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Yorodumi- PDB-8uxl: Structure of PKA phosphorylated human RyR2-R420W in the primed st... -
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-Basic information
Entry | Database: PDB / ID: 8uxl | ||||||
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Title | Structure of PKA phosphorylated human RyR2-R420W in the primed state in the presence of calcium and calmodulin | ||||||
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 / CaM pathway / response to caffeine / calcium ion transport into cytosol / Cam-PDE 1 activation / response to muscle activity / Sodium/Calcium exchangers / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Calmodulin induced events / response to redox state / Reduction of cytosolic Ca++ levels / protein maturation by protein folding / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Activation of Ca-permeable Kainate Receptor / Loss of phosphorylation of MECP2 at T308 / 'de novo' protein folding / CREB1 phosphorylation through the activation of Adenylate Cyclase / PKA activation / negative regulation of high voltage-gated calcium channel activity / CaMK IV-mediated phosphorylation of CREB / Glycogen breakdown (glycogenolysis) / positive regulation of cyclic-nucleotide phosphodiesterase activity / negative regulation of heart rate / organelle localization by membrane tethering / negative regulation of calcium ion export across plasma membrane / autophagosome membrane docking / positive regulation of heart rate / mitochondrion-endoplasmic reticulum membrane tethering / CLEC7A (Dectin-1) induces NFAT activation / Activation of RAC1 downstream of NMDARs / regulation of cardiac muscle cell action potential / FK506 binding / positive regulation of ryanodine-sensitive calcium-release channel activity / positive regulation of axon regeneration / regulation of cell communication by electrical coupling involved in cardiac conduction / Synthesis of IP3 and IP4 in the cytosol / negative regulation of peptidyl-threonine phosphorylation / Negative regulation of NMDA receptor-mediated neuronal transmission / protein kinase A regulatory subunit binding / Phase 0 - rapid depolarisation / Unblocking of NMDA receptors, glutamate binding and activation / cellular response to caffeine / negative regulation of ryanodine-sensitive calcium-release channel activity / protein kinase A catalytic subunit binding / channel regulator activity / positive regulation of the force of heart contraction / protein phosphatase activator activity / RHO GTPases activate PAKs / intracellularly gated calcium channel activity / Ion transport by P-type ATPases / : / Uptake and function of anthrax toxins / Long-term potentiation / Regulation of MECP2 expression and activity / Calcineurin activates NFAT / catalytic complex / DARPP-32 events / detection of calcium ion / regulation of cardiac muscle contraction / smooth muscle contraction / Smooth Muscle Contraction / response to vitamin E / regulation of ryanodine-sensitive calcium-release channel activity / RHO GTPases activate IQGAPs / smooth endoplasmic reticulum / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / calcium channel inhibitor activity / cellular response to interferon-beta / eNOS activation / Protein methylation / voltage-gated potassium channel complex / cardiac muscle contraction / Activation of AMPK downstream of NMDARs / striated muscle contraction / T cell proliferation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.12 Å | ||||||
Authors | Miotto, M.C. / Marks, A.R. | ||||||
Funding support | United States, 1items
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Citation | Journal: Nat Commun / Year: 2024 Title: Structural basis for ryanodine receptor type 2 leak in heart failure and arrhythmogenic disorders. Authors: Marco C Miotto / Steven Reiken / Anetta Wronska / Qi Yuan / Haikel Dridi / Yang Liu / Gunnar Weninger / Carl Tchagou / Andrew R Marks / Abstract: Heart failure, the leading cause of mortality and morbidity in the developed world, is characterized by cardiac ryanodine receptor 2 channels that are hyperphosphorylated, oxidized, and depleted of ...Heart failure, the leading cause of mortality and morbidity in the developed world, is characterized by cardiac ryanodine receptor 2 channels that are hyperphosphorylated, oxidized, and depleted of the stabilizing subunit calstabin-2. This results in a diastolic sarcoplasmic reticulum Ca leak that impairs cardiac contractility and triggers arrhythmias. Genetic mutations in ryanodine receptor 2 can also cause Ca leak, leading to arrhythmias and sudden cardiac death. Here, we solved the cryogenic electron microscopy structures of ryanodine receptor 2 variants linked either to heart failure or inherited sudden cardiac death. All are in the primed state, part way between closed and open. Binding of Rycal drugs to ryanodine receptor 2 channels reverts the primed state back towards the closed state, decreasing Ca leak, improving cardiac function, and preventing arrhythmias. We propose a structural-physiological mechanism whereby the ryanodine receptor 2 channel primed state underlies the arrhythmias in heart failure and arrhythmogenic disorders. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8uxl.cif.gz | 3 MB | Display | PDBx/mmCIF format |
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PDB format | pdb8uxl.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 8uxl.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8uxl_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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Full document | 8uxl_full_validation.pdf.gz | 1.9 MB | Display | |
Data in XML | 8uxl_validation.xml.gz | 440.7 KB | Display | |
Data in CIF | 8uxl_validation.cif.gz | 669.4 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ux/8uxl ftp://data.pdbj.org/pub/pdb/validation_reports/ux/8uxl | HTTPS FTP |
-Related structure data
Related structure data | 42768MC 8uq2C 8uq3C 8uq4C 8uq5C 8uxcC 8uxeC 8uxfC 8uxgC 8uxhC 8uxiC 8uxmC C: citing same article (ref.) M: map data used to model this data |
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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
-Protein , 3 types, 12 molecules ABCDEFGHIJLK
#1: Protein | Mass: 565315.125 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: Protein | Mass: 16852.545 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CALM1, CALM, CAM, CAM1 / Production host: Escherichia coli (E. coli) / References: UniProt: P0DP23 |
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-Non-polymers , 3 types, 32 molecules
#4: Chemical | ChemComp-ZN / #5: Chemical | ChemComp-ATP / #6: Chemical | ChemComp-CA / |
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-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-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 (natural) |
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Source (recombinant) |
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Buffer solution | pH: 7.4 / Details: 0.020 mM Calmodulin was added to the final sample | |||||||||||||||||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 2.5 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: 500 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 100 K / Temperature (min): 80 K |
Image recording | Electron dose: 58 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
EM imaging optics | Energyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV |
Image scans | Sampling size: 5 µm / Width: 5760 / Height: 4092 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.12 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 77625 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 7UA5 Accession code: 7UA5 / Source name: PDB / Type: experimental model | |||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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