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Crystal structure of schistosoma mansoni purine nucleoside phosphorylase in complex with inosine

Analyse Crystal structure of schistosoma mansoni purine nucleoside phosphorylase in… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
3FAZ
Type
protein
Length
850 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Purine-nucleoside phosphorylase
EC
2.4.2.1
UniProt
Q9BMI9
Ligands
NOS, SO4
Pockets
5 · best druggability 0.74

Structure

x-ray diffraction · 3 distinct chains · 36% helix, 24% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
APurine-nucleoside phosphorylase (EC 2.4.2.1)protein28236% helix, 24% strandQ9BMI9
BPurine-nucleoside phosphorylase (EC 2.4.2.1)protein28336% helix, 24% strandQ9BMI9
CPurine-nucleoside phosphorylase (EC 2.4.2.1)protein28535% helix, 25% strandQ9BMI9

Ligands and binding sites

  • NOS · Inosine · ligand · 3 copies · chains A, B, C
  • SO4 · Sulfate ion · ion · 2 copies · chains A, C

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

Pockets

5 pockets found on a 1 Å grid, 5 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
1640.740.9820empty
23950.670.8045NOS, SO4
34020.660.7942NOS
43140.630.7935NOS, SO4
53970.590.7666empty

Interfaces

3 interfaces between chains.

  • A–C · 1287 Ų buried · 16 hydrogen bonds · protein-protein
  • B–C · 1273 Ų buried · 15 hydrogen bonds · protein-protein
  • A–B · 1232 Ų buried · 15 hydrogen bonds · protein-protein

Compared structures

  • 3FAZ · Crystal structure of Schistosoma mansoni purine nucleoside phosphorylase in complex with… · the same entry in another collection · chain A against A, TM-score 1.00

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