GL1X · GenesisL1 explorer

MolNFT v1 · #61692 · protein

Understanding thrombin inhibition

3DT0 · Thrombin light chain: “Understanding thrombin inhibition”. X-ray diffraction, 2 ligands (16U, NA), 2 pockets (best druggability 0.56). MolNFT v1 #61692 on GenesisL1: 3D structure, binding sites and pockets in GL1X.

PDB
3DT0
Type
protein
Length
285 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Thrombin light chain; Thrombin heavy chain; Hirudin variant-1
EC
3.4.21.5
UniProt
P00734, P01050
Ligands
16U, NA
Pockets
2 · best druggability 0.56

Structure

x-ray diffraction · 3 distinct chains · 16% helix, 30% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
LThrombin light chain (EC 3.4.21.5)protein2638% helix, 0% strandP00734
HThrombin heavy chain (EC 3.4.21.5)protein25014% helix, 34% strandP00734
IHirudin variant-1protein90% helix, 0% strandP01050

Ligands and binding sites

  • 16U · N-(3-chlorobenzyl)-1-(4-methylpentanoyl)-L-prolinamide · ligand · chains H
  • NA · Sodium ion · metal · 2 copies · chains H

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
12820.560.773916U
2630.290.7415empty

Interfaces

2 interfaces between chains.

  • L–H · 1057 Ų buried · 29 hydrogen bonds · protein-protein
  • H–I · 548 Ų buried · 6 hydrogen bonds · protein-protein

Modifications

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

Compared structures

  • 3DT0 · Understanding Thrombin Inhibition · the same entry in another collection · chain L against L, TM-score 1.00
  • P01050 · AlphaFold monomer V2.0 prediction for hirudin variant-1 (P01050) · a predicted model of the same protein · chain I against A, TM-score 0.48

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