GL1X · GenesisL1 explorer

MolNFT v1 · #25981 · protein

Active site thrombin inhibitors

1WBG · Thrombin light chain: “Active site thrombin inhibitors”. X-ray diffraction, 1 ligand (L03), 2 pockets (best druggability 0.58). MolNFT v1 #25981 on GenesisL1: 3D structure, binding sites and pockets in GL1X.

PDB
1WBG
Type
protein
Length
292 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Thrombin light chain; Thrombin heavy chain; Hirugen
EC
3.4.21.5
UniProt
P00734, P09945
Ligands
L03
Pockets
2 · best druggability 0.58

Structure

x-ray diffraction · 3 distinct chains · 18% helix, 30% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AThrombin light chain (EC 3.4.21.5)protein3132% helix, 0% strandP00734
BThrombin heavy chain (EC 3.4.21.5)protein25116% helix, 35% strandP00734
IHirugenprotein1030% helix, 0% strandP09945

Ligands and binding sites

  • L03 · 3-(4-chlorophenyl)-5-(methylthio)-4H-1,2,4-triazole · ligand · chains B
  • DMS · Dimethyl sulfoxide · additive · 3 copies · chains B

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12810.580.7838L03, DMS
2760.350.7614empty

Interfaces

2 interfaces between chains.

  • A–B · 1227 Ų buried · 31 hydrogen bonds · protein-protein
  • B–I · 644 Ų buried · 6 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 4 disulfide, 1 modified (disulfide, sulfation).

Compared structures

  • 1WBG · Active site thrombin inhibitors · the same entry in another collection · chain A against A, TM-score 1.00
  • P09945 · AlphaFold monomer V2.0 prediction for hirudin variant-2 (P09945) · a predicted model of the same protein · chain I against A, TM-score 0.54

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