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1.85 a resolution structure of norovirus 3CL protease in complex with inhibitor 5D

Analyse 1.85 a resolution structure of norovirus 3CL protease in complex with inhibitor… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6W5H
Type
protein
Length
663 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
3C-like protease
EC
3.4.22.66
UniProt
Q83883
Ligands
TKP
Pockets
5 · best druggability 0.64

Structure

x-ray diffraction · 4 distinct chains · 6% helix, 52% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A3C-like protease (EC 3.4.22.66)protein1687% helix, 52% strandQ83883
B3C-like protease (EC 3.4.22.66)protein1676% helix, 52% strandQ83883
C3C-like protease (EC 3.4.22.66)protein1636% helix, 53% strandQ83883
D3C-like protease (EC 3.4.22.66)protein1657% helix, 52% strandQ83883

Ligands and binding sites

  • TKP · 2-(3-chlorophenyl)-2-methylpropyl [(2S)-3-cyclohexyl-1-({(2S)-1-hydroxy-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}amino)-1-oxopropan-2-yl]carbamate · ligand · 4 copies · chains A, B, C, D

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

Pockets

5 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12930.640.8033empty
22480.610.8031empty
31220.370.7328empty
4550.320.7615empty
5680.310.7519TKP

Interfaces

3 interfaces between chains.

  • C–D · 441 Ų buried · 2 hydrogen bonds · protein-protein
  • A–B · 430 Ų buried · 2 hydrogen bonds · protein-protein
  • A–C · 160 Ų buried · 2 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 4 covalent, 2 disulfide (covalent ligand, disulfide).

Compared structures

  • 6W5H · 1.85 A resolution structure of Norovirus 3CL protease in complex with inhibitor 5d · the same entry in another collection · chain A against A, TM-score 1.00

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