3R7N	Hydrolase Hydrolase Inhibitor	date	Mar 22, 2011
title	Caspase-2 Bound With Two Copies Of Ac-Dvad-Cho
authors	Y.Tang, J.Wells, M.Arkin
compound		source
Molecule: Caspase-2 Subunit P18 Chain: A, C Ec: 3.4.22.- Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Casp2, Ich1, Nedd2 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Caspase-2 Subunit P12 Chain: B, D Ec: 3.4.22.- Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Casp2, Ich1, Nedd2 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Peptide Inhibitor (Ace)Dvad-Cho Chain: F, E Engineered: Yes		Synthetic: Yes
symmetry	Space Group: P 21 21 21	R_factor 0.172 R_Free 0.227
crystal cell	length a length b length c angle alpha angle beta angle gamma 62.876 96.856 98.142 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.33 Å
ligand	ACE, ASA	enzyme	Hydrolase E.C.3.4.22 BRENDA
Primary reference	Structural and enzymatic insights into caspase-2 protein substrate recognition and catalysis., Tang Y, Wells JA, Arkin MR, J Biol Chem. 2011 Sep 30;286(39):34147-54. Epub 2011 Aug 2. PMID:21828056

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (92 Kb) [Save to disk] Biological Unit Coordinates (3r7n.pdb1.gz) 44 Kb Biological Unit Coordinates (3r7n.pdb2.gz) 45 Kb Biological Unit Coordinates (3r7n.pdb3.gz) 87 Kb LPC: Ligand-Protein Contacts for 3R7N CSU: Contacts of Structural Units for 3R7N Structure Factors (400 Kb) Retrieve 3R7N in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3R7N from S2C, [Save to disk] Re-refined 3r7n structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3R7N 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 3R7N

Cartoon representation from PDB Cartoon 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 Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 3R7N, from MSDmotif at EBI Fold representative 3r7n from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3r7n_A] [3r7n_B] [3r7n_C] [3r7n_D] [3r7n_E] [3r7n_F] SWISS-PROT database: Domain organization of by SWISSPFAM Alignments of the sequence of 3R7N with the sequences similar proteins can be viewed for 3R7N's classification at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification at ProtoMap. Click on the Cluster number.

Other resources with information on 3R7N

Community annotation for 3R7N at PDBWiki (http://pdbwiki.org)

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