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Crystal structure of the RNA binding domain of threonyl-tRNA synthetase from cryptosporidium parvum iowa II

Analyse Crystal structure of the RNA binding domain of threonyl-tRNA synthetase from… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7L3O
Type
protein
Length
1,602 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Threonyl-tRNA synthetase
EC
6.1.1.3
UniProt
Q5CYN0
Ligands
ZN, CA
Pockets
9 · best druggability 0.83

Structure

x-ray diffraction · 3 distinct chains · 38% helix, 26% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AThreonyl-tRNA synthetase (EC 6.1.1.3)protein40038% helix, 26% strandQ5CYN0
B, CThreonyl-tRNA synthetase (EC 6.1.1.3)protein40138% helix, 26% strandQ5CYN0
DThreonyl-tRNA synthetase (EC 6.1.1.3)protein40038% helix, 25% strandQ5CYN0

Ligands and binding sites

  • ZN · Zinc ion · metal · 4 copies · chains A, B, C, D
  • CA · Calcium ion · metal · 2 copies · chains A, B

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

Pockets

9 pockets found on a 1 Å grid, 8 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19250.830.85103CA
22140.790.9434CA
33730.710.8344empty
43430.690.8344empty
53760.650.7940ZN

Interfaces

3 interfaces between chains.

  • A–D · 2383 Ų buried · 26 hydrogen bonds · protein-protein
  • B–C · 2371 Ų buried · 26 hydrogen bonds · protein-protein
  • A–B · 872 Ų buried · 11 hydrogen bonds · protein-protein

Compared structures

  • 7L3O · Crystal Structure of the RNA binding domain of Threonyl-tRNA synthetase from… · the same entry in another collection · chain A against A, TM-score 1.00

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