1ATK Hydrolase date Dec 19, 1996
title Crystal Structure Of The Cysteine Protease Human Cathepsin K Complex With The Covalent Inhibitor E-64
authors B.Zhao, W.W.Smith, C.A.Janson, S.S.Abdel-Meguid
compound source
Molecule: Cathepsin K
Chain: A
Engineered: Yes
Other_details: Inhibitor E-64 Covalent Link Between Inhibit And The Sulfur Of Cys 25
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Cell_line: Sf21
Cell: Human Osteoclasts
Expression_system: Spodoptera Frugiperda
Expression_system_common: Fall Armyworm
Expression_system_taxid: 7108
Expression_system_cell_line: Sf21
Expression_system_vector: Baculovirus
symmetry Space Group: P 21 21 21
R_factor 0.215 R_Free 0.310
length a length b length c angle alpha angle beta angle gamma
38.400 50.700 104.900 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.20 Å
ligand E64 enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1AYU, 1AYV

Primary referenceCrystal structure of human osteoclast cathepsin K complex with E-64., Zhao B, Janson CA, Amegadzie BY, D'Alessio K, Griffin C, Hanning CR, Jones C, Kurdyla J, McQueney M, Qiu X, Smith WW, Abdel-Meguid SS, Nat Struct Biol 1997 Feb;4(2):109-11. PMID:9033588
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk]
  • Biological Unit Coordinates (1atk.pdb1.gz) 35 Kb
  • LPC: Ligand-Protein Contacts for 1ATK
  • CSU: Contacts of Structural Units for 1ATK
  • Likely Quarternary Molecular Structure file(s) for 1ATK
  • Retrieve 1ATK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1ATK from S2C, [Save to disk]
  • View 1ATK in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 1ATK
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1ATK, from MSDmotif at EBI
  • Genome occurence of 1ATK's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1atk__, region [Jmol] [rasmolscript] [script source]
  • Fold representative 1atk from FSSP and Dali (Families of Structurally Similar Proteins)
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1atk_A] [1atk]
  • SWISS-PROT database: [P43235]
  • Domain organization of [CATK_HUMAN] by SWISSPFAM
  • Domain found in 1ATK: [Pept_C1 ] by SMART
  • Other resources with information on 1ATK
  • Community annotation for 1ATK at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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