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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 / negative regulation of calcium-mediated signaling / 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 / insulin secretion involved in cellular response to glucose stimulus / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / Calmodulin induced events ...positive regulation of sequestering of calcium ion / negative regulation of calcium-mediated signaling / 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 / insulin secretion involved in cellular response to glucose stimulus / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / Calmodulin induced events / response to redox state / Reduction of cytosolic Ca++ levels / Activation of Ca-permeable Kainate Receptor / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Loss of phosphorylation of MECP2 at T308 / 'de novo' protein folding / CREB1 phosphorylation through the activation of Adenylate Cyclase / CaMK IV-mediated phosphorylation of CREB / PKA activation / negative regulation of high voltage-gated calcium channel activity / negative regulation of heart rate / Glycogen breakdown (glycogenolysis) / CLEC7A (Dectin-1) induces NFAT activation / Activation of RAC1 downstream of NMDARs / negative regulation of ryanodine-sensitive calcium-release channel activity / organelle localization by membrane tethering / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / FK506 binding / negative regulation of calcium ion export across plasma membrane / regulation of cardiac muscle cell action potential / presynaptic endocytosis / Synthesis of IP3 and IP4 in the cytosol / regulation of cell communication by electrical coupling involved in cardiac conduction / Phase 0 - rapid depolarisation / calcineurin-mediated signaling / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / RHO GTPases activate PAKs / Ion transport by P-type ATPases / Uptake and function of anthrax toxins / regulation of ryanodine-sensitive calcium-release channel activity / Long-term potentiation / protein phosphatase activator activity / Calcineurin activates NFAT / Regulation of MECP2 expression and activity / smooth muscle contraction / DARPP-32 events / catalytic complex / Smooth Muscle Contraction / detection of calcium ion / regulation of cardiac muscle contraction / RHO GTPases activate IQGAPs / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / T cell proliferation / cellular response to interferon-beta / Protein methylation / calcium channel inhibitor activity / presynaptic cytosol / Activation of AMPK downstream of NMDARs / Ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / eNOS activation / titin binding / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / sperm midpiece / regulation of calcium-mediated signaling / release of sequestered calcium ion into cytosol / voltage-gated potassium channel complex / calcium channel complex / substantia nigra development / FCERI mediated Ca+2 mobilization / sarcoplasmic reticulum membrane / Ras activation upon Ca2+ influx through NMDA receptor / regulation of heart rate / FCGR3A-mediated IL10 synthesis / calyx of Held / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / protein maturation / adenylate cyclase activator activity / sarcomere / VEGFR2 mediated cell proliferation / regulation of cytokinesis / protein serine/threonine kinase activator activity / VEGFR2 mediated vascular permeability / spindle microtubule / calcium channel regulator activity / Translocation of SLC2A4 (GLUT4) to the plasma membrane / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / positive regulation of receptor signaling pathway via JAK-STAT / Stimuli-sensing channels / RAF activation / calcium-mediated signaling / Transcriptional activation of mitochondrial biogenesis / RAS processing / cellular response to type II interferon / Z disc / long-term synaptic potentiation / response to calcium ion 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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-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 |