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Crystal structure of the arsenite oxidase protein complex from rhizobium species strain nt-26

Analyse Crystal structure of the arsenite oxidase protein complex from rhizobium… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4AAY
Type
protein
Length
3,900 residues
Chains
8
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Aroa; Arob
UniProt
Q6VAL8, Q6VAL9
Ligands
MGD, F3S, FES, 4MO, O
Pockets
20 · best druggability 0.87

Structure

x-ray diffraction · 2 distinct chains · 30% helix, 22% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, C, E, GAroaprotein84334% helix, 19% strandQ6VAL8
B, D, F, HArobprotein1325% helix, 40% strandQ6VAL9

Ligands and binding sites

  • MGD · 2-amino-5,6-dimercapto-7-methyl-3,7,8A,9-tetrahydro-8-oxa-1,3,9,10-tetraaza-anthracen-4-one guanosine dinucleotide · ligand · 8 copies · chains A, C, E, G
  • F3S · FE3-S4 cluster · ligand · 4 copies · chains A, C, E, G
  • FES · Fe2/s2 (inorganic) cluster · ligand · 4 copies · chains B, D, F, H
  • 4MO · Molybdenum(iv) ion · metal · 4 copies · chains A, C, E, G
  • O · Oxygen atom · ion · 4 copies · chains A, C, E, G

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

Pockets

20 pockets found on a 1 Å grid, 14 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
17930.870.9063empty
210560.860.87104empty
39280.850.87121MGD, O, 4MO
49300.850.86122MGD, O, 4MO
59540.840.86114MGD, O, 4MO

Interfaces

13 interfaces between chains.

  • C–E · 2771 Ų buried · 49 hydrogen bonds · protein-protein
  • E–F · 2395 Ų buried · 51 hydrogen bonds · protein-protein
  • A–B · 2377 Ų buried · 54 hydrogen bonds · protein-protein
  • G–H · 2352 Ų buried · 50 hydrogen bonds · protein-protein
  • C–D · 2339 Ų buried · 50 hydrogen bonds · protein-protein

Compared structures

  • 4AAY · Crystal Structure of the arsenite oxidase protein complex from Rhizobium species strain… · the same entry in another collection · chain A against A, TM-score 1.00

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