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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-9825 | |||||||||
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Title | Structure of RyR2 (F/A/Ca2+ dataset) | |||||||||
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![]() | cryo-EM / MEMBRANE PROTEIN | |||||||||
Function / homology | ![]() positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of calcium-mediated signaling / 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 / response to redox state / protein maturation by protein folding / 'de novo' protein folding ...positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of calcium-mediated signaling / 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 / response to redox state / protein maturation by protein folding / 'de novo' protein folding / negative regulation of heart rate / FK506 binding / positive regulation of axon regeneration / channel regulator activity / smooth muscle contraction / response to vitamin E / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / calcium channel inhibitor activity / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / T cell proliferation / release of sequestered calcium ion into cytosol / Ion homeostasis / regulation of cytosolic calcium ion concentration / sarcoplasmic reticulum membrane / calcium channel complex / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / calcium-mediated signaling / response to hydrogen peroxide / Stimuli-sensing channels / Z disc / positive regulation of cytosolic calcium ion concentration / protein refolding / transmembrane transporter binding / signaling receptor binding / membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.8 Å | |||||||||
![]() | Chi XM / Gong DS | |||||||||
![]() | ![]() Title: Molecular basis for allosteric regulation of the type 2 ryanodine receptor channel gating by key modulators. Authors: Ximin Chi / Deshun Gong / Kang Ren / Gewei Zhou / Gaoxingyu Huang / Jianlin Lei / Qiang Zhou / Nieng Yan / ![]() ![]() Abstract: The type 2 ryanodine receptor (RyR2) is responsible for releasing Ca from the sarcoplasmic reticulum of cardiomyocytes, subsequently leading to muscle contraction. Here, we report 4 cryo-electron ...The type 2 ryanodine receptor (RyR2) is responsible for releasing Ca from the sarcoplasmic reticulum of cardiomyocytes, subsequently leading to muscle contraction. Here, we report 4 cryo-electron microscopy (cryo-EM) structures of porcine RyR2 bound to distinct modulators that, together with our published structures, provide mechanistic insight into RyR2 regulation. Ca alone induces a contraction of the central domain that facilitates the dilation of the S6 bundle but is insufficient to open the pore. The small-molecule agonist PCB95 helps Ca to overcome the barrier for opening. FKBP12.6 induces a relaxation of the central domain that decouples it from the S6 bundle, stabilizing RyR2 in a closed state even in the presence of Ca and PCB95. Although the channel is open when PCB95 is replaced by caffeine and adenosine 5'-triphosphate (ATP), neither of the modulators alone can sufficiently counter the antagonistic effect to open the channel. Our study marks an important step toward mechanistic understanding of the sophisticated regulation of this key channel whose aberrant activity engenders life-threatening cardiac disorders. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 226.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 15.5 KB 15.5 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 14.1 KB | Display | ![]() |
Images | ![]() | 351.5 KB | ||
Filedesc metadata | ![]() | 8.9 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6jh6MC ![]() 9823C ![]() 9824C ![]() 9826C ![]() 6jg3C ![]() 6jgzC ![]() 6jhnC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 1.30654 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : RyR2 in complex with FKBP12.6
Entire | Name: RyR2 in complex with FKBP12.6 |
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Components |
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-Supramolecule #1: RyR2 in complex with FKBP12.6
Supramolecule | Name: RyR2 in complex with FKBP12.6 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Peptidyl-prolyl cis-trans isomerase FKBP1B
Macromolecule | Name: Peptidyl-prolyl cis-trans isomerase FKBP1B / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO / EC number: peptidylprolyl isomerase |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 11.798501 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGVEIETISP GDGRTFPKKG QTCVVHYTGM LQNGKKFDSS RDRNKPFKFR IGKQEVIKGF EEGAAQMSLG QRAKLTCTPD VAYGATGHP GVIPPNATLI FDVELLNLE UniProtKB: Peptidyl-prolyl cis-trans isomerase FKBP1B |
-Macromolecule #2: RyR2
Macromolecule | Name: RyR2 / type: protein_or_peptide / ID: 2 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 564.905625 KDa |
Sequence | String: 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 VSLHVDAAFQ QTLWSVAPIS SGSEAAQGYL IGGDVLRLLH GH MDECLTV PSGEHGEEQR RTVHYEGGAV SVHARSLWRL ETLRVAWSGS HIRWGQPFRL RHVTTGKYLS LMEDKSLLLM DKE KADVKS TAFTFRSSKE KLDVGVRKEV DGMGTSEIKY GDSVCFIQHI GTGLWLTYQS VDVKSVRMGS IQRKAIMHHE GHMD DGLNL 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 VGISDEHAEE K VKKMKLPK NYQLTSGYKP APMDLSFIKL TPSQEAMVDK LAENAHNVWA RDRIRQGWTY GIQQDVKNRR NPRLVPYALL DD RTKKSNK DSLREAVRTL LGYGYNLEAP DQDHAARAEV CSGTGERFRI FRAEKTYAVK AGRWYFEFEA VTAGDMRVGW SRP GCQPDQ ELGSDERAFA FDGFKAQRWH QGNEHYGRSW QAGDVVGCMV DMTEHTMMFT LNGEILLDDS GSELAFKDFD VGDG FIPVC SLGVAQVGRM NFGKDVSTLK YFTICGLQEG YEPFAVNTNR DITMWLSKRL PQFLQVPSSH EHIEVTRIDG TIDSS PCLK VTQKSFGSQN SSTDIMFYRL SMPIECAEVF SKTSAGGIPG ASLFGPKNDL EDYDADSDFE VLMKTAHGHL VPDRVD KDK EATKPEFNNH KDYAQEKPSR LKQRFLLRRT KPDYSTSHSA RLTEDVLADD RDDYDYLMQT STYYYSVRIF PGQEPAN VW VGWITSDFHQ YDTAFDLDRV RTVTVTLGDE KGKVHESIKR SNCYMVCAGE SMSPGQGRNN NGLEIGCVVD AASGLLTF T ANGKDLSTYY QVEPSTKLFP AVFAQATSPN VFQFELGRIK NVMPLSAGLF KSEHKNPVPQ CPPRLHVQFL SHVLWSRMP NQFLKVDVSR ISERQGWLVQ CLEPLQFMSL HIPEENRSVD ILELTEQEEL LKFHYHTLRL YSAVCALGNH RVAHALCSHV DEPQLLYAI ENKYMPGLLR AGYYDLLIDI HLSSYATARL MMNNEFIVPM TEETKSITLF PDENKKHGLP GIGLSTSLRP R MQFSSPSF VSINNECYQY SPEFPLDILK AKTIQMLTEA VQEGSLHARD PVGGTTEFLF VPLIKLFYTL LIMGIFHNED LK HILQLIE PSVFKEAAGP EEESDTLEKE PCASEDSRLE GPAEEESKGG KRPKEGLLQM KLPEPVKLQM CLLLQYLCDC QVR HRIEAI VAFSDDFVAK LQDNQRFRYN EVMQALNMSA ALTARKTKEF RSPPQEQINM LLNFKDDKSE CPCPEEIRDQ LLDF HEDLM THCGIELDED GSLDGNSDLT IRGRLLSLVE KVTYLKKKQA EKLVESDSKK SSTLQQLISE TMVRWAQESV IEDPE LVRA MFVLLHRQYD GIGGLVRALP KTYTINGVSV EDTINLLASL GQIRSLLSVR MGKEEEKLMI RGLGDIMNNK VFYQHP NLM RALGMHETVM EVMVNVLGGG ESKEITFPKM VANCCRFLCY FCRISRQNQK AMFDHLSYLL ENSSVGLASP AMRGSTP LD VAAASVMDNN ELALALREPD LEKVVRYLAG CGLQSCQMLV SKGYPDIGWN PVEGERYLDF LRFAVFCNGE SVEENANV V VRLLIRRPEC FGPALRGEGG NGLLAAMEEA IKIAEDPSRD GPSPTSGSSK MPDTEGEEDD TIHMGNAIMT FYAALIDLL GRCAPEMHLI HAAKGEAIRI RSILRSLIPL GDLVGVISIA FQMPTIAKDG NVVEPDMSAG FCPDHKAAMV LFLDRVYGIE VQDFLLHLL EVGFLPDLRA AASLDTAALS ATDMALALNR YLCTAVLPLL TRCAPLFAGT EHHASLIDSL LHTVYRLSKG C SLTKAQRD SIEVCLLSIC GQLRPSMMQH LLRRLVFDVP LLNEHAKMPL KLLTNHYERC WKYYCLPGGW GNFGAASEEE LH LSRKLFW GIFDALSQKK YEQELFKLAL PCLSAVAGAL PPDYMESNYV SMMEKQSSMD SEGNFNPQPV DTSNITIPEK LEY FINKYA EHSHDKWSMD KLANGWIYGE IYSDSSKVQP LMKPYKLLSE KEKEIYRWPI KESLKTMLAW GWRIERTREG DSMA LYNRT RRISQTSQVS VDAAHGYSPR AIDMSNVTLS RDLHAMAEMM AENYHNIWAK KKKLELESKG GGNHPLLVPY DTLTA KEKA KDREKAQDIL KFLQINGYAV SRGFKDLELD TPSIEKRFAY SFLQQLIRYV DEAHQYILEF DGGSRSKGEH FPYEQE IKF FAKVVLPLID QYFKNHRLYF LSAASRPLCS GGHASNKEKE MVTSLFCKLG VLVRHRISLF GNDATSIVNC LHILGQT LD ARTVMKTGLE SVKSALRAFL DNAAEDLEKT MENLKQGQFT HTRNQPKGVT QIINYTTVAL LPMLSSLFEH IGQHQFGE D LILEDVQVSC YRILTSLYAL GTSKSIYVER QRSALGECLA AFAGAFPVAF LETHLDKHNI YSIYNTKSSR ERAALNLPT NVEDVCPNIP SLEKLMEEIV DLAESGIRYT QMPHVMEVVL PMLCSYMSRW WEHGPENNPG RAEMCCTALN SEHMNTLLGN ILKIIYNNL GIDEGAWMKR LAVFSQPIIN KVKPQLLKTH FLPLMEKLKK KAAMVVSEED HLKSEVRGDM SEAELLILDE F TTLARDLY AFYPLLIRFV DYNRAKWLKE PNPEAEDLFR MVAEVFIYWS KSHNFKREEQ NFVVQNEINN MSFLITDTKS KM SKAAVSD QERKKMKRKG DRYSMQTSLI VAALKRLLPI GLNICAPGDQ ELIALAKNRF SLKDTEDEVR DIIRSNIHLQ GKL EDPAIR WQMALYKDLP NRTEDTSDPE KTVERVLDIA NVLFHLEQKS TCMRRRYYSL VEHPQRSKKA VWHKLLSKQR KRAV VACFR MAPLYNLPRH RAVNLFLQGY EKSWIETEEH YFEDKLIEDL AKPGAVPPEE DEGTKRVDPL HQLILLFSRT ALTEK CKLE EDFLYMAYAD IMAKSCHDEE DDDGEEEVKS FEEKEMEKQK LLYQQARLHD RGAAEMVLQT ISASKGETGP MVAATL KLG IAILNGGNST VQQKMLEYLK EKKDVGFFQS LAGLMQSCSV LDLNAFERQN KAEGLGMVTE EGSGEKVLQD DEFTCDL FR FLQLLCEGHN SDFQNYLRTQ TGNNTTVNII ISTVDYLLRV QESISDFYWY YSGKDVIDEQ GQRNFSKAIQ VAKQVFNT L TEYIQGPCTG NQQSLAHSRL WDAVVGFLHV FAHMQMKLSQ DSSQIELLKE LMDLQKDMVV MLLSMLEGNV VNGTIGKQM VDMLVESSNN VEMILKFFDM FLKLKDLTSS DTFKEYDPDG KGVISKRDFH KAMESHKHYT QSETEFLLSC AETDENETLD YEEFVKRFH EPAKDIGFNV AVLLTNLSEH MPNDTRLQTF LELAESVLNY FQPFLGRIEI MGSAKRIERV YFEISESSRT Q WEKPQVKE SKRQFIFDVV NEGGEKEKME LFVNFCEDTI FEMQLAAQIS ESDLNERSAN KEESEKEKPE EQGPRMGFFS LV TVRSALL ALRYNVLTLM RMLSLKSLKK QMKKVKKMTV RDMVTAFFTS YWSVFMTLLH FAASVSRGFS RIIGGLLLGG SLV EGAKKI KVAELLANMP DPTQDEVRGD GDEGERKVLE GTLPSEDLTD LKELTEESDL LSDIFGLDLK REGGQYKLIP HNPN AGLSD LMSSPAPIPE VQEKFQEQKA KEEEKEEKEE NKSEPEKAEG EDGEKEEKAK EDKGKQKLRQ LHTHRYGEPE VPESA FWKK IIAYQQKLLN YFARNFYNMR MLALFVAFAI NFILLFYKVS TSSVVEGKEL PTRSSSENAN FGSLDSSSPR IIAVHY VLE ESSGYMEPTL RILAILHTVI SFFCIIGYYC LKVPLVIFKR EKEVARKLEF DGLYITEQPS EDDIKGQWDR LVINTQS FP NNYWDKFVKR KVMDKYGEFY GRDRISELLG MDKAALDFSD AREKKKPKKD SSLSAVLNSI DVKYQMWKLG VVFTDNSF L YLAWYMTMSV LGHYNNFFFA AHLLDIAMGF KTLRTILSSV THNGKQLVLT VGLLAVVVYL YTVVAFNFFR KFYNKSEDG DTPDMKCDDM LTCYMFHMYV GVRAGGGIGD EIEDPAGDEY EIYRIIFDIT FFFFVIVILL AIIQGLIIDA FGELRDQQEQ VKEDMETKC FICGIGNDYF DTVPHGFETH TLQEHNLANY LFFLMYLINK DETEHTGQES YVWKMYQERC WEFFPAGDCF R KQYEDQLN |
-Macromolecule #3: ADENOSINE-5'-TRIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 3 / Number of copies: 4 / Formula: ATP |
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Molecular weight | Theoretical: 507.181 Da |
Chemical component information | ![]() ChemComp-ATP: |
-Macromolecule #4: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 4 / Number of copies: 4 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 48.6 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |