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Yorodumi- PDB-6wou: Cryo-EM structure of recombinant mouse Ryanodine Receptor type 2 ... -
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-Basic information
Entry | Database: PDB / ID: 6wou | ||||||||||||||||||||||||
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Title | Cryo-EM structure of recombinant mouse Ryanodine Receptor type 2 mutant R176Q in complex with FKBP12.6 in nanodisc | ||||||||||||||||||||||||
Components |
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Keywords | TRANSPORT PROTEIN/ISOMERASE / Ryanodine receptor / Calcium channel / Mutation / NTDA mutation / RyR2 / Polymorphic catecholergic ventricular tachycardia / Arrhythmogenic Right Ventricular Dysplasia 2 / TRANSPORT PROTEIN-ISOMERASE complex | ||||||||||||||||||||||||
Function / homology | Function and homology information manganese ion transmembrane transport / establishment of protein localization to endoplasmic reticulum / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / suramin binding / regulation of SA node cell action potential / regulation of atrial cardiac muscle cell action potential / left ventricular cardiac muscle tissue morphogenesis / organic cyclic compound binding / regulation of AV node cell action potential ...manganese ion transmembrane transport / establishment of protein localization to endoplasmic reticulum / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / suramin binding / regulation of SA node cell action potential / regulation of atrial cardiac muscle cell action potential / left ventricular cardiac muscle tissue morphogenesis / organic cyclic compound binding / regulation of AV node cell action potential / calcium-induced calcium release activity / sarcoplasmic reticulum calcium ion transport / Stimuli-sensing channels / Ion homeostasis / regulation of ventricular cardiac muscle cell action potential / ventricular cardiac muscle cell action potential / positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of calcium-mediated signaling / embryonic heart tube morphogenesis / cardiac muscle hypertrophy / negative regulation of insulin secretion involved in cellular response to glucose stimulus / calcium ion transport into cytosol / negative regulation of release of sequestered calcium ion into cytosol / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus / ryanodine-sensitive calcium-release channel activity / response to caffeine / response to muscle activity / A band / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / calcium ion transmembrane import into cytosol / response to redox state / protein maturation by protein folding / 'de novo' protein folding / negative regulation of heart rate / positive regulation of heart rate / FK506 binding / negative regulation of cytosolic calcium ion concentration / positive regulation of axon regeneration / protein kinase A regulatory subunit binding / extrinsic component of cytoplasmic side of plasma membrane / cellular response to caffeine / channel regulator activity / protein kinase A catalytic subunit binding / response to magnesium ion / positive regulation of the force of heart contraction / intracellularly gated calcium channel activity / detection of calcium ion / smooth muscle contraction / response to vitamin E / smooth endoplasmic reticulum / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / calcium channel inhibitor activity / striated muscle contraction / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / T cell proliferation / Ion homeostasis / release of sequestered calcium ion into cytosol / regulation of cytosolic calcium ion concentration / calcium channel complex / cellular response to epinephrine stimulus / sarcoplasmic reticulum membrane / response to muscle stretch / regulation of heart rate / sarcomere / sarcoplasmic reticulum / establishment of localization in cell / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / calcium-mediated signaling / calcium ion transmembrane transport / response to hydrogen peroxide / calcium channel activity / Stimuli-sensing channels / sarcolemma / Z disc / response to calcium ion / intracellular calcium ion homeostasis / calcium ion transport / nuclear envelope / positive regulation of cytosolic calcium ion concentration / monoatomic ion transmembrane transport / protein refolding / scaffold protein binding / transmembrane transporter binding / response to hypoxia / calmodulin binding / signaling receptor binding / calcium ion binding / protein kinase binding / enzyme binding / protein-containing complex / identical protein binding / membrane / cytosol / cytoplasm Similarity search - Function | ||||||||||||||||||||||||
Biological species | Mus musculus (house mouse) Homo sapiens (human) | ||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.27 Å | ||||||||||||||||||||||||
Authors | Iyer, K.A. / Hu, Y. / Kurebayashi, N. / Murayama, T. / Samso, M. | ||||||||||||||||||||||||
Funding support | United States, 7items
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Citation | Journal: Sci Adv / Year: 2020 Title: Structural mechanism of two gain-of-function cardiac and skeletal RyR mutations at an equivalent site by cryo-EM. Authors: Kavita A Iyer / Yifan Hu / Ashok R Nayak / Nagomi Kurebayashi / Takashi Murayama / Montserrat Samsó / Abstract: Mutations in ryanodine receptors (RyRs), intracellular Ca channels, are associated with deadly disorders. Despite abundant functional studies, the molecular mechanism of RyR malfunction remains ...Mutations in ryanodine receptors (RyRs), intracellular Ca channels, are associated with deadly disorders. Despite abundant functional studies, the molecular mechanism of RyR malfunction remains elusive. We studied two single-point mutations at an equivalent site in the skeletal (RyR1 R164C) and cardiac (RyR2 R176Q) isoforms using ryanodine binding, Ca imaging, and cryo-electron microscopy (cryo-EM) of the full-length protein. Loss of the positive charge had greater effect on the skeletal isoform, mediated via distortion of a salt bridge network, a molecular latch inducing rotation of a cytoplasmic domain, and partial progression to open-state traits of the large cytoplasmic assembly accompanied by alteration of the Ca binding site, which concur with the major "hyperactive" feature of the mutated channel. Our cryo-EM studies demonstrated the allosteric effect of a mutation situated ~85 Å away from the pore and identified an isoform-specific structural effect. | ||||||||||||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6wou.cif.gz | 5 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6wou.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 6wou.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6wou_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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Full document | 6wou_full_validation.pdf.gz | 1.4 MB | Display | |
Data in XML | 6wou_validation.xml.gz | 368.5 KB | Display | |
Data in CIF | 6wou_validation.cif.gz | 569.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/wo/6wou ftp://data.pdbj.org/pub/pdb/validation_reports/wo/6wou | HTTPS FTP |
-Related structure data
Related structure data | 21861MC 6wotC 6wovC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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-Components
#1: Protein | Mass: 565507.000 Da / Num. of mol.: 4 / Mutation: R176Q Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mus musculus (house mouse) / Gene: Ryr2 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: E9Q401 #2: Protein | Mass: 11667.305 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: FKBP1B, FKBP12.6, FKBP1L, FKBP9, OTK4 Production host: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria) References: UniProt: P68106, peptidylprolyl isomerase #3: Chemical | ChemComp-ZN / Has ligand of interest | N | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
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Molecular weight | Value: 2.26 MDa / Experimental value: NO | |||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) |
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Buffer solution | pH: 7.4 | |||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||||||||||||
Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil, UltrAuFoil, R1.2/1.3 | |||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 277 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company | |||||||||||||||||||||
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Microscopy | Model: FEI TITAN KRIOS | |||||||||||||||||||||
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM | |||||||||||||||||||||
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 81000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm | |||||||||||||||||||||
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER | |||||||||||||||||||||
Image recording |
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EM imaging optics | Energyfilter slit width: 20 eV |
-Processing
Software |
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EM software |
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CTF correction | Type: NONE | ||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 860841 | ||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C4 (4 fold cyclic) | ||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.27 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 282778 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 5L1D Accession code: 5L1D / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 99.82 Å2 | ||||||||||||||||||||||||||||||||
Refine LS restraints |
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