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Crystal structure of S303A aspergillus terreus aristolochene synthase complexed with (1S,8S,9AR)-1,9A-dimethyl-8-(prop-1-en-2-yl) decahydroquinolizin-5-ium

Analyse Crystal structure of S303A aspergillus terreus aristolochene synthase complexed… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5IMI
Type
protein
Length
1,222 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Aristolochene synthase
EC
4.2.3.9
UniProt
Q9UR08
Ligands
POP, JF1, MG
Pockets
16 · best druggability 0.84

Structure

x-ray diffraction · 3 distinct chains · 74% helix, 0% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, DAristolochene synthase (EC 4.2.3.9)protein30674% helix, 0% strandQ9UR08
BAristolochene synthase (EC 4.2.3.9)protein30674% helix, 0% strandQ9UR08
CAristolochene synthase (EC 4.2.3.9)protein30474% helix, 0% strandQ9UR08

Ligands and binding sites

  • POP · Pyrophosphate 2- · ligand · 4 copies · chains A, B, C, D
  • JF1 · (1S,5S,8S,9aR)-1,9a-dimethyl-8-(prop-1-en-2-yl)octahydro-2H-quinolizinium · ligand · 4 copies · chains A, B, C, D
  • MG · Magnesium ion · metal · 12 copies · chains A, B, C, D
  • GOL · Glycerol · additive · chains A

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

16 pockets found on a 1 Å grid, 10 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12580.840.9641POP, MG, JF1
22680.840.9640POP, MG, JF1
32370.840.9642POP, MG, JF1
42590.830.9541POP, MG, JF1
57060.700.7766empty

Interfaces

4 interfaces between chains.

  • A–B · 277 Ų buried · 1 hydrogen bond · protein-protein
  • B–D · 187 Ų buried · 3 hydrogen bonds · protein-protein
  • B–C · 63 Ų buried · 1 hydrogen bond · protein-protein
  • C–D · 30 Ų buried · 0 hydrogen bonds · protein-protein

Compared structures

  • 5IMI · Crystal structure of S303A Aspergillus terreus aristolochene synthase complexed with… · the same entry in another collection · chain D against D, TM-score 1.00
  • Q9UR08 · AlphaFold monomer V2.0 prediction for aristolochene synthase (Q9UR08) · a predicted model of the same protein · chain B against A, TM-score 1.00

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