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Structure of Pycnonodysostosis disease related I249T mutant of human cathepsin K

Analyse Structure of Pycnonodysostosis disease related I249T mutant of human cathepsin K in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5Z5O
Type
protein
Length
386 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v2 / PDB Bank
Contract
0xd58B01f6C18086e5202cdC5D7Ad3E41790360102
Owner
0xF4e1AA6f26B7DA48EeAD9B24a97927303eeA07b8
Resolution
1.92
Source
Homo sapiens
Molecule
Cathepsin K
EC
3.4.22.38
UniProt
P43235
Ligands
NA, SO4, CL
Pockets
7 · best druggability 0.63

Structure

x-ray diffraction · resolution 1.92 · 2 distinct chains · 37% helix, 14% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ACathepsin K (EC 3.4.22.38)protein30933% helix, 18% strandP43235
BCathepsin K (EC 3.4.22.38)protein7755% helix, 0% strandP43235

Ligands and binding sites

  • NA · Sodium ion · metal · chains A
  • SO4 · Sulfate ion · ion · 5 copies · chains A, B
  • CL · Chloride ion · ion · chains A
  • EDO · 1,2-ethanediol · additive · 16 copies · chains A, B
  • GOL · Glycerol · additive · 8 copies · chains A, B
  • PEG · Di(hydroxyethyl)ether · additive · 7 copies · chains A, B
  • MPD · (4S)-2-methyl-2,4-pentanediol · additive · 3 copies · chains B

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
11940.630.8324EDO
21080.550.8430empty
31370.430.7518EDO
41090.400.7620GOL
5610.370.7916EDO

Interfaces

1 interface between chains.

  • A–B · 863 Ų buried · 4 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 3 disulfide, 1 modified (disulfide, nonstandard).

Compared structures

  • 5Z5O · Structure of pycnonodysostosis disease related I249T mutant of human cathepsin K · the same entry in another collection · chain A against A, TM-score 1.00
  • P43235 · AlphaFold monomer V2.0 prediction for cathepsin K (P43235) · a predicted model of the same protein · chain A against A, TM-score 0.97

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