2CNN	Hydrolase Hydrolase Inhibitor	date	May 22, 2006
title	Crystal Structures Of Caspase-3 In Complex With Aza-Peptide Inhibitors.
authors	R.Ganesan, S.Jelakovic, A.J.Campbell, Z.Z.Li, J.L.Asgian, J.C.Pow M.G.Grutter
compound		source
Molecule: Caspase-3 Chain: A Fragment: Alpha Subunit, Residues 29-175 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Casp3 Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) (Stratagene) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet11d (Novagen)
Molecule: Caspase-3 Chain: B Fragment: Beta Subunit Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Casp3 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Aza-Peptide Expoxide Chain: C Fragment: Cbz-Ile-Glu-Thr-Aasp-Ep-Co-Ala-Nh-Ch2-Ph Engineered: Yes		Synthetic: Yes Organism_scientific: Synthetic Construct Organism_taxid: 32630
symmetry	Space Group: I 2 2 2	R_factor 0.183 R_Free 0.206
crystal cell	length a length b length c angle alpha angle beta angle gamma 67.913 83.743 96.211 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.70 Å
ligand	ABN, MY0, MY5, PHQ	enzyme
Gene Ontology	Chain Function Process Component A B
Primary reference	Exploring 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] (54 Kb) [Save to disk] Biological Unit Coordinates (2cnn.pdb1.gz) 95 Kb LPC: Ligand-Protein Contacts for 2CNN CSU: Contacts of Structural Units for 2CNN Likely Quarternary Molecular Structure file(s) for 2CNN Structure Factors (228 Kb) Retrieve 2CNN in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2CNN from S2C, [Save to disk] Re-refined 2cnn structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2CNN 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 2CNN

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 2CNN, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2cnn_C] [2cnn_I] [2cnn_B] [2cnn_A] [2cnn] SWISS-PROT database: [P42574] Domain organization of [CASP3_HUMAN] by SWISSPFAM Domain found in 2CNN: [CASc ] by SMART

Other resources with information on 2CNN

Community annotation for 2CNN at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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Images from IMB Jena Image Library of Biological Macromolecules.

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