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- PDB-6ji8: Structure of RyR2 (F/apoCaM dataset) -

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Basic information

Entry
Database: PDB / ID: 6ji8
TitleStructure of RyR2 (F/apoCaM dataset)
Components
  • Calmodulin-1
  • Peptidyl-prolyl cis-trans isomerase FKBP1B
  • RyR2Ryanodine receptor 2
KeywordsMEMBRANE PROTEIN / cryo-EM
Function / homology
Function and homology information


positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of release of sequestered calcium ion into cytosol / negative regulation of insulin secretion involved in cellular response to glucose stimulus / 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 release of sequestered calcium ion into cytosol / negative regulation of insulin secretion involved in cellular response to glucose stimulus / 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 / response to redox state / Calmodulin induced events / protein maturation by protein folding / Reduction of cytosolic Ca++ levels / Activation of Ca-permeable Kainate Receptor / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / 'de novo' protein folding / Loss of phosphorylation of MECP2 at T308 / CREB1 phosphorylation through the activation of Adenylate Cyclase / negative regulation of heart rate / PKA activation / negative regulation of high voltage-gated calcium channel activity / CaMK IV-mediated phosphorylation of CREB / Glycogen breakdown (glycogenolysis) / negative regulation of calcium ion export across plasma membrane / organelle localization by membrane tethering / Activation of RAC1 downstream of NMDARs / regulation of cardiac muscle cell action potential / mitochondrion-endoplasmic reticulum membrane tethering / CLEC7A (Dectin-1) induces NFAT activation / negative regulation of phosphoprotein phosphatase activity / FK506 binding / autophagosome membrane docking / positive regulation of axon regeneration / positive regulation of ryanodine-sensitive calcium-release channel activity / Negative regulation of NMDA receptor-mediated neuronal transmission / regulation of cell communication by electrical coupling involved in cardiac conduction / Unblocking of NMDA receptors, glutamate binding and activation / negative regulation of peptidyl-threonine phosphorylation / Synthesis of IP3 and IP4 in the cytosol / Phase 0 - rapid depolarisation / protein phosphatase activator activity / RHO GTPases activate PAKs / positive regulation of cyclic-nucleotide phosphodiesterase activity / positive regulation of phosphoprotein phosphatase activity / Long-term potentiation / Ion transport by P-type ATPases / 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 / Smooth Muscle Contraction / negative regulation of ryanodine-sensitive calcium-release channel activity / RHO GTPases activate IQGAPs / response to vitamin E / cellular response to interferon-beta / regulation of cardiac muscle contraction / calcium channel inhibitor activity / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / Protein methylation / protein peptidyl-prolyl isomerization / voltage-gated potassium channel complex / T cell proliferation / Activation of AMPK downstream of NMDARs / eNOS activation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / regulation of calcium-mediated signaling / release of sequestered calcium ion into cytosol / positive regulation of protein dephosphorylation / titin binding / regulation of ryanodine-sensitive calcium-release channel activity / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / Ion homeostasis / 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 / protein serine/threonine kinase activator activity / sarcomere / FCERI mediated Ca+2 mobilization / FCGR3A-mediated IL10 synthesis / VEGFR2 mediated vascular permeability / positive regulation of peptidyl-threonine phosphorylation / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / VEGFR2 mediated cell proliferation / regulation of cytokinesis / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / Translocation of SLC2A4 (GLUT4) to the plasma membrane / spindle microtubule / RAF activation
Similarity search - Function
FKBP-type peptidyl-prolyl cis-trans isomerase domain profile. / FKBP-type peptidyl-prolyl cis-trans isomerase domain / FKBP-type peptidyl-prolyl cis-trans isomerase / Peptidyl-prolyl cis-trans isomerase domain superfamily / EF-hand domain pair / EF-hand, calcium binding motif / EF-Hand 1, calcium-binding site / EF-hand calcium-binding domain. / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair
Similarity search - Domain/homology
Calmodulin-1 / Peptidyl-prolyl cis-trans isomerase FKBP1B
Similarity search - Component
Biological speciesHomo sapiens (human)
Sus scrofa (pig)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å
AuthorsGong, D.S. / Chi, X.M. / Zhou, G.W. / Huang, G.X.Y. / Lei, J.L. / Yan, N.
CitationJournal: Nature / Year: 2019
Title: Modulation of cardiac ryanodine receptor 2 by calmodulin.
Authors: Deshun Gong / Ximin Chi / Jinhong Wei / Gewei Zhou / Gaoxingyu Huang / Lin Zhang / Ruiwu Wang / Jianlin Lei / S R Wayne Chen / Nieng Yan /
Abstract: The high-conductance intracellular calcium (Ca) channel RyR2 is essential for the coupling of excitation and contraction in cardiac muscle. Among various modulators, calmodulin (CaM) regulates RyR2 ...The high-conductance intracellular calcium (Ca) channel RyR2 is essential for the coupling of excitation and contraction in cardiac muscle. Among various modulators, calmodulin (CaM) regulates RyR2 in a Ca-dependent manner. Here we reveal the regulatory mechanism by which porcine RyR2 is modulated by human CaM through the structural determination of RyR2 under eight conditions. Apo-CaM and Ca-CaM bind to distinct but overlapping sites in an elongated cleft formed by the handle, helical and central domains. The shift in CaM-binding sites on RyR2 is controlled by Ca binding to CaM, rather than to RyR2. Ca-CaM induces rotations and intradomain shifts of individual central domains, resulting in pore closure of the PCB95 and Ca-activated channel. By contrast, the pore of the ATP, caffeine and Ca-activated channel remains open in the presence of Ca-CaM, which suggests that Ca-CaM is one of the many competing modulators of RyR2 gating.
History
DepositionFeb 20, 2019Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 17, 2019Provider: repository / Type: Initial release
Revision 1.1Aug 28, 2019Group: Data collection / Database references ...Data collection / Database references / Source and taxonomy / Structure summary
Category: citation / entity ...citation / entity / entity_src_gen / struct_ref / struct_ref_seq
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _entity.pdbx_description / _entity_src_gen.pdbx_gene_src_gene / _struct_ref.db_code / _struct_ref.db_name / _struct_ref.pdbx_db_accession / _struct_ref.pdbx_seq_one_letter_code / _struct_ref_seq.pdbx_db_accession
Revision 1.2Nov 6, 2019Group: Data collection / Other / Category: cell / Item: _cell.Z_PDB
Revision 1.3Mar 27, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
A: RyR2
B: Peptidyl-prolyl cis-trans isomerase FKBP1B
C: Calmodulin-1
D: RyR2
E: Peptidyl-prolyl cis-trans isomerase FKBP1B
F: Calmodulin-1
G: RyR2
H: Peptidyl-prolyl cis-trans isomerase FKBP1B
I: Calmodulin-1
J: RyR2
K: Peptidyl-prolyl cis-trans isomerase FKBP1B
L: Calmodulin-1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)2,374,48816
Polymers2,374,22712
Non-polymers2624
Water0
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
RyR2 / Ryanodine receptor 2


Mass: 564905.625 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig)
#2: Protein
Peptidyl-prolyl cis-trans isomerase FKBP1B / PPIase FKBP1B / 12.6 kDa FK506-binding protein / FKBP-12.6 / FK506-binding protein 1B / FKBP-1B / ...PPIase FKBP1B / 12.6 kDa FK506-binding protein / FKBP-12.6 / FK506-binding protein 1B / FKBP-1B / Immunophilin FKBP12.6 / Rotamase / h-FKBP-12


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
Calmodulin-1 /


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
#4: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Zn

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: RyR2 in complex with FKBP12.6 and apo-CalmodulinRyanodine receptor 2
Type: COMPLEX / Entity ID: #1-#3 / Source: NATURAL
Source (natural)Organism: Sus scrofa (pig)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 45.6 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM software
IDNameVersionCategory
4GctfCTF correction
11RELION2final Euler assignment
13RELION23D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C4 (4 fold cyclic)
3D reconstructionResolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 208715 / Symmetry type: POINT

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