98
I(0) (real space) i0_real9.2630e+08
I(0) uncertainty (real space) i0_real_error1.5410e+07
Rg (reciprocal space) rg_reciprocal44.33
I(0) (reciprocal space) i0_reciprocal926400000.0000
Solution quality estimate total_estimate0.8903
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks0
Primary peak position r_peak_primary
Skewness Skewness skewness0.254
Kurtosis Kurtosis kurtosis-0.544
Angular range angular_range— – 0.1800 −1
Current regularization parameter α current_alpha0.0002
Highest regularization parameter α highest_alpha199800000.0000
Real-space data points n_real_points37
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.923; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.800

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd4coxa1
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_idd4coxa2
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_idd4coxb1
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_idd4coxb2
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_idd4coxc1
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_idd4coxc2
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_idd4coxd1
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_idd4coxd2
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 (8 domains)

Domain ID domain_id4coxA01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id4coxA02
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_id4coxB01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id4coxB02
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_id4coxC01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id4coxC02
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_id4coxD01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id4coxD02
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)