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Open data
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Basic information
| Entry | Database: PDB / ID: 7wr4 | ||||||
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| Title | Crystal structure of OspC3-calmodulin-caspase-4 complex | ||||||
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Keywords | TRANSFERASE / ADP-riboxanase / effector | ||||||
| Function / homology | Function and homology informationsymbiont-mediated suppression of host signal transduction pathway / symbiont-mediated suppression of host calcium-mediated signal transduction / caspase-4 / Lyases; Carbon-nitrogen lyases; Other carbon-nitrogen lyases / ADP-riboxanase activity / non-canonical inflammasome complex / positive regulation of interleukin-18-mediated signaling pathway / symbiont-mediated suppression of host programmed cell death / non-canonical inflammasome complex assembly / symbiont-mediated perturbation of host programmed cell death ...symbiont-mediated suppression of host signal transduction pathway / symbiont-mediated suppression of host calcium-mediated signal transduction / caspase-4 / Lyases; Carbon-nitrogen lyases; Other carbon-nitrogen lyases / ADP-riboxanase activity / non-canonical inflammasome complex / positive regulation of interleukin-18-mediated signaling pathway / symbiont-mediated suppression of host programmed cell death / non-canonical inflammasome complex assembly / symbiont-mediated perturbation of host programmed cell death / NLRP1 inflammasome complex / CARD domain binding / positive regulation of tumor necrosis factor-mediated signaling pathway / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / Calmodulin induced events / Reduction of cytosolic Ca++ levels / Activation of Ca-permeable Kainate Receptor / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Loss of phosphorylation of MECP2 at T308 / CREB1 phosphorylation through the activation of Adenylate Cyclase / CaMK IV-mediated phosphorylation of CREB / PKA activation / negative regulation of high voltage-gated calcium channel activity / Glycogen breakdown (glycogenolysis) / CLEC7A (Dectin-1) induces NFAT activation / Activation of RAC1 downstream of NMDARs / negative regulation of ryanodine-sensitive calcium-release channel activity / organelle localization by membrane tethering / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / negative regulation of calcium ion export across plasma membrane / regulation of cardiac muscle cell action potential / pyroptotic inflammatory response / presynaptic endocytosis / Synthesis of IP3 and IP4 in the cytosol / regulation of cell communication by electrical coupling involved in cardiac conduction / Phase 0 - rapid depolarisation / calcineurin-mediated signaling / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / RHO GTPases activate PAKs / protein autoprocessing / Ion transport by P-type ATPases / Uptake and function of anthrax toxins / regulation of ryanodine-sensitive calcium-release channel activity / protein phosphatase activator activity / Long-term potentiation / Calcineurin activates NFAT / Regulation of MECP2 expression and activity / intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress / DARPP-32 events / catalytic complex / Smooth Muscle Contraction / Pyroptosis / detection of calcium ion / regulation of cardiac muscle contraction / RHO GTPases activate IQGAPs / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / cellular response to interferon-beta / Protein methylation / calcium channel inhibitor activity / Activation of AMPK downstream of NMDARs / presynaptic cytosol / Ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / eNOS activation / titin binding / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / sperm midpiece / regulation of calcium-mediated signaling / voltage-gated potassium channel complex / calcium channel complex / FCERI mediated Ca+2 mobilization / substantia nigra development / intrinsic apoptotic signaling pathway / Ras activation upon Ca2+ influx through NMDA receptor / regulation of heart rate / FCGR3A-mediated IL10 synthesis / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / calyx of Held / adenylate cyclase activator activity / protein maturation / sarcomere / VEGFR2 mediated cell proliferation / protein serine/threonine kinase activator activity / VEGFR2 mediated vascular permeability / regulation of cytokinesis / spindle microtubule / calcium channel regulator activity / Translocation of SLC2A4 (GLUT4) to the plasma membrane / positive regulation of receptor signaling pathway via JAK-STAT / lipopolysaccharide binding / RAF activation / Transcriptional activation of mitochondrial biogenesis / NOD1/2 Signaling Pathway / response to calcium ion / cellular response to type II interferon / Stimuli-sensing channels Similarity search - Function | ||||||
| Biological species | Shigella flexneri (bacteria) Homo sapiens (human) | ||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.75 Å | ||||||
Authors | Hou, Y.J. / Zeng, H. / Shao, F. / Ding, J. | ||||||
| Funding support | China, 1items
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Citation | Journal: Nat.Struct.Mol.Biol. / Year: 2023Title: Structural mechanisms of calmodulin activation of Shigella effector OspC3 to ADP-riboxanate caspase-4/11 and block pyroptosis. Authors: Hou, Y. / Zeng, H. / Li, Z. / Feng, N. / Meng, F. / Xu, Y. / Li, L. / Shao, F. / Ding, J. | ||||||
| History |
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7wr4.cif.gz | 214.8 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7wr4.ent.gz | 137.3 KB | Display | PDB format |
| PDBx/mmJSON format | 7wr4.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7wr4_validation.pdf.gz | 450.5 KB | Display | wwPDB validaton report |
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| Full document | 7wr4_full_validation.pdf.gz | 459 KB | Display | |
| Data in XML | 7wr4_validation.xml.gz | 28.1 KB | Display | |
| Data in CIF | 7wr4_validation.cif.gz | 37.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/wr/7wr4 ftp://data.pdbj.org/pub/pdb/validation_reports/wr/7wr4 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7wr0SC ![]() 7wr1C ![]() 7wr2C ![]() 7wr3SC ![]() 7wr5C ![]() 7wr6C S: Starting model for refinement C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| Unit cell |
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Components
| #1: Protein | Mass: 49705.074 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Shigella flexneri (bacteria) / Gene: ospC3 / Plasmid: pGEX-6p-2 / Production host: ![]() |
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| #2: Protein | Mass: 16852.545 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CALM1, CALM, CAM, CAM1 / Plasmid: pET28a / Production host: ![]() |
| #3: Protein | Mass: 32095.428 Da / Num. of mol.: 1 / Mutation: C258A Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CASP4 / Plasmid: pET28a-SUMO / Production host: ![]() |
-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.66 Å3/Da / Density % sol: 53.72 % |
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| Crystal grow | Temperature: 293 K / Method: vapor diffusion, sitting drop Details: 25% PEG3350, 0.1 M HEPES pH 7.4, 0.2 M Ammonium sulfate, 0.3 M NDSB-195 PH range: 6.8-7.8 |
-Data collection
| Diffraction | Mean temperature: 93 K / Serial crystal experiment: N |
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| Diffraction source | Source: SYNCHROTRON / Site: SSRF / Beamline: BL19U1 / Wavelength: 0.97852 Å |
| Detector | Type: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Sep 25, 2021 |
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.97852 Å / Relative weight: 1 |
| Reflection | Resolution: 2.75→43.6 Å / Num. obs: 28191 / % possible obs: 99.4 % / Redundancy: 13.06 % / Biso Wilson estimate: 84.44 Å2 / CC1/2: 1 / Rmerge(I) obs: 0.061 / Rrim(I) all: 0.063 / Net I/σ(I): 28.12 |
| Reflection shell | Resolution: 2.75→2.82 Å / Rmerge(I) obs: 1.246 / Mean I/σ(I) obs: 2.28 / Num. unique obs: 2043 / CC1/2: 0.825 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: 7WR3, 7WR0 Resolution: 2.75→43.6 Å / SU ML: 0.4299 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 33.5538 Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
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| Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 93.86 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 2.75→43.6 Å
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| Refine LS restraints |
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| LS refinement shell |
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About Yorodumi




Shigella flexneri (bacteria)
Homo sapiens (human)
X-RAY DIFFRACTION
China, 1items
Citation





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