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Crystal structure of prolyl-tRNA synthetase (prors, proline--tRNA ligase) from plasmodium falciparum in complex with glyburide

Analyse Crystal structure of prolyl-tRNA synthetase (prors, proline--tRNA ligase) from… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5IFU
Type
protein
Length
883 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Proline--tRNA ligase
EC
6.1.1.15
UniProt
Q8I5R7
Ligands
GBM, CL
Pockets
11 · best druggability 0.75

Structure

x-ray diffraction · 2 distinct chains · 37% helix, 27% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AProline--tRNA ligase (EC 6.1.1.15)protein43837% helix, 28% strandQ8I5R7
BProline--tRNA ligase (EC 6.1.1.15)protein44537% helix, 27% strandQ8I5R7

Ligands and binding sites

  • GBM · 5-chloro-N-(2-{4-[(cyclohexylcarbamoyl) sulfamoyl]phenyl}ethyl)-2-methoxybenzamide · ligand · 2 copies · chains A, B
  • CL · Chloride ion · ion · chains A
  • FMT · Formic acid · additive · 14 copies · chains A, B
  • EDO · 1,2-ethanediol · additive · 2 copies · chains A, B

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
17190.750.8063FMT, EDO
26990.720.7855FMT
31980.610.8125GBM, FMT
43220.560.7539CL, FMT
51370.550.8121GBM, FMT

Interfaces

1 interface between chains.

  • A–B · 1739 Ų buried · 23 hydrogen bonds · protein-protein

Compared structures

  • 5IFU · Crystal Structure of Prolyl-tRNA synthetase (ProRS, Proline--tRNA ligase) from Plasmodium… · the same entry in another collection · chain A against A, TM-score 1.00
  • Q8I5R7 · AlphaFold monomer V2.0 prediction for proline--tRNA ligase (Q8I5R7) · a predicted model of the same protein · chain A against A, TM-score 0.99

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