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Crystal structure of TLR13-SSRNA13 complex

Analyse Crystal structure of TLR13-SSRNA13 complex in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4Z0C
Type
protein + RNA
Length
1,444 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Toll-like receptor 13; DNA (5'-R(P*AP*CP*GP*GP*AP*AP*AP*GP*AP*CP*CP*CP*C)-3')
UniProt
Q6R5N8
Ligands
NAG
Pockets
16 · best druggability 0.85

Structure

x-ray diffraction · 2 distinct chains · 10% helix, 18% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, DToll-like receptor 13protein70910% helix, 18% strandQ6R5N8
B, CDNA (5'-R(P*AP*CP*GP*GP*AP*AP*AP*GP*AP*CP*CP*CP*C)-3')rna13——

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 32 copies · chains A, B, D, C

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
111360.850.8782empty
23890.620.7740empty
34320.620.7646empty
42180.510.7723empty
52050.510.7724empty

Interfaces

5 interfaces between chains.

  • D–C · 1075 Ų buried · 27 hydrogen bonds · protein-nucleic
  • A–B · 1061 Ų buried · 26 hydrogen bonds · protein-nucleic
  • A–D · 1018 Ų buried · 15 hydrogen bonds · protein-protein
  • A–C · 459 Ų buried · 13 hydrogen bonds · protein-nucleic
  • D–B · 459 Ų buried · 16 hydrogen bonds · protein-nucleic

Modifications

Observed in the structure: 24 glycan, 8 disulfide (N-glycosylation, disulfide).

Compared structures

  • 4Z0C · Crystal structure of TLR13-ssRNA13 complex · the same entry in another collection · chain A against A, TM-score 1.00
  • Q6R5N8 · AlphaFold monomer V2.0 prediction for toll-like receptor 13 (Q6R5N8) · a predicted model of the same protein · chain A against A, TM-score 1.00

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