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Cyclooxygenase-2 (prostaglandin synthase-2) complexed with a selective inhibitor, sc-558
Analyse Cyclooxygenase-2 (prostaglandin synthase-2) complexed with a selective… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.
- PDB
- 1CX2
- Type
- protein
- Length
- 2,208 residues
- Chains
- 4
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Cyclooxygenase-2
- EC
- 1.14.99.1
- UniProt
- Q05769
- Ligands
- HEM, S58, NAG
- Pockets
- 20 · best druggability 0.80
Structure
x-ray diffraction · 1 distinct chain · 43% helix, 7% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A, B, C, D | Cyclooxygenase-2 (EC 1.14.99.1) | protein | 552 | 43% helix, 7% strand | Q05769 |
Ligands and binding sites
- HEM · Protoporphyrin IX containing Fe · ligand · 4 copies · chains A, B, C, D
- S58 · 1-phenylsulfonamide-3-trifluoromethyl-5-parabromophenylpyrazole · ligand · 4 copies · chains A, B, C, D
- NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 12 copies · chains A, B, C, D
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
20 pockets found on a 1 Å grid, 20 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 1006 | 0.80 | 0.81 | 89 | empty |
| 2 | 681 | 0.80 | 0.85 | 66 | empty |
| 3 | 976 | 0.79 | 0.81 | 90 | empty |
| 4 | 805 | 0.79 | 0.83 | 73 | empty |
| 5 | 197 | 0.78 | 0.93 | 33 | S58 |
Interfaces
3 interfaces between chains.
- C–D · 2445 Ų buried · 52 hydrogen bonds · protein-protein
- A–B · 2424 Ų buried · 52 hydrogen bonds · protein-protein
- A–D · 422 Ų buried · 3 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 20 disulfide, 12 glycan (disulfide, N-glycosylation).
Compared structures
- 1CX2 · Cyclooxygenase-2 (prostaglandin synthase-2) complexed with a selective inhibitor, sc-558 · the same entry in another collection · chain A against A, TM-score 1.00
- Q05769 · AlphaFold monomer V2.0 prediction for prostaglandin G/H synthase 2 (Q05769) · a predicted model of the same protein · chain A against A, TM-score 0.99
Analyse
- Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
- Every structure of UniProt Q05769
- Elsewhere: RCSB PDB 1CX2 · PDBe 1CX2 · UniProt Q05769
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