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- PDB-6x32: Wt pig RyR1 in complex with apoCaM, EGTA condition (class 1 and 2... -
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Basic information
Entry | Database: PDB / ID: 6x32 | ||||||
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Title | Wt pig RyR1 in complex with apoCaM, EGTA condition (class 1 and 2, closed) | ||||||
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![]() | TRANSPORT PROTEIN/ISOMERASE/CALCIUM BINDING PROTEIN / receptor / calcium / channel / complex / TRANSPORT PROTEIN-ISOMERASE-CALCIUM BINDING PROTEIN complex | ||||||
Function / homology | ![]() positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of insulin secretion involved in cellular response to glucose stimulus / negative regulation of release of sequestered calcium ion into cytosol / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / cell communication by electrical coupling involved in cardiac conduction ...positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of insulin secretion involved in cellular response to glucose stimulus / negative regulation of release of sequestered calcium ion into cytosol / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / cell communication by electrical coupling involved in cardiac conduction / Calmodulin induced events / response to redox state / protein maturation by protein folding / Reduction of cytosolic Ca++ levels / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Activation of Ca-permeable Kainate Receptor / 'de novo' protein folding / Loss of phosphorylation of MECP2 at T308 / 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 / positive regulation of cyclic-nucleotide phosphodiesterase activity / Glycogen breakdown (glycogenolysis) / negative regulation of heart rate / organelle localization by membrane tethering / negative regulation of calcium ion export across plasma membrane / CLEC7A (Dectin-1) induces NFAT activation / regulation of cardiac muscle cell action potential / autophagosome membrane docking / mitochondrion-endoplasmic reticulum membrane tethering / negative regulation of phosphoprotein phosphatase activity / Activation of RAC1 downstream of NMDARs / FK506 binding / positive regulation of ryanodine-sensitive calcium-release channel activity / regulation of cell communication by electrical coupling involved in cardiac conduction / positive regulation of axon regeneration / Negative regulation of NMDA receptor-mediated neuronal transmission / negative regulation of peptidyl-threonine phosphorylation / Synthesis of IP3 and IP4 in the cytosol / Unblocking of NMDA receptors, glutamate binding and activation / Phase 0 - rapid depolarisation / protein phosphatase activator activity / RHO GTPases activate PAKs / positive regulation of phosphoprotein phosphatase activity / Ion transport by P-type ATPases / Long-term potentiation / Uptake and function of anthrax toxins / : / Regulation of MECP2 expression and activity / Calcineurin activates NFAT / catalytic complex / DARPP-32 events / detection of calcium ion / smooth muscle contraction / regulation of cardiac muscle contraction / negative regulation of ryanodine-sensitive calcium-release channel activity / Smooth Muscle Contraction / response to vitamin E / calcium channel inhibitor activity / RHO GTPases activate IQGAPs / cellular response to interferon-beta / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / Protein methylation / protein peptidyl-prolyl isomerization / eNOS activation / Activation of AMPK downstream of NMDARs / T cell proliferation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / release of sequestered calcium ion into cytosol / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / positive regulation of protein dephosphorylation / regulation of calcium-mediated signaling / Ion homeostasis / titin binding / regulation of ryanodine-sensitive calcium-release channel activity / voltage-gated potassium channel complex / positive regulation of protein autophosphorylation / sperm midpiece / sarcoplasmic reticulum membrane / calcium channel complex / regulation of cytosolic calcium ion concentration / substantia nigra development / adenylate cyclase activator activity / Ras activation upon Ca2+ influx through NMDA receptor / regulation of heart rate / sarcomere / protein serine/threonine kinase activator activity / FCERI mediated Ca+2 mobilization / FCGR3A-mediated IL10 synthesis / VEGFR2 mediated vascular permeability / positive regulation of peptidyl-threonine phosphorylation / regulation of cytokinesis / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / VEGFR2 mediated cell proliferation / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / Translocation of SLC2A4 (GLUT4) to the plasma membrane / RAF activation / positive regulation of receptor signaling pathway via JAK-STAT Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å | ||||||
![]() | Woll, K.W. / Haji-Ghassemi, O. / Van Petegem, F. | ||||||
Funding support | 1items
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![]() | ![]() Title: Pathological conformations of disease mutant Ryanodine Receptors revealed by cryo-EM. Authors: Kellie A Woll / Omid Haji-Ghassemi / Filip Van Petegem / ![]() Abstract: Ryanodine Receptors (RyRs) are massive channels that release Ca from the endoplasmic and sarcoplasmic reticulum. Hundreds of mutations are linked to malignant hyperthermia (MH), myopathies, and ...Ryanodine Receptors (RyRs) are massive channels that release Ca from the endoplasmic and sarcoplasmic reticulum. Hundreds of mutations are linked to malignant hyperthermia (MH), myopathies, and arrhythmias. Here, we explore the first MH mutation identified in humans by providing cryo-EM snapshots of the pig homolog, R615C, showing that it affects an interface between three solenoid regions. We also show the impact of apo-calmodulin (apoCaM) and how it can induce opening by bending of the bridging solenoid, mediated by its N-terminal lobe. For R615C RyR1, apoCaM binding abolishes a pathological 'intermediate' conformation, distributing the population to a mixture of open and closed channels, both different from the structure without apoCaM. Comparisons show that the mutation primarily affects the closed state, inducing partial movements linked to channel activation. This shows that disease mutations can cause distinct pathological conformations of the RyR and facilitate channel opening by disrupting interactions between different solenoid regions. | ||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 2.5 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
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-Validation report
Summary document | ![]() | 953.2 KB | Display | ![]() |
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Full document | ![]() | 1023.3 KB | Display | |
Data in XML | ![]() | 333.9 KB | Display | |
Data in CIF | ![]() | 533.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 22015MC ![]() 6w1nC ![]() 6x33C ![]() 6x34C ![]() 6x35C ![]() 6x36C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 11939.562 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein | Mass: 422853.312 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #3: Protein | Mass: 16521.094 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #4: 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 |
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Sample preparation
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Source (natural) |
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Source (recombinant) |
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Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Specimen support | Details: unspecified | ||||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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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: ![]() |
Electron lens | Mode: DIFFRACTION |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k) |
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Processing
EM software | Name: PHENIX / Version: dev-3714 / Category: 3D reconstruction |
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CTF correction | Type: NONE |
Symmetry | Point symmetry: C4 (4 fold cyclic) |
3D reconstruction | Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 44957 / Symmetry type: POINT |