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- PDB-7uso: Crystal Structure of Caspase-3 with Peptide Inhibitor AcITVKD-CHO -

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Basic information

Entry
Database: PDB / ID: 7uso
TitleCrystal Structure of Caspase-3 with Peptide Inhibitor AcITVKD-CHO
Components
  • Caspase-3 subunit p12
  • Caspase-3 subunit p17
  • Peptide Inhibitor AcITVKD-CHO
KeywordsHYDROLASE/HYDROLASE INHIBITOR / Complex / Peptide Inhibitor / Covalent inhibitor / APOPTOSIS / HYDROLASE-HYDROLASE INHIBITOR complex
Function / homology
Function and homology information


caspase-3 / phospholipase A2 activator activity / Stimulation of the cell death response by PAK-2p34 / anterior neural tube closure / intrinsic apoptotic signaling pathway in response to osmotic stress / leukocyte apoptotic process / positive regulation of pyroptotic inflammatory response / glial cell apoptotic process / NADE modulates death signalling / luteolysis ...caspase-3 / phospholipase A2 activator activity / Stimulation of the cell death response by PAK-2p34 / anterior neural tube closure / intrinsic apoptotic signaling pathway in response to osmotic stress / leukocyte apoptotic process / positive regulation of pyroptotic inflammatory response / glial cell apoptotic process / NADE modulates death signalling / luteolysis / response to cobalt ion / cellular response to staurosporine / cyclin-dependent protein serine/threonine kinase inhibitor activity / death-inducing signaling complex / Apoptosis induced DNA fragmentation / Apoptotic cleavage of cell adhesion proteins / Caspase activation via Dependence Receptors in the absence of ligand / SMAC, XIAP-regulated apoptotic response / Activation of caspases through apoptosome-mediated cleavage / Signaling by Hippo / SMAC (DIABLO) binds to IAPs / SMAC(DIABLO)-mediated dissociation of IAP:caspase complexes / axonal fasciculation / regulation of synaptic vesicle cycle / death receptor binding / fibroblast apoptotic process / epithelial cell apoptotic process / platelet formation / Other interleukin signaling / response to anesthetic / execution phase of apoptosis / negative regulation of cytokine production / positive regulation of amyloid-beta formation / Apoptotic cleavage of cellular proteins / negative regulation of B cell proliferation / pyroptotic inflammatory response / neurotrophin TRK receptor signaling pathway / negative regulation of activated T cell proliferation / response to tumor necrosis factor / negative regulation of cell cycle / T cell homeostasis / B cell homeostasis / Pyroptosis / cell fate commitment / regulation of macroautophagy / Caspase-mediated cleavage of cytoskeletal proteins / response to X-ray / response to amino acid / response to glucose / response to UV / keratinocyte differentiation / Degradation of the extracellular matrix / striated muscle cell differentiation / intrinsic apoptotic signaling pathway / response to glucocorticoid / protein maturation / erythrocyte differentiation / response to nicotine / hippocampus development / apoptotic signaling pathway / enzyme activator activity / protein catabolic process / response to hydrogen peroxide / sensory perception of sound / protein processing / regulation of protein stability / response to wounding / neuron differentiation / response to estradiol / peptidase activity / positive regulation of neuron apoptotic process / heart development / protease binding / neuron apoptotic process / response to lipopolysaccharide / aspartic-type endopeptidase activity / learning or memory / response to hypoxia / postsynaptic density / response to xenobiotic stimulus / cysteine-type endopeptidase activity / neuronal cell body / apoptotic process / DNA damage response / protein-containing complex binding / glutamatergic synapse / proteolysis / nucleoplasm / nucleus / cytoplasm / cytosol
Similarity search - Function
Peptidase C14 family / 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 ...Peptidase C14 family / 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 / Caspase-like domain superfamily
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.3 Å
AuthorsFuller, J.L. / Finzel, B.C.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute on Aging (NIH/NIA)1R01AG062199 - 0 United States
CitationJournal: Arch Pharm / Year: 2022
Title: Characterization of caspase-2 inhibitors based on specific sites of caspase-2-mediated proteolysis.
Authors: Bresinsky, M. / Strasser, J.M. / Hubmann, A. / Vallaster, B. / McCue, W.M. / Fuller, J. / Singh, G. / Nelson, K.M. / Cuellar, M.E. / Finzel, B.C. / Ashe, K.H. / Walters, M.A. / Pockes, S.
History
DepositionApr 25, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 1, 2022Provider: repository / Type: Initial release
Revision 1.1Jun 15, 2022Group: Database references / Category: citation / citation_author
Item: _citation.journal_abbrev / _citation.journal_id_ISSN ..._citation.journal_abbrev / _citation.journal_id_ISSN / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID
Revision 1.2Sep 14, 2022Group: Database references / Category: citation
Item: _citation.country / _citation.journal_abbrev / _citation.journal_volume
Revision 1.3Oct 18, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.4Nov 6, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Caspase-3 subunit p17
B: Caspase-3 subunit p12
C: Caspase-3 subunit p17
D: Caspase-3 subunit p12
F: Peptide Inhibitor AcITVKD-CHO
G: Peptide Inhibitor AcITVKD-CHO


Theoretical massNumber of molelcules
Total (without water)58,3046
Polymers58,3046
Non-polymers00
Water1,36976
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: fluorescence resonance energy transfer
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area15800 Å2
ΔGint-81 kcal/mol
Surface area17370 Å2
MethodPISA
Unit cell
Length a, b, c (Å)50.268, 66.241, 82.863
Angle α, β, γ (deg.)90.000, 91.330, 90.000
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Caspase-3 subunit p17


Mass: 16639.902 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CASP3, CPP32 / Production host: Escherichia coli (E. coli) / References: UniProt: P42574, caspase-3
#2: Protein Caspase-3 subunit p12


Mass: 11910.604 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CASP3, CPP32 / Production host: Escherichia coli (E. coli) / References: UniProt: P42574
#3: Protein/peptide Peptide Inhibitor AcITVKD-CHO


Mass: 601.713 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli)
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 76 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY
Has protein modificationY

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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: 2.51 Å3/Da / Density % sol: 51.06 % / Description: plate crystals grow within 48 hours
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 5.3
Details: 15% PEG 6000, 5% Glycerol, 100mM Sodium Citrate (pH 5.3), 10mM DTT, 3mM NaN3

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Data collection

DiffractionMean temperature: 193 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 17-ID / Wavelength: 1 Å
DetectorType: DECTRIS EIGER X 9M / Detector: PIXEL / Date: Jul 17, 2021
RadiationMonochromator: Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.3→36.31 Å / Num. obs: 23912 / % possible obs: 98.11 % / Redundancy: 1.9 % / Biso Wilson estimate: 35.78 Å2 / CC1/2: 0.995 / CC star: 0.999 / Rmerge(I) obs: 0.04781 / Rpim(I) all: 0.04781 / Rrim(I) all: 0.06761 / Net I/σ(I): 8.34
Reflection shellResolution: 2.3→2.382 Å / Redundancy: 2 % / Rmerge(I) obs: 0.201 / Mean I/σ(I) obs: 3.18 / Num. unique obs: 2395 / CC1/2: 0.9 / CC star: 0.973 / Rpim(I) all: 0.201 / Rrim(I) all: 0.2843 / % possible all: 99.46

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Processing

Software
NameVersionClassification
SCALAdata scaling
PHENIX1.19.2_4158refinement
PDB_EXTRACT3.27data extraction
autoPROCdata reduction
REFMACphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 7rnf

7rnf


Resolution: 2.3→36.31 Å / SU ML: 0.28 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 25.45 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2414 1199 5.02 %
Rwork0.1908 22687 -
obs0.1933 23886 98.14 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 79.61 Å2 / Biso mean: 39.2733 Å2 / Biso min: 22.1 Å2
Refinement stepCycle: final / Resolution: 2.3→36.31 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3843 0 0 76 3919
Biso mean---37.16 -
Num. residues----476
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 9

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
2.3-2.390.28831380.21592523266199
2.39-2.50.29851390.22312509264899
2.5-2.630.30291360.23172546268299
2.63-2.80.3011120.24112489260197
2.8-3.010.30021460.23122509265599
3.01-3.320.28391340.21312560269499
3.32-3.80.23251160.17982481259796
3.8-4.780.1741390.14522461260096
4.78-36.310.21781390.17862609274899

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