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- PDB-8uxm: Structure of PKA phosphorylated human RyR2-R420W in the open stat... -

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Basic information

Entry
Database: PDB / ID: 8uxm
TitleStructure of PKA phosphorylated human RyR2-R420W in the open state in the presence of calcium and calmodulin
Components
  • Calmodulin-1
  • Peptidyl-prolyl cis-trans isomerase FKBP1B
  • Ryanodine receptor 2
KeywordsMEMBRANE PROTEIN / calcium channel
Function / homology
Function and homology information


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 ...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 / CaM pathway / regulation of cardiac muscle contraction by calcium ion signaling / response to caffeine / Cam-PDE 1 activation / Sodium/Calcium exchangers / response to redox state / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Calmodulin induced events / 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 / negative regulation of heart rate / Loss of phosphorylation of MECP2 at T308 / CREB1 phosphorylation through the activation of Adenylate Cyclase / cellular response to caffeine / CaMK IV-mediated phosphorylation of CREB / PKA activation / negative regulation of high voltage-gated calcium channel activity / 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 / response to muscle activity / presynaptic endocytosis / protein kinase A regulatory subunit binding / Synthesis of IP3 and IP4 in the cytosol / protein kinase A catalytic subunit binding / regulation of cell communication by electrical coupling involved in cardiac conduction / positive regulation of the force of heart contraction / Phase 0 - rapid depolarisation / calcineurin-mediated signaling / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / intracellularly gated calcium channel activity / smooth endoplasmic reticulum / RHO GTPases activate PAKs / Ion transport by P-type ATPases / Uptake and function of anthrax toxins / regulation of ryanodine-sensitive calcium-release channel activity / protein phosphatase activator activity / Long-term potentiation / smooth muscle contraction / Calcineurin activates NFAT / Regulation of MECP2 expression and activity / DARPP-32 events / catalytic complex / Smooth Muscle Contraction / detection of calcium ion / regulation of cardiac muscle contraction / regulation of cytosolic calcium ion concentration / RHO GTPases activate IQGAPs / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / T cell proliferation / positive regulation of heart rate / cellular response to interferon-beta / Protein methylation / calcium channel inhibitor activity / Activation of AMPK downstream of NMDARs / presynaptic cytosol / cardiac muscle contraction / 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 / response to muscle stretch / regulation of calcium-mediated signaling / release of sequestered calcium ion into cytosol
Similarity search - Function
Ryanodine receptor, SPRY domain 2 / : / Ryanodine receptor junctional solenoid repeat / Ryanodine Receptor TM 4-6 / Ryanodine receptor / Ryanodine receptor, SPRY domain 1 / Ryanodine receptor, SPRY domain 3 / Ryanodine Receptor TM 4-6 / Ryanodine receptor Ryr / RyR domain ...Ryanodine receptor, SPRY domain 2 / : / Ryanodine receptor junctional solenoid repeat / Ryanodine Receptor TM 4-6 / Ryanodine receptor / Ryanodine receptor, SPRY domain 1 / Ryanodine receptor, SPRY domain 3 / Ryanodine Receptor TM 4-6 / Ryanodine receptor Ryr / RyR domain / : / RyR/IP3 receptor binding core, RIH domain superfamily / RyR/IP3R Homology associated domain / Inositol 1,4,5-trisphosphate/ryanodine receptor / RIH domain / RyR and IP3R Homology associated / Inositol 1,4,5-trisphosphate/ryanodine receptor / RIH domain / : / MIR motif / MIR domain / MIR domain profile. / Domain in ryanodine and inositol trisphosphate receptors and protein O-mannosyltransferases / Mir domain superfamily / SPRY domain / B30.2/SPRY domain / B30.2/SPRY domain profile. / B30.2/SPRY domain superfamily / Domain in SPla and the RYanodine Receptor. / SPRY domain / FKBP-type peptidyl-prolyl cis-trans isomerase / FKBP-type peptidyl-prolyl cis-trans isomerase domain / FKBP-type peptidyl-prolyl cis-trans isomerase domain profile. / 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 / Ion transport domain / Ion transport protein / EF-hand domain pair / Concanavalin A-like lectin/glucanase domain superfamily
Similarity search - Domain/homology
ADENOSINE-5'-TRIPHOSPHATE / Calmodulin-1 / Peptidyl-prolyl cis-trans isomerase FKBP1B / Ryanodine receptor 2
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.56 Å
AuthorsMiotto, M.C. / Marks, A.R.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)R01HL145473 United States
CitationJournal: Nat Commun / Year: 2024
Title: Structural basis for ryanodine receptor type 2 leak in heart failure and arrhythmogenic disorders.
Authors: Marco C Miotto / Steven Reiken / Anetta Wronska / Qi Yuan / Haikel Dridi / Yang Liu / Gunnar Weninger / Carl Tchagou / Andrew R Marks /
Abstract: Heart failure, the leading cause of mortality and morbidity in the developed world, is characterized by cardiac ryanodine receptor 2 channels that are hyperphosphorylated, oxidized, and depleted of ...Heart failure, the leading cause of mortality and morbidity in the developed world, is characterized by cardiac ryanodine receptor 2 channels that are hyperphosphorylated, oxidized, and depleted of the stabilizing subunit calstabin-2. This results in a diastolic sarcoplasmic reticulum Ca leak that impairs cardiac contractility and triggers arrhythmias. Genetic mutations in ryanodine receptor 2 can also cause Ca leak, leading to arrhythmias and sudden cardiac death. Here, we solved the cryogenic electron microscopy structures of ryanodine receptor 2 variants linked either to heart failure or inherited sudden cardiac death. All are in the primed state, part way between closed and open. Binding of Rycal drugs to ryanodine receptor 2 channels reverts the primed state back towards the closed state, decreasing Ca leak, improving cardiac function, and preventing arrhythmias. We propose a structural-physiological mechanism whereby the ryanodine receptor 2 channel primed state underlies the arrhythmias in heart failure and arrhythmogenic disorders.
History
DepositionNov 9, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 22, 2023Provider: repository / Type: Initial release
Revision 1.1Oct 2, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _em_admin.last_update
Revision 1.2Oct 16, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
I: Calmodulin-1
A: Ryanodine receptor 2
E: Peptidyl-prolyl cis-trans isomerase FKBP1B
F: Peptidyl-prolyl cis-trans isomerase FKBP1B
G: Peptidyl-prolyl cis-trans isomerase FKBP1B
H: Peptidyl-prolyl cis-trans isomerase FKBP1B
J: Calmodulin-1
L: Calmodulin-1
K: Calmodulin-1
B: Ryanodine receptor 2
C: Ryanodine receptor 2
D: Ryanodine receptor 2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)2,380,98544
Polymers2,375,86512
Non-polymers5,12132
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 3 types, 12 molecules IJLKABCDEFGH

#1: 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
#2: Protein
Ryanodine receptor 2 / RYR-2 / RyR2 / hRYR-2 / Cardiac muscle ryanodine receptor / Cardiac muscle ryanodine receptor- ...RYR-2 / RyR2 / hRYR-2 / Cardiac muscle ryanodine receptor / Cardiac muscle ryanodine receptor-calcium release channel / Type 2 ryanodine receptor


Mass: 565315.125 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RYR2 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q92736
#3: 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

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Non-polymers , 3 types, 32 molecules

#4: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 20 / Source method: obtained synthetically / Formula: Ca / Feature type: SUBJECT OF INVESTIGATION
#5: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
#6: Chemical
ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Feature type: SUBJECT OF INVESTIGATION / Comment: ATP, energy-carrying molecule*YM

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Details

Has ligand of interestY
Has protein modificationY

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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

Component
IDNameTypeEntity IDParent-IDSource
1Complex of RyR2-R420W, Calstabin-2, and CalmodulinCOMPLEX#1-#30RECOMBINANT
2Ryanodine Receptor 2COMPLEX#11RECOMBINANT
3Peptidyl- cis-trans isomerase FKBP1BCOMPLEX#21RECOMBINANT
4CalmodulinCOMPLEX#31RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
23Homo sapiens (human)9606
34Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-IDCell
12Homo sapiens (human)9606HEK293
23Escherichia coli (E. coli)562
34Escherichia coli (E. coli)562
Buffer solutionpH: 7.4 / Details: 0.020 mM Calmodulin was added to the final sample
Buffer component
IDConc.NameFormulaBuffer-ID
1230 mMsodium chlorideNaCl1
210 mMHEPESHEPES1
30.4 %CHAPSCHAPS1
41 mMEGTAEGTA1
50.5 mMtris(2-carboxyethyl)phosphineTCEP1
60.001 %DOPCDOPC1
710 mMATPATP1
81.7 mMcalcium chlorideCaCl21
SpecimenConc.: 2.5 mg/ml / Embedding 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 FIELD / Nominal defocus max: 1200 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 100 K / Temperature (min): 80 K
Image recordingElectron dose: 58 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)
EM imaging opticsEnergyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV
Image scansSampling size: 5 µm / Width: 5760 / Height: 4092

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Processing

EM software
IDNameVersionCategoryDetails
1cryoSPARCparticle selection
2Leginon3.5image acquisitionMSI-T2
4cryoSPARCCTF correction
7Cootmodel fitting
9PHENIXmodel refinement
10cryoSPARCinitial Euler assignment
12cryoSPARCclassification
13cryoSPARC3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.56 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 49606 / Symmetry type: POINT
Atomic model buildingPDB-ID: 7UA5

7ua5


Accession code: 7UA5 / Source name: PDB / Type: experimental model
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.011146568
ELECTRON MICROSCOPYf_angle_d0.683197972
ELECTRON MICROSCOPYf_dihedral_angle_d6.08219416
ELECTRON MICROSCOPYf_chiral_restr0.04121688
ELECTRON MICROSCOPYf_plane_restr0.00525472

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