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Yorodumi- PDB-7ua1: Structure of PKA phosphorylated human RyR2-R2474S in the closed s... -
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-Basic information
Entry | Database: PDB / ID: 7ua1 | ||||||
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Title | Structure of PKA phosphorylated human RyR2-R2474S in the closed state in the presence of ARM210 | ||||||
Components |
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Keywords | MEMBRANE PROTEIN / calcium channel | ||||||
Function / homology | Function and homology information junctional sarcoplasmic reticulum membrane / 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 / regulation of AV node cell action potential / calcium-induced calcium release activity ...junctional sarcoplasmic reticulum membrane / 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 / regulation of AV node cell action potential / calcium-induced calcium release activity / sarcoplasmic reticulum calcium ion transport / cell communication by electrical coupling involved in cardiac conduction / 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 / regulation of cardiac muscle contraction by calcium ion signaling / 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 / calcium ion transport into cytosol / response to muscle activity / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / 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 / positive regulation of axon regeneration / protein kinase A regulatory subunit binding / cellular response to caffeine / protein kinase A catalytic subunit binding / channel regulator activity / positive regulation of the force of heart contraction / intracellularly gated calcium channel activity / detection of calcium ion / regulation of cardiac muscle contraction / 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 / cardiac muscle contraction / striated muscle contraction / T cell proliferation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Ion homeostasis / release of sequestered calcium ion into cytosol / regulation of cytosolic calcium ion concentration / calcium channel complex / cellular response to epinephrine stimulus / response to muscle stretch / sarcoplasmic reticulum membrane / regulation of heart rate / sarcoplasmic reticulum / establishment of localization in cell / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / calcium-mediated signaling / calcium channel activity / response to hydrogen peroxide / sarcolemma / Stimuli-sensing channels / Z disc / intracellular calcium ion homeostasis / calcium ion transport / positive regulation of cytosolic calcium ion concentration / protein refolding / transmembrane transporter binding / calmodulin binding / response to hypoxia / signaling receptor binding / calcium ion binding / enzyme binding / protein-containing complex / identical protein binding / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.99 Å | ||||||
Authors | Miotto, M.C. / Marks, A.R. | ||||||
Funding support | United States, 1items
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Citation | Journal: Sci Adv / Year: 2022 Title: Structural analyses of human ryanodine receptor type 2 channels reveal the mechanisms for sudden cardiac death and treatment. Authors: Marco C Miotto / Gunnar Weninger / Haikel Dridi / Qi Yuan / Yang Liu / Anetta Wronska / Zephan Melville / Leah Sittenfeld / Steven Reiken / Andrew R Marks / Abstract: Ryanodine receptor type 2 (RyR2) mutations have been linked to an inherited form of exercise-induced sudden cardiac death called catecholaminergic polymorphic ventricular tachycardia (CPVT). CPVT ...Ryanodine receptor type 2 (RyR2) mutations have been linked to an inherited form of exercise-induced sudden cardiac death called catecholaminergic polymorphic ventricular tachycardia (CPVT). CPVT results from stress-induced sarcoplasmic reticular Ca leak via the mutant RyR2 channels during diastole. We present atomic models of human wild-type (WT) RyR2 and the CPVT mutant RyR2-R2474S determined by cryo-electron microscopy with overall resolutions in the range of 2.6 to 3.6 Å, and reaching local resolutions of 2.25 Å, unprecedented for RyR2 channels. Under nonactivating conditions, the RyR2-R2474S channel is in a "primed" state between the closed and open states of WT RyR2, rendering it more sensitive to activation that results in stress-induced Ca leak. The Rycal drug ARM210 binds to RyR2-R2474S, reverting the primed state toward the closed state. Together, these studies provide a mechanism for CPVT and for the therapeutic actions of ARM210. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7ua1.cif.gz | 2.9 MB | Display | PDBx/mmCIF format |
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PDB format | pdb7ua1.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 7ua1.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7ua1_validation.pdf.gz | 1.6 MB | Display | wwPDB validaton report |
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Full document | 7ua1_full_validation.pdf.gz | 1.8 MB | Display | |
Data in XML | 7ua1_validation.xml.gz | 402 KB | Display | |
Data in CIF | 7ua1_validation.cif.gz | 623.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ua/7ua1 ftp://data.pdbj.org/pub/pdb/validation_reports/ua/7ua1 | HTTPS FTP |
-Related structure data
Related structure data | 26412MC 7u9qC 7u9rC 7u9tC 7u9xC 7u9zC 7ua3C 7ua4C 7ua5C 7ua9C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 565216.000 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RYR2 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q92736 #2: Protein | Mass: 11798.501 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 (E. coli) / References: UniProt: P68106, peptidylprolyl isomerase #3: Chemical | ChemComp-ZN / #4: Chemical | ChemComp-ATP / #5: Chemical | ChemComp-KVR / Has ligand of interest | Y | |
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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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Source (recombinant) |
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Buffer solution | pH: 7.4 Details: Xanthine was made fresh to avoid aggregation. Xanthine stock solution was 10 mM in NaOH 0.5 N. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 2.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
-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 defocus max: 1200 nm / Nominal defocus min: 400 nm |
Image recording | Electron dose: 58 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
-Processing
EM software | Name: cryoSPARC / Category: CTF correction |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3D reconstruction | Resolution: 2.99 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 113172 / Symmetry type: POINT |
Atomic model building | PDB-ID: 7U9X |