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- PDB-1i3o: CRYSTAL STRUCTURE OF THE COMPLEX OF XIAP-BIR2 AND CASPASE 3 -

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Basic information

Entry
Database: PDB / ID: 1i3o
TitleCRYSTAL STRUCTURE OF THE COMPLEX OF XIAP-BIR2 AND CASPASE 3
Components
  • (CASPASE 3) x 2
  • BACULOVIRAL IAP REPEAT-CONTAINING PROTEIN 4
KeywordsAPOPTOSIS / complex / IAP / caspase
Function / homology
Function and homology information


endopeptidase regulator activity / inhibition of cysteine-type endopeptidase activity / regulation of apoptosis involved in tissue homeostasis / positive regulation of protein linear polyubiquitination / regulation of BMP signaling pathway / copper ion homeostasis / Stimulation of the cell death response by PAK-2p34 / caspase-3 / phospholipase A2 activator activity / anterior neural tube closure ...endopeptidase regulator activity / inhibition of cysteine-type endopeptidase activity / regulation of apoptosis involved in tissue homeostasis / positive regulation of protein linear polyubiquitination / regulation of BMP signaling pathway / copper ion homeostasis / Stimulation of the cell death response by PAK-2p34 / caspase-3 / phospholipase A2 activator activity / anterior neural tube closure / regulation of nucleotide-binding domain, leucine rich repeat containing receptor signaling pathway / intrinsic apoptotic signaling pathway in response to osmotic stress / nucleotide-binding oligomerization domain containing 1 signaling pathway / leukocyte apoptotic process / glial cell apoptotic process / positive regulation of pyroptotic inflammatory response / NADE modulates death signalling / luteolysis / response to cobalt ion / : / cellular response to staurosporine / death-inducing signaling complex / cyclin-dependent protein serine/threonine kinase inhibitor activity / Apoptosis induced DNA fragmentation / nucleotide-binding oligomerization domain containing 2 signaling pathway / Apoptotic cleavage of cell adhesion proteins / Caspase activation via Dependence Receptors in the absence of ligand / : / SMAC, XIAP-regulated apoptotic response / death receptor binding / Activation of caspases through apoptosome-mediated cleavage / axonal fasciculation / Signaling by Hippo / Regulation of the apoptosome activity / SMAC (DIABLO) binds to IAPs / SMAC(DIABLO)-mediated dissociation of IAP:caspase complexes / : / fibroblast apoptotic process / TNFR1-induced proapoptotic signaling / epithelial cell apoptotic process / negative regulation of cytokine production / platelet formation / RIPK1-mediated regulated necrosis / cysteine-type endopeptidase inhibitor activity / Other interleukin signaling / execution phase of apoptosis / positive regulation of amyloid-beta formation / regulation of innate immune response / negative regulation of B cell proliferation / Apoptotic cleavage of cellular proteins / pyroptotic inflammatory response / negative regulation of activated T cell proliferation / T cell homeostasis / B cell homeostasis / neurotrophin TRK receptor signaling pathway / protein K63-linked ubiquitination / cysteine-type endopeptidase inhibitor activity involved in apoptotic process / negative regulation of cell cycle / protein maturation / response to X-ray / negative regulation of tumor necrosis factor-mediated signaling pathway / positive regulation of type I interferon production / response to amino acid / cell fate commitment / Pyroptosis / regulation of macroautophagy / Caspase-mediated cleavage of cytoskeletal proteins / response to tumor necrosis factor / response to glucose / response to UV / protein serine/threonine kinase binding / response to glucocorticoid / keratinocyte differentiation / striated muscle cell differentiation / enzyme activator activity / Degradation of the extracellular matrix / intrinsic apoptotic signaling pathway / Regulation of PTEN localization / : / erythrocyte differentiation / positive regulation of protein ubiquitination / TNFR1-induced NF-kappa-B signaling pathway / apoptotic signaling pathway / hippocampus development / Deactivation of the beta-catenin transactivating complex / response to nicotine / positive regulation of JNK cascade / Regulation of TNFR1 signaling / sensory perception of sound / RING-type E3 ubiquitin transferase / regulation of protein stability / protein catabolic process / response to hydrogen peroxide / protein processing / Regulation of necroptotic cell death / neuron differentiation / Wnt signaling pathway / response to wounding / Regulation of PTEN stability and activity / ubiquitin-protein transferase activity
Similarity search - Function
XIAP/BIRC8, UBA domain / : / BIRC2/3-like, UBA domain / Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A / Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A / : / Caspase-like / BIR repeat. / BIR repeat / Inhibitor of Apoptosis domain ...XIAP/BIRC8, UBA domain / : / BIRC2/3-like, UBA domain / Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A / Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A / : / Caspase-like / BIR repeat. / BIR repeat / Inhibitor of Apoptosis domain / BIR repeat profile. / Baculoviral inhibition of apoptosis protein repeat / Rossmann fold - #1460 / Peptidase family C14A, His active site / Caspase family histidine active site. / Peptidase C14, caspase non-catalytic subunit p10 / Peptidase family C14A, cysteine active site / Caspase family cysteine active site. / Caspase family p10 domain profile. / Peptidase C14A, caspase catalytic domain / Caspase, interleukin-1 beta converting enzyme (ICE) homologues / Peptidase C14, p20 domain / Caspase family p20 domain profile. / : / Caspase domain / Zinc finger, C3HC4 type (RING finger) / Caspase-like domain superfamily / Death-like domain superfamily / Ring finger / Zinc finger RING-type profile. / Zinc finger, RING-type / Alpha-Beta Plaits / Rossmann fold / 2-Layer Sandwich / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Caspase-3 / E3 ubiquitin-protein ligase XIAP
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 2.7 Å
AuthorsRiedl, S.J. / Renatus, M. / Schwarzenbacher, R. / Zhou, Q. / Sun, C. / Fesik, S.W. / Liddington, R.C. / Salvesen, G.S.
CitationJournal: Cell(Cambridge,Mass.) / Year: 2001
Title: Structural basis for the inhibition of caspase-3 by XIAP.
Authors: Riedl, S.J. / Renatus, M. / Schwarzenbacher, R. / Zhou, Q. / Sun, C. / Fesik, S.W. / Liddington, R.C. / Salvesen, G.S.
History
DepositionFeb 15, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 21, 2001Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 27, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Aug 9, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: CASPASE 3
B: CASPASE 3
C: CASPASE 3
D: CASPASE 3
E: BACULOVIRAL IAP REPEAT-CONTAINING PROTEIN 4
F: BACULOVIRAL IAP REPEAT-CONTAINING PROTEIN 4
hetero molecules


Theoretical massNumber of molelcules
Total (without water)93,5368
Polymers93,4056
Non-polymers1312
Water23413
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area18820 Å2
ΔGint-114 kcal/mol
Surface area28860 Å2
MethodPISA
Unit cell
Length a, b, c (Å)70.700, 95.500, 144.200
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein CASPASE 3


Mass: 19727.279 Da / Num. of mol.: 2 / Fragment: APOPAIN P17 SUBUNIT / Mutation: C285A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: I39005 / Plasmid: PET23B / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3)
References: UniProt: P42574, Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases
#2: Protein CASPASE 3


Mass: 12981.756 Da / Num. of mol.: 2 / Fragment: APOPAIN P12 SUBUNIT
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: I39005 / Plasmid: PET23B / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3)
References: UniProt: P42574, Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases
#3: Protein BACULOVIRAL IAP REPEAT-CONTAINING PROTEIN 4 / X-LINKED IAP


Mass: 13993.578 Da / Num. of mol.: 2 / Fragment: XIAP-BIR2 / Mutation: C202A, C213G
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: U32974 / Plasmid: PET15B / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: P98170
#4: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 13 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.61 Å3/Da / Density % sol: 60.14 %
Crystal growTemperature: 295 K / Method: vapor diffusion, sitting drop / pH: 5.2
Details: sodium formate, sodium acetate, pH 5.2, VAPOR DIFFUSION, SITTING DROP, temperature 295K
Crystal grow
*PLUS
Temperature: 23 ℃ / pH: 7.6
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
110 mMHEPES1drop
2100 mM1dropNaCl
32 mMdithiothreitol1drop
48 mg/mlprotein1drop
50.1 Msodium acetate1reservoir
61.8 Msodium formate1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL7-1 / Wavelength: 1.08 Å
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Dec 15, 2000
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.08 Å / Relative weight: 1
ReflectionResolution: 2.7→500 Å / Num. all: 174633 / Num. obs: 27119 / % possible obs: 99.4 % / Redundancy: 5 % / Biso Wilson estimate: 30 Å2 / Rmerge(I) obs: 0.062
Reflection shellResolution: 2.7→2.8 Å / Redundancy: 4.5 % / Rmerge(I) obs: 0.424 / Mean I/σ(I) obs: 2.3 / Num. unique all: 2649 / % possible all: 99.3
Reflection
*PLUS
Lowest resolution: 500 Å / Num. measured all: 174633
Reflection shell
*PLUS
% possible obs: 99.3 %

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Processing

Software
NameVersionClassification
SOLVEphasing
CNS1refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementStarting model: PDB ENTRY 1PAU and PDB ENTRY 1C9Q

1pau

1c9q


Resolution: 2.7→500 Å / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber / Details: MLF
RfactorNum. reflection% reflectionSelection details
Rfree0.278 1244 5 %RANDOM
Rwork0.248 ---
all-27472 --
obs-27070 98.6 %-
Solvent computationSolvent model: CNS BULK SOLVENT / Bsol: 33.0707 Å2 / ksol: 0.321299 e/Å3
Displacement parametersBiso mean: 29.938 Å2
Baniso -1Baniso -2Baniso -3
1--32.569 Å20 Å20 Å2
2--13.718 Å20 Å2
3---18.85 Å2
Refinement stepCycle: LAST / Resolution: 2.7→500 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5662 0 2 13 5677
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.008574
X-RAY DIFFRACTIONo_bond_d_na
X-RAY DIFFRACTIONo_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONo_angle_d_na
X-RAY DIFFRACTIONo_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.30329
X-RAY DIFFRACTIONo_angle_deg_na
X-RAY DIFFRACTIONo_angle_deg_prot
X-RAY DIFFRACTIONo_dihedral_angle_d
X-RAY DIFFRACTIONo_dihedral_angle_d_na
X-RAY DIFFRACTIONo_dihedral_angle_d_prot
X-RAY DIFFRACTIONo_improper_angle_d
X-RAY DIFFRACTIONo_improper_angle_d_na
X-RAY DIFFRACTIONo_improper_angle_d_prot
X-RAY DIFFRACTIONo_mcbond_it
X-RAY DIFFRACTIONo_mcangle_it
X-RAY DIFFRACTIONo_scbond_it
X-RAY DIFFRACTIONo_scangle_it
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein_rep.top
X-RAY DIFFRACTION2ion.paramion.top
X-RAY DIFFRACTION3water_rep.paramwater_rep.top
Software
*PLUS
Name: CNS / Version: 1 / Classification: refinement
Refinement
*PLUS
Highest resolution: 2.7 Å / Lowest resolution: 500 Å / σ(F): 0 / % reflection Rfree: 5 % / Rfactor obs: 0.248
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDType
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scangle_it

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