1ATK

CRYSTAL STRUCTURE OF THE CYSTEINE PROTEASE HUMAN CATHEPSIN K IN COMPLEX WITH THE COVALENT INHIBITOR E-64

Structural Biology Knowledgebase: 1ATK SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.310
  • R-Value Work: 0.215

Literature

Macromolecules
Sequence Display for 1ATK

Classification: HYDROLASE

Total Structure Weight: 23884.07

Macromolecule Entities
Molecule Chains Length Organism Details
CATHEPSIN K A 215 Homo sapiens EC#: 3.4.22.38 IUBMB
Details: INHIBITOR E-64 COVALENT LINK BETWEEN INHIBITOR ATOM C2 AND THE SULFUR OF CYS 25
Gene Name(s): CTSK Gene View CTSO Gene View CTSO2
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 1 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
E64
Query on E64

A N-[N-[1-HYDROXYCARBOXYETHYL-CARBONYL]LEUCYLAMINO- BUTYL]-GUANIDINE
C15 H30 N5 O5
QPQNJAXBPHVASB-QWRGUYRKSA-O
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.310
  • R-Value Work: 0.215
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 38.40 α = 90.00
b = 50.70 β = 90.00
c = 104.90 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1996-12-19
  • Released Date: 1998-02-04
  • Deposition author(s): Zhao, B., Smith, W.W., Janson, C.A., Abdel-Meguid, S.S.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4