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Open data
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Basic information
| Entry | Database: PDB / ID: 7ua5 | ||||||
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| Title | Structure of dephosphorylated human RyR2 in the closed state | ||||||
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Keywords | MEMBRANE PROTEIN / calcium channel | ||||||
| Function / homology | Function and homology informationjunctional sarcoplasmic reticulum membrane / sarcoplasmic reticulum calcium ion transport / establishment of protein localization to endoplasmic reticulum / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / calcium-induced calcium release activity / regulation of atrial cardiac muscle cell action potential / left ventricular cardiac muscle tissue morphogenesis / suramin binding / regulation of AV node cell action potential ...junctional sarcoplasmic reticulum membrane / sarcoplasmic reticulum calcium ion transport / establishment of protein localization to endoplasmic reticulum / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / calcium-induced calcium release activity / regulation of atrial cardiac muscle cell action potential / left ventricular cardiac muscle tissue morphogenesis / suramin binding / regulation of AV node cell action potential / regulation of SA node cell action potential / 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 / 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 / neuronal action potential propagation / negative regulation of release of sequestered calcium ion into cytosol / calcium ion transport into cytosol / insulin secretion involved in cellular response to glucose stimulus / ryanodine-sensitive calcium-release channel activity / regulation of cardiac muscle contraction by calcium ion signaling / response to caffeine / response to redox state / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / 'de novo' protein folding / negative regulation of heart rate / cellular response to caffeine / FK506 binding / response to muscle activity / protein kinase A regulatory subunit binding / protein kinase A catalytic subunit binding / positive regulation of the force of heart contraction / intracellularly gated calcium channel activity / smooth endoplasmic reticulum / smooth muscle contraction / detection of calcium ion / regulation of cardiac muscle contraction / regulation of cytosolic calcium ion concentration / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / T cell proliferation / positive regulation of heart rate / calcium channel inhibitor activity / cardiac muscle contraction / Ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / response to muscle stretch / release of sequestered calcium ion into cytosol / cellular response to epinephrine stimulus / calcium channel complex / sarcoplasmic reticulum membrane / regulation of heart rate / sarcoplasmic reticulum / protein maturation / calcium channel regulator activity / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / establishment of localization in cell / calcium-mediated signaling / sarcolemma / calcium channel activity / 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 / cytoplasm Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.83 Å | ||||||
Authors | Miotto, M.C. / Marks, A.R. | ||||||
| Funding support | United States, 1items
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Citation | Journal: Sci Adv / Year: 2022Title: 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. | ||||||
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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 | 7ua5.cif.gz | 3 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb7ua5.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 7ua5.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7ua5_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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| Full document | 7ua5_full_validation.pdf.gz | 1.7 MB | Display | |
| Data in XML | 7ua5_validation.xml.gz | 411 KB | Display | |
| Data in CIF | 7ua5_validation.cif.gz | 630.7 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ua/7ua5 ftp://data.pdbj.org/pub/pdb/validation_reports/ua/7ua5 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 26415MC ![]() 7u9qC ![]() 7u9rC ![]() 7u9tC ![]() 7u9xC ![]() 7u9zC ![]() 7ua1C ![]() 7ua3C ![]() 7ua4C ![]() 7ua9C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Assembly
| Deposited unit | ![]()
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| Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments:
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About Yorodumi




Homo sapiens (human)
United States, 1items
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