1I3O	Apoptosis	date	Feb 15, 2001
title	Crystal Structure Of The Complex Of Xiap-Bir2 And Caspase 3
authors	S.J.Riedl, M.Renatus, R.Schwarzenbacher, Q.Zhou, C.Sun, S.W.Fesik R.C.Liddington, G.S.Salvesen
compound		source
Molecule: Caspase 3 Chain: A, C Fragment: Apopain P17 Subunit Ec: 3.4.22.- Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: I39005 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet23b
Molecule: Caspase 3 Chain: B, D Fragment: Apopain P12 Subunit Ec: 3.4.22.- Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: I39005 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet23b
Molecule: Baculoviral Iap Repeat-Containing Protein 4 Chain: E, F Fragment: Xiap-Bir2 Synonym: X-Linked Iap Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: U32974 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet15b
symmetry	Space Group: P 21 21 21	R_factor 0.248 R_Free 0.278
crystal cell	length a length b length c angle alpha angle beta angle gamma 70.700 95.500 144.200 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand	ZN	enzyme	Hydrolase E.C.3.4.22 BRENDA
related structures	by homologous chain: 1C9Q, 1GFW, 1K88, 1RHU
Gene Ontology	Chain Function Process Component A, C D, B
Primary reference	Structural basis for the inhibition of caspase-3 by XIAP., Riedl SJ, Renatus M, Schwarzenbacher R, Zhou Q, Sun C, Fesik SW, Liddington RC, Salvesen GS, Cell 2001 Mar 9;104(5):791-800. PMID:11257232

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (117 Kb) [Save to disk] Biological Unit Coordinates (1i3o.pdb1.gz) 111 Kb LPC: Ligand-Protein Contacts for 1I3O CSU: Contacts of Structural Units for 1I3O Likely Quarternary Molecular Structure file(s) for 1I3O Retrieve 1I3O in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1I3O from S2C, [Save to disk]

View 1I3O 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 1I3O

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1I3O, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1i3o.1, region A:,B [Jmol] [rasmolscript] [script source]     - Domain d1i3o.2, region C:,D [Jmol] [rasmolscript] [script source]     - Domain d1i3oe_, region E [Jmol] [rasmolscript] [script source]     - Domain d1i3of_, region F [Jmol] [rasmolscript] [script source] 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: [1i3o_E] [1i3o_C] [1i3o_B] [1i3o_A] [1i3o_D] [1i3o_F] [1i3o] SWISS-PROT database: [P42574] [P98170] Domain organization of [CASP3_HUMAN] [XIAP_HUMAN] by SWISSPFAM Domains found in 1I3O: [BIR] [CASc ] by SMART

Other resources with information on 1I3O

Community annotation for 1I3O at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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