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- EMDB-26415: Structure of dephosphorylated human RyR2 in the closed state -

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Basic information

Entry
Database: EMDB / ID: EMD-26415
TitleStructure of dephosphorylated human RyR2 in the closed state
Map dataComposite map of the Structure of dephosphorylated human RyR2 in the closed state.
Sample
  • Complex: Complex of RyR2 and Calstabin-2
    • Complex: Ryanodine receptor 2
      • Protein or peptide: Ryanodine receptor 2
    • Complex: Peptidyl-prolyl cis-trans isomerase FKBP1B
      • Protein or peptide: Peptidyl-prolyl cis-trans isomerase FKBP1B
  • Ligand: ZINC ION
  • Ligand: ADENOSINE-5'-TRIPHOSPHATE
Keywordscalcium channel / MEMBRANE PROTEIN
Function / homology
Function and homology information


junctional sarcoplasmic reticulum membrane / establishment of protein localization to endoplasmic reticulum / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / suramin binding / regulation of SA node cell action potential / regulation of atrial cardiac muscle cell action potential / left ventricular cardiac muscle tissue morphogenesis / regulation of AV node cell action potential / calcium-induced calcium release activity ...junctional sarcoplasmic reticulum membrane / establishment of protein localization to endoplasmic reticulum / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / suramin binding / regulation of SA node cell action potential / regulation of atrial cardiac muscle cell action potential / left ventricular cardiac muscle tissue morphogenesis / regulation of AV node cell action potential / calcium-induced calcium release activity / sarcoplasmic reticulum calcium ion transport / 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 / cyclic nucleotide binding / 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 / regulation of cardiac muscle contraction by calcium ion signaling / negative regulation of release of sequestered calcium ion into cytosol / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus / ryanodine-sensitive calcium-release channel activity / response to caffeine / calcium ion transport into cytosol / response to muscle activity / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / response to redox state / protein maturation by protein folding / 'de novo' protein folding / negative regulation of heart rate / positive regulation of heart rate / FK506 binding / positive regulation of axon regeneration / protein kinase A regulatory subunit binding / cellular response to caffeine / protein kinase A catalytic subunit binding / channel regulator activity / positive regulation of the force of heart contraction / intracellularly gated calcium channel activity / detection of calcium ion / regulation of cardiac muscle contraction / smooth muscle contraction / response to vitamin E / smooth endoplasmic reticulum / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / calcium channel inhibitor activity / cardiac muscle contraction / striated muscle contraction / T cell proliferation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Ion homeostasis / release of sequestered calcium ion into cytosol / regulation of cytosolic calcium ion concentration / calcium channel complex / cellular response to epinephrine stimulus / response to muscle stretch / sarcoplasmic reticulum membrane / regulation of heart rate / sarcoplasmic reticulum / establishment of localization in cell / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / calcium-mediated signaling / calcium channel activity / response to hydrogen peroxide / sarcolemma / Stimuli-sensing channels / Z disc / intracellular calcium ion homeostasis / calcium ion transport / positive regulation of cytosolic calcium ion concentration / protein refolding / transmembrane transporter binding / calmodulin binding / response to hypoxia / signaling receptor binding / calcium ion binding / enzyme binding / protein-containing complex / identical protein binding / membrane / plasma membrane / cytosol / cytoplasm
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 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 domain / Ion transport domain / Ion transport protein / EF-hand domain pair / Concanavalin A-like lectin/glucanase domain superfamily
Similarity search - Domain/homology
Peptidyl-prolyl cis-trans isomerase FKBP1B / Ryanodine receptor 2
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.83 Å
AuthorsMiotto MC / Marks AR
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)R01HL145473 United States
CitationJournal: Sci Adv / Year: 2022
Title: Structural analyses of human ryanodine receptor type 2 channels reveal the mechanisms for sudden cardiac death and treatment.
Authors: Marco C Miotto / Gunnar Weninger / Haikel Dridi / Qi Yuan / Yang Liu / Anetta Wronska / Zephan Melville / Leah Sittenfeld / Steven Reiken / Andrew R Marks /
Abstract: Ryanodine receptor type 2 (RyR2) mutations have been linked to an inherited form of exercise-induced sudden cardiac death called catecholaminergic polymorphic ventricular tachycardia (CPVT). CPVT ...Ryanodine receptor type 2 (RyR2) mutations have been linked to an inherited form of exercise-induced sudden cardiac death called catecholaminergic polymorphic ventricular tachycardia (CPVT). CPVT results from stress-induced sarcoplasmic reticular Ca leak via the mutant RyR2 channels during diastole. We present atomic models of human wild-type (WT) RyR2 and the CPVT mutant RyR2-R2474S determined by cryo-electron microscopy with overall resolutions in the range of 2.6 to 3.6 Å, and reaching local resolutions of 2.25 Å, unprecedented for RyR2 channels. Under nonactivating conditions, the RyR2-R2474S channel is in a "primed" state between the closed and open states of WT RyR2, rendering it more sensitive to activation that results in stress-induced Ca leak. The Rycal drug ARM210 binds to RyR2-R2474S, reverting the primed state toward the closed state. Together, these studies provide a mechanism for CPVT and for the therapeutic actions of ARM210.
History
DepositionMar 11, 2022-
Header (metadata) releaseAug 3, 2022-
Map releaseAug 3, 2022-
UpdateOct 23, 2024-
Current statusOct 23, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_26415.png

Downloads & links

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Map

FileDownload / File: emd_26415.map.gz / Format: CCP4 / Size: 512 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationComposite map of the Structure of dephosphorylated human RyR2 in the closed state.
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.84 Å/pix.
x 512 pix.
= 428.544 Å		0.84 Å/pix.
x 512 pix.
= 428.544 Å		0.84 Å/pix.
x 512 pix.
= 428.544 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.837 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.13
Minimum - Maximum-0.0071546235 - 0.66699874
Average (Standard dev.)0.012527637 (±0.03307495)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions512512512
Spacing512512512
CellA=B=C: 428.544 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : Complex of RyR2 and Calstabin-2

EntireName: Complex of RyR2 and Calstabin-2
Components
  • Complex: Complex of RyR2 and Calstabin-2
    • Complex: Ryanodine receptor 2
      • Protein or peptide: Ryanodine receptor 2
    • Complex: Peptidyl-prolyl cis-trans isomerase FKBP1B
      • Protein or peptide: Peptidyl-prolyl cis-trans isomerase FKBP1B
  • Ligand: ZINC ION
  • Ligand: ADENOSINE-5'-TRIPHOSPHATE

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Supramolecule #1: Complex of RyR2 and Calstabin-2

SupramoleculeName: Complex of RyR2 and Calstabin-2 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2

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Supramolecule #2: Ryanodine receptor 2

SupramoleculeName: Ryanodine receptor 2 / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #3: Peptidyl-prolyl cis-trans isomerase FKBP1B

SupramoleculeName: Peptidyl-prolyl cis-trans isomerase FKBP1B / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Ryanodine receptor 2

MacromoleculeName: Ryanodine receptor 2 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 565.286125 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MADGGEGEDE IQFLRTDDEV VLQCTATIHK EQQKLCLAAE GFGNRLCFLE STSNSKNVPP DLSICTFVLE QSLSVRALQE MLANTVEKS EGQVDVEKWK FMMKTAQGGG HRTLLYGHAI LLRHSYSGMY LCCLSTSRSS TDKLAFDVGL QEDTTGEACW W TIHPASKQ ...String:
MADGGEGEDE IQFLRTDDEV VLQCTATIHK EQQKLCLAAE GFGNRLCFLE STSNSKNVPP DLSICTFVLE QSLSVRALQE MLANTVEKS EGQVDVEKWK FMMKTAQGGG HRTLLYGHAI LLRHSYSGMY LCCLSTSRSS TDKLAFDVGL QEDTTGEACW W TIHPASKQ RSEGEKVRVG DDLILVSVSS ERYLHLSYGN GSLHVDAAFQ QTLWSVAPIS SGSEAAQGYL IGGDVLRLLH GH MDECLTV PSGEHGEEQR RTVHYEGGAV SVHARSLWRL ETLRVAWSGS HIRWGQPFRL RHVTTGKYLS LMEDKNLLLM DKE KADVKS TAFTFRSSKE KLDVGVRKEV DGMGTSEIKY GDSVCYIQHV DTGLWLTYQS VDVKSVRMGS IQRKAIMHHE GHMD DGISL SRSQHEESRT ARVIRSTVFL FNRFIRGLDA LSKKAKASTV DLPIESVSLS LQDLIGYFHP PDEHLEHEDK QNRLR ALKN RQNLFQEEGM INLVLECIDR LHVYSSAAHF ADVAGREAGE SWKSILNSLY ELLAALIRGN RKNCAQFSGS LDWLIS RLE RLEASSGILE VLHCVLVESP EALNIIKEGH IKSIISLLDK HGRNHKVLDV LCSLCVCHGV AVRSNQHLIC DNLLPGR DL LLQTRLVNHV SSMRPNIFLG VSEGSAQYKK WYYELMVDHT EPFVTAEATH LRVGWASTEG YSPYPGGGEE WGGNGVGD D LFSYGFDGLH LWSGCIARTV SSPNQHLLRT DDVISCCLDL SAPSISFRIN GQPVQGMFEN FNIDGLFFPV VSFSAGIKV RFLLGGRHGE FKFLPPPGYA PCYEAVLPKE KLKVEHSREY KQERTYTRDL LGPTVSLTQA AFTPIPVDTS QIVLPPHLER IREKLAENI HELWVMNKIE LGWQYGPVRD DNKRQHPCLV EFSKLPEQER NYNLQMSLET LKTLLALGCH VGISDEHAED K VKKMKLPK NYQLTSGYKP APMDLSFIKL TPSQEAMVDK LAENAHNVWA RDRIRQGWTY GIQQDVKNRR NPRLVPYTLL DD RTKKSNK DSLREAVRTL LGYGYNLEAP DQDHAARAEV CSGTGERFRI FRAEKTYAVK AGRWYFEFET VTAGDMRVGW SRP GCQPDQ ELGSDERAFA FDGFKAQRWH QGNEHYGRSW QAGDVVGCMV DMNEHTMMFT LNGEILLDDS GSELAFKDFD VGDG FIPVC SLGVAQVGRM NFGKDVSTLK YFTICGLQEG YEPFAVNTNR DITMWLSKRL PQFLQVPSNH EHIEVTRIDG TIDSS PCLK VTQKSFGSQN SNTDIMFYRL SMPIECAEVF SKTVAGGLPG AGLFGPKNDL EDYDADSDFE VLMKTAHGHL VPDRVD KDK EATKPEFNNH KDYAQEKPSR LKQRFLLRRT KPDYSTSHSA RLTEDVLADD RDDYDFLMQT STYYYSVRIF PGQEPAN VW VGWITSDFHQ YDTGFDLDRV RTVTVTLGDE KGKVHESIKR SNCYMVCAGE SMSPGQGRNN NGLEIGCVVD AASGLLTF I ANGKELSTYY QVEPSTKLFP AVFAQATSPN VFQFELGRIK NVMPLSAGLF KSEHKNPVPQ CPPRLHVQFL SHVLWSRMP NQFLKVDVSR ISERQGWLVQ CLDPLQFMSL HIPEENRSVD ILELTEQEEL LKFHYHTLRL YSAVCALGNH RVAHALCSHV DEPQLLYAI ENKYMPGLLR AGYYDLLIDI HLSSYATARL MMNNEYIVPM TEETKSITLF PDENKKHGLP GIGLSTSLRP R MQFSSPSF VSISNECYQY SPEFPLDILK SKTIQMLTEA VKEGSLHARD PVGGTTEFLF VPLIKLFYTL LIMGIFHNED LK HILQLIE PSVFKEAATP EEESDTLEKE LSVDDAKLQG AGEEEAKGGK RPKEGLLQMK LPEPVKLQMC LLLQYLCDCQ VRH RIEAIV AFSDDFVAKL QDNQRFRYNE VMQALNMSAA LTARKTKEFR SPPQEQINML LNFKDDKSEC PCPEEIRDQL LDFH EDLMT HCGIELDEDG SLDGNSDLTI RGRLLSLVEK VTYLKKKQAE KPVESDSKKS STLQQLISET MVRWAQESVI EDPEL VRAM FVLLHRQYDG IGGLVRALPK TYTINGVSVE DTINLLASLG QIRSLLSVRM GKEEEKLMIR GLGDIMNNKV FYQHPN LMR ALGMHETVME VMVNVLGGGE SKEITFPKMV ANCCRFLCYF CRISRQNQKA MFDHLSYLLE NSSVGLASPA MRGSTPL DV AAASVMDNNE LALALREPDL EKVVRYLAGC GLQSCQMLVS KGYPDIGWNP VEGERYLDFL RFAVFCNGES VEENANVV V RLLIRRPECF GPALRGEGGN GLLAAMEEAI KIAEDPSRDG PSPNSGSSKT LDTEEEEDDT IHMGNAIMTF YSALIDLLG RCAPEMHLIH AGKGEAIRIR SILRSLIPLG DLVGVISIAF QMPTIAKDGN VVEPDMSAGF CPDHKAAMVL FLDRVYGIEV QDFLLHLLE VGFLPDLRAA ASLDTAALSA TDMALALNRY LCTAVLPLLT RCAPLFAGTE HHASLIDSLL HTVYRLSKGC S LTKAQRDS IEVCLLSICG QLRPSMMQHL LRRLVFDVPL LNEHAKMPLK LLTNHYERCW KYYCLPGGWG NFGAASEEEL HL SRKLFWG IFDALSQKKY EQELFKLALP CLSAVAGALP PDYMESNYVS MMEKQSSMDS EGNFNPQPVD TSNITIPEKL EYF INKYAE HSHDKWSMDK LANGWIYGEI YSDSSKVQPL MKPYKLLSEK EKEIYRWPIK ESLKTMLAWG WRIERTREGD SMAL YNRTR RISQTSQVSV DAAHGYSPRA IDMSNVTLSR DLHAMAEMMA ENYHNIWAKK KKMELESKGG GNHPLLVPYD TLTAK EKAK DREKAQDILK FLQINGYAVS RGFKDLELDT PSIEKRFAYS FLQQLIRYVD EAHQYILEFD GGSRGKGEHF PYEQEI KFF AKVVLPLIDQ YFKNHRLYFL SAASRPLCSG GHASNKEKEM VTSLFCKLGV LVRHRISLFG NDATSIVNCL HILGQTL DA RTVMKTGLES VKSALRAFLD NAAEDLEKTM ENLKQGQFTH TRNQPKGVTQ IINYTTVALL PMLSSLFEHI GQHQFGED L ILEDVQVSCY RILTSLYALG TSKSIYVERQ RSALGECLAA FAGAFPVAFL ETHLDKHNIY SIYNTKSSRE RAALSLPTN VEDVCPNIPS LEKLMEEIVE LAESGIRYTQ MPHVMEVILP MLCSYMSRWW EHGPENNPER AEMCCTALNS EHMNTLLGNI LKIIYNNLG IDEGAWMKRL AVFSQPIINK VKPQLLKTHF LPLMEKLKKK AATVVSEEDH LKAEARGDMS EAELLILDEF T TLARDLYA FYPLLIRFVD YNRAKWLKEP NPEAEELFRM VAEVFIYWSK SHNFKREEQN FVVQNEINNM SFLITDTKSK MS KAAVSDQ ERKKMKRKGD RYSMQTSLIV AALKRLLPIG LNICAPGDQE LIALAKNRFS LKDTEDEVRD IIRSNIHLQG KLE DPAIRW QMALYKDLPN RTDDTSDPEK TVERVLDIAN VLFHLEQKSK RVGRRHYCLV EHPQRSKKAV WHKLLSKQRK RAVV ACFRM APLYNLPRHR AVNLFLQGYE KSWIETEEHY FEDKLIEDLA KPGAEPPEED EGTKRVDPLH QLILLFSRTA LTEKC KLEE DFLYMAYADI MAKSCHDEED DDGEEEVKSF EEKEMEKQKL LYQQARLHDR GAAEMVLQTI SASKGETGPM VAATLK LGI AILNGGNSTV QQKMLDYLKE KKDVGFFQSL AGLMQSCSVL DLNAFERQNK AEGLGMVTEE GSGEKVLQDD EFTCDLF RF LQLLCEGHNS DFQNYLRTQT GNNTTVNIII STVDYLLRVQ ESISDFYWYY SGKDVIDEQG QRNFSKAIQV AKQVFNTL T EYIQGPCTGN QQSLAHSRLW DAVVGFLHVF AHMQMKLSQD SSQIELLKEL MDLQKDMVVM LLSMLEGNVV NGTIGKQMV DMLVESSNNV EMILKFFDMF LKLKDLTSSD TFKEYDPDGK GVISKRDFHK AMESHKHYTQ SETEFLLSCA ETDENETLDY EEFVKRFHE PAKDIGFNVA VLLTNLSEHM PNDTRLQTFL ELAESVLNYF QPFLGRIEIM GSAKRIERVY FEISESSRTQ W EKPQVKES KRQFIFDVVN EGGEKEKMEL FVNFCEDTIF EMQLAAQISE SDLNERSANK EESEKERPEE QGPRMAFFSI LT VRSALFA LRYNILTLMR MLSLKSLKKQ MKKVKKMTVK DMVTAFFSSY WSIFMTLLHF VASVFRGFFR IICSLLLGGS LVE GAKKIK VAELLANMPD PTQDEVRGDG EEGERKPLEA ALPSEDLTDL KELTEESDLL SDIFGLDLKR EGGQYKLIPH NPNA GLSDL MSNPVPMPEV QEKFQEQKAK EEEKEEKEET KSEPEKAEGE DGEKEEKAKE DKGKQKLRQL HTHRYGEPEV PESAF WKKI IAYQQKLLNY FARNFYNMRM LALFVAFAIN FILLFYKVST SSVVEGKELP TRSSSENAKV TSLDSSSHRI IAVHYV LEE SSGYMEPTLR ILAILHTVIS FFCIIGYYCL KVPLVIFKRE KEVARKLEFD GLYITEQPSE DDIKGQWDRL VINTQSF PN NYWDKFVKRK VMDKYGEFYG RDRISELLGM DKAALDFSDA REKKKPKKDS SLSAVLNSID VKYQMWKLGV VFTDNSFL Y LAWYMTMSVL GHYNNFFFAA HLLDIAMGFK TLRTILSSVT HNGKQLVLTV GLLAVVVYLY TVVAFNFFRK FYNKSEDGD TPDMKCDDML TCYMFHMYVG VRAGGGIGDE IEDPAGDEYE IYRIIFDITF FFFVIVILLA IIQGLIIDAF GELRDQQEQV KEDMETKCF ICGIGNDYFD TVPHGFETHT LQEHNLANYL FFLMYLINKD ETEHTGQESY VWKMYQERCW EFFPAGDCFR K QYEDQLN

UniProtKB: Ryanodine receptor 2

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Macromolecule #2: Peptidyl-prolyl cis-trans isomerase FKBP1B

MacromoleculeName: Peptidyl-prolyl cis-trans isomerase FKBP1B / type: protein_or_peptide / ID: 2 / Number of copies: 4 / Enantiomer: LEVO / EC number: peptidylprolyl isomerase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.798501 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MGVEIETISP GDGRTFPKKG QTCVVHYTGM LQNGKKFDSS RDRNKPFKFR IGKQEVIKGF EEGAAQMSLG QRAKLTCTPD VAYGATGHP GVIPPNATLI FDVELLNLE

UniProtKB: Peptidyl-prolyl cis-trans isomerase FKBP1B

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Macromolecule #3: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 3 / Number of copies: 4 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Macromolecule #4: ADENOSINE-5'-TRIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 4 / Number of copies: 8 / Formula: ATP
Molecular weightTheoretical: 507.181 Da
Chemical component information

ChemComp-ATP:
ADENOSINE-5'-TRIPHOSPHATE / ATP, energy-carrying molecule*YM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration1.6 mg/mL
BufferpH: 7.4
Component:
ConcentrationFormulaName
230.0 mMNaClNaCl
10.0 mMHEPESHEPES
0.4 %CHAPSCHAPS
1.0 mMEGTAEGTA
0.5 mMTCEPTCEP
0.001 %DOPCDOPC
10.0 mMATPATP
0.65 mMCaCl2CaCl2
0.5 mMXanthineXanthine

Details: Xanthine was made fresh to avoid aggregation. Xanthine stock solution was 10 mM in NaOH 0.5 N.
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 58.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.2 µm / Nominal defocus min: 0.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL / In silico model: CryoSPARC ab initio
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.83 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 90375
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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Atomic model buiding 1

Initial modelPDB ID:

7u9q


Chain - Source name: PDB / Chain - Initial model type: experimental model
Output model

PDB-7ua5:
Structure of dephosphorylated human RyR2 in the closed state

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