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Crystal structure of the extracellular domain of MSPL/TMPRSS13 in complex with dec-RVKR-cmk inhibitor

Analyse Crystal structure of the extracellular domain of MSPL/TMPRSS13 in complex with… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6KD5
Type
protein
Length
373 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v2 / PDB Bank
Contract
0xd58B01f6C18086e5202cdC5D7Ad3E41790360102
Owner
0xF4e1AA6f26B7DA48EeAD9B24a97927303eeA07b8
Resolution
2.6
Source
Homo sapiens; SYNTHETIC CONSTRUCT
Molecule
Transmembrane protease serine 13; Decanoyl-arg-val-lys-arg-chloromethylketone inhibitor
EC
3.4.21.-
UniProt
Q9BYE2
Ligands
NAG, FUC, CA, SO4
Pockets
5 · best druggability 0.64

Structure

x-ray diffraction · resolution 2.6 · 3 distinct chains · 9% helix, 33% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ATransmembrane protease serine 13 (EC 3.4.21.-)protein1319% helix, 29% strandQ9BYE2
BTransmembrane protease serine 13 (EC 3.4.21.-)protein2389% helix, 36% strandQ9BYE2
CDecanoyl-arg-val-lys-arg-chloromethylketone inhibitorprotein40% helix, 25% strand—

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 3 copies · chains A, B
  • FUC · alpha-L-fucopyranose · sugar · chains A
  • CA · Calcium ion · metal · chains A
  • SO4 · Sulfate ion · ion · 7 copies · chains A, B, C

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
11740.640.8437empty
22000.460.7431empty
31140.370.7318SO4
4750.350.7616empty
5530.280.7516empty

Interfaces

2 interfaces between chains.

  • A–B · 1861 Ų buried · 21 hydrogen bonds · protein-protein
  • B–C · 445 Ų buried · 17 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 9 disulfide, 2 glycan, 1 modified (disulfide, N-glycosylation, nonstandard).

Compared structures

  • 6KD5 · Crystal structure of the extracellular domain of MSPL/TMPRSS13 in complex with… · the same entry in another collection · chain A against A, TM-score 1.00
  • Q9BYE2 · AlphaFold monomer V2.0 prediction for transmembrane protease serine 13 (Q9BYE2) · a predicted model of the same protein · chain B against A, TM-score 0.97

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