2CNK Crystal structures of caspase-3 in complex with aza-peptide epoxide inhibitors. date
authors Ganesan, R., Jelakovic, S., Campbell, A.J., Li, Z.Z., Asgian, J.L., Powers, J.C., Grutter, M.G.
compound source
R_Free 0.193
length a length b length c angle alpha angle beta angle gamma
method X-Ray Diffractionresolution 1.75
ligand MY2, PHQ enzyme


Primary referenceExploring the S4 and S1 prime subsite specificities in caspase-3 with aza-peptide epoxide inhibitors., Ganesan R, Jelakovic S, Campbell AJ, Li ZZ, Asgian JL, Powers JC, Grutter MG, Biochemistry. 2006 Aug 1;45(30):9059-67. PMID:16866351
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (56 Kb) [Save to disk]
  • Biological Unit Coordinates (2cnk.pdb1.gz) 99 Kb
  • LPC: Ligand-Protein Contacts for 2CNK
  • CSU: Contacts of Structural Units for 2CNK
  • Likely Quarternary Molecular Structure file(s) for 2CNK
  • Structure Factors (212 Kb)
  • Retrieve 2CNK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2CNK from S2C, [Save to disk]
  • Re-refined 2cnk structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2CNK 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 2CNK
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 2CNK, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2cnk_A] [2cnk_I] [2cnk_B] [2cnk]
  • SWISS-PROT database: [P42574]
  • Domain organization of [CASP3_HUMAN] by SWISSPFAM
  • Domain found in 2CNK: [CASc ] by SMART
  • Other resources with information on 2CNK
  • Community annotation for 2CNK 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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