- PDB-6x32: Wt pig RyR1 in complex with apoCaM, EGTA condition (class 1 and 2... -
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基本情報
登録情報
データベース: PDB / ID: 6x32
タイトル
Wt pig RyR1 in complex with apoCaM, EGTA condition (class 1 and 2, closed)
要素
Calmodulin-1
Peptidyl-prolyl cis-trans isomerase FKBP1B
Ryanodine Receptor
キーワード
TRANSPORT PROTEIN/ISOMERASE/CALCIUM BINDING PROTEIN / receptor / calcium / channel / complex / TRANSPORT PROTEIN-ISOMERASE-CALCIUM BINDING PROTEIN complex
機能・相同性
機能・相同性情報
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 / 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 / CLEC7A (Dectin-1) induces NFAT activation / regulation of cardiac muscle cell action potential / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / negative regulation of phosphoprotein phosphatase activity / Activation of RAC1 downstream of NMDARs / 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 / 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 / : / Calcineurin activates NFAT / Regulation of MECP2 expression and activity / 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 / RHO GTPases activate IQGAPs / calcium channel inhibitor activity / 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 / T cell proliferation / Activation of AMPK downstream of NMDARs / 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 / Ion homeostasis / regulation of calcium-mediated signaling / regulation of ryanodine-sensitive calcium-release channel activity / titin binding / positive regulation of protein autophosphorylation / voltage-gated potassium channel complex / 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 / positive regulation of receptor signaling pathway via JAK-STAT / RAF activation 類似検索 - 分子機能
ジャーナル: Nat Commun / 年: 2021 タイトル: Pathological conformations of disease mutant Ryanodine Receptors revealed by cryo-EM. 著者: Kellie A Woll / Omid Haji-Ghassemi / Filip Van Petegem / 要旨: 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.