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- EMDB-25709: Rabbit RyR1 disease mutant Y523S in complex with FKBP12.6 embedde... -

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Basic information

Entry
Database: EMDB / ID: EMD-25709
TitleRabbit RyR1 disease mutant Y523S in complex with FKBP12.6 embedded in lipidic nanodisc in the closed state
Map data
Sample
  • Complex: Rabbit RyR1 disease mutant Y523S in complex with FKBP12.6 embedded in lipidic nanodisc in the closed state
    • Protein or peptide: Ryanodine receptor 1
    • Protein or peptide: Peptidyl-prolyl cis-trans isomerase FKBP1B
  • Ligand: ZINC ION
KeywordsRyanodine receptor / RyR / RyR1 / calcium channel / mutation / NTDC mutation / malignant hyperthermia / central core disease / membrane protein / excitation-contraction coupling
Function / homology
Function and homology information


ATP-gated ion channel activity / positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of release of sequestered calcium ion into cytosol / terminal cisterna / negative regulation of insulin secretion involved in cellular response to glucose stimulus / ryanodine receptor complex / ryanodine-sensitive calcium-release channel activity / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus ...ATP-gated ion channel activity / positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of release of sequestered calcium ion into cytosol / terminal cisterna / negative regulation of insulin secretion involved in cellular response to glucose stimulus / ryanodine receptor complex / ryanodine-sensitive calcium-release channel activity / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / ossification involved in bone maturation / cell communication by electrical coupling involved in cardiac conduction / response to redox state / protein maturation by protein folding / skin development / 'de novo' protein folding / negative regulation of heart rate / negative regulation of phosphoprotein phosphatase activity / FK506 binding / positive regulation of axon regeneration / cellular response to caffeine / intracellularly gated calcium channel activity / outflow tract morphogenesis / organelle membrane / : / toxic substance binding / smooth muscle contraction / negative regulation of ryanodine-sensitive calcium-release channel activity / voltage-gated calcium channel activity / response to vitamin E / calcium channel inhibitor activity / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / skeletal muscle fiber development / protein peptidyl-prolyl isomerization / T cell proliferation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / release of sequestered calcium ion into cytosol / regulation of ryanodine-sensitive calcium-release channel activity / Ion homeostasis / sarcoplasmic reticulum membrane / calcium channel complex / regulation of cytosolic calcium ion concentration / cellular response to calcium ion / sarcoplasmic reticulum / muscle contraction / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / calcium ion transmembrane transport / calcium channel activity / response to hydrogen peroxide / intracellular calcium ion homeostasis / Stimuli-sensing channels / Z disc / disordered domain specific binding / positive regulation of cytosolic calcium ion concentration / protein refolding / protein homotetramerization / transmembrane transporter binding / calmodulin binding / signaling receptor binding / calcium ion binding / ATP binding / membrane / identical protein binding / cytosol / cytoplasm
Similarity search - Function
: / Ryanodine receptor junctional solenoid repeat / Ryanodine receptor, SPRY domain 2 / 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 junctional solenoid repeat / Ryanodine receptor, SPRY domain 2 / 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. / SPRY domain / B30.2/SPRY domain superfamily / Domain in SPla and the RYanodine Receptor. / 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 / Ion transport domain / Ion transport protein / EF-hand domain pair / Concanavalin A-like lectin/glucanase domain superfamily
Similarity search - Domain/homology
Ryanodine receptor 1 / Peptidyl-prolyl cis-trans isomerase FKBP1B
Similarity search - Component
Biological speciesOryctolagus cuniculus (rabbit) / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.0 Å
AuthorsIyer KA / Hu Y / Murayama T / Samso M
Funding support United States, 4 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIH/NIAMS)R01 AR068431 United States
American Heart Association19POST34430178 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)U24 GM116789 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)U24 GM116790 United States
CitationJournal: Proc Natl Acad Sci U S A / Year: 2022
Title: Molecular mechanism of the severe MH/CCD mutation Y522S in skeletal ryanodine receptor (RyR1) by cryo-EM.
Authors: Kavita A Iyer / Yifan Hu / Thomas Klose / Takashi Murayama / Montserrat Samsó /
Abstract: Ryanodine receptors (RyRs) are main regulators of intracellular Ca release and muscle contraction. The Y522S mutation of RyR1 causes central core disease, a weakening myopathy, and malignant ...Ryanodine receptors (RyRs) are main regulators of intracellular Ca release and muscle contraction. The Y522S mutation of RyR1 causes central core disease, a weakening myopathy, and malignant hyperthermia, a sudden and potentially fatal response to anesthetics or heat. Y522 is in the core of the N-terminal subdomain C of RyR1 and the mechanism of how this mutation orchestrates malfunction is unpredictable for this 2-MDa ion channel, which has four identical subunits composed of 15 distinct cytoplasmic domains each. We expressed and purified the RyR1 rabbit homolog, Y523S, from HEK293 cells and reconstituted it in nanodiscs under closed and open states. The high-resolution cryogenic electron microscopic (cryo-EM) three-dimensional (3D) structures show that the phenyl ring of Tyr functions in a manner analogous to a "spacer" within an α-helical bundle. Mutation to the much smaller Ser alters the hydrophobic network within the bundle, triggering rearrangement of its α-helices with repercussions in the orientation of most cytoplasmic domains. Examining the mutation-induced readjustments exposed a series of connected α-helices acting as an ∼100 Å-long lever: One end protrudes toward the dihydropyridine receptor, its molecular activator (akin to an antenna), while the other end reaches the Ca activation site. The Y523S mutation elicits channel preactivation in the absence of any activator and full opening at 1.5 µM free Ca, increasing by ∼20-fold the potency of Ca to activate the channel compared with RyR1 wild type (WT). This study identified a preactivated pathological state of RyR1 and a long-range lever that may work as a molecular switch to open the channel.
History
DepositionDec 13, 2021-
Header (metadata) releaseJul 20, 2022-
Map releaseJul 20, 2022-
UpdateFeb 28, 2024-
Current statusFeb 28, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_25709.png

Downloads & links

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Map

FileDownload / File: emd_25709.map.gz / Format: CCP4 / Size: 303.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.08 Å
Density
Contour LevelBy AUTHOR: 0.155
Minimum - Maximum-0.73247564 - 1.2469189
Average (Standard dev.)0.0062064147 (±0.038149785)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions430430430
Spacing430430430
CellA=B=C: 464.40002 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: Focused map of single subunit generated using local...

Fileemd_25709_additional_1.map
AnnotationFocused map of single subunit generated using local refinement in cryoSPARC0
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: Focused map of NTDs (A, B and C)...

Fileemd_25709_additional_2.map
AnnotationFocused map of NTDs (A, B and C) and SPRYs (1 to 3) of a single subunit generated using particle subtraction and local refinement in cryoSPARC
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_25709_half_map_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram

Histogram (log scale)

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Half map: #1

Fileemd_25709_half_map_2.map
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram

Histogram (log scale)

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Sample components

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Entire : Rabbit RyR1 disease mutant Y523S in complex with FKBP12.6 embedde...

EntireName: Rabbit RyR1 disease mutant Y523S in complex with FKBP12.6 embedded in lipidic nanodisc in the closed state
Components
  • Complex: Rabbit RyR1 disease mutant Y523S in complex with FKBP12.6 embedded in lipidic nanodisc in the closed state
    • Protein or peptide: Ryanodine receptor 1
    • Protein or peptide: Peptidyl-prolyl cis-trans isomerase FKBP1B
  • Ligand: ZINC ION

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Supramolecule #1: Rabbit RyR1 disease mutant Y523S in complex with FKBP12.6 embedde...

SupramoleculeName: Rabbit RyR1 disease mutant Y523S in complex with FKBP12.6 embedded in lipidic nanodisc in the closed state
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Molecular weightTheoretical: 2.26 MDa

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Macromolecule #1: Ryanodine receptor 1

MacromoleculeName: Ryanodine receptor 1 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: Oryctolagus cuniculus (rabbit)
Molecular weightTheoretical: 565.832562 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MGDGGEGEDE VQFLRTDDEV VLQCSATVLK EQLKLCLAAE GFGNRLCFLE PTSNAQNVPP DLAICCFTLE QSLSVRALQE MLANTVEAG VESSQGGGHR TLLYGHAILL RHAHSRMYLS CLTTSRSMTD KLAFDVGLQE DATGEACWWT MHPASKQRSE G EKVRVGDD ...String:
MGDGGEGEDE VQFLRTDDEV VLQCSATVLK EQLKLCLAAE GFGNRLCFLE PTSNAQNVPP DLAICCFTLE QSLSVRALQE MLANTVEAG VESSQGGGHR TLLYGHAILL RHAHSRMYLS CLTTSRSMTD KLAFDVGLQE DATGEACWWT MHPASKQRSE G EKVRVGDD LILVSVSSER YLHLSTASGE LQVDASFMQT LWNMNPICSC CEEGYVTGGH VLRLFHGHMD ECLTISAADS DD QRRLVYY EGGAVCTHAR SLWRLEPLRI SWSGSHLRWG QPLRIRHVTT GRYLALTEDQ GLVVVDACKA HTKATSFCFR VSK EKLDTA PKRDVEGMGP PEIKYGESLC FVQHVASGLW LTYAAPDPKA LRLGVLKKKA ILHQEGHMDD ALFLTRCQQE ESQA ARMIH STAGLYNQFI KGLDSFSGKP RGSGPPAGPA LPIEAVILSL QDLIGYFEPP SEELQHEEKQ SKLRSLRNRQ SLFQE EGML SLVLNCIDRL NVYTTAAHFA EYAGEEAAES WKEIVNLLSE LLASLIRGNR ANCALFSTNL DWVVSKLDRL EASSGI LEV LYCVLIESPE VLNIIQENHI KSIISLLDKH GRNHKVLDVL CSLCVCNGVA VRSNQDLITE NLLPGRELLL QTNLINY VT SIRPNIFVGR AEGSTQYGKW YFEVMVDEVV PFLTAQATHL RVGWALTEGY SPYPGGGEGW GGNGVGDDLY SYGFDGLH L WTGHVARPVT SPGQHLLAPE DVVSCCLDLS VPSISFRING CPVQGVFEAF NLDGLFFPVV SFSAGVKVRF LLGGRHGEF KFLPPPGYAP CHEAVLPRER LRLEPIKEYR REGPRGPHLV GPSRCLSHTD FVPCPVDTVQ IVLPPHLERI REKLAENIHE LWALTRIEQ GWTYGPVRDD NKRLHPCLVN FHSLPEPERN YNLQMSGETL KTLLALGCHV GMADEKAEDN LKKTKLPKTY M MSNGYKPA PLDLSHVRLT PAQTTLVDRL AENGHNVWAR DRVAQGWSYS AVQDIPARRN PRLVPYRLLD EATKRSNRDS LC QAVRTLL GYGYNIEPPD QEPSQVENQS RWDRVRIFRA EKSYTVQSGR WYFEFEAVTT GEMRVGWARP ELRPDVELGA DEL AYVFNG HRGQRWHLGS EPFGRPWQSG DVVGCMIDLT ENTIIFTLNG EVLMSDSGSE TAFREIEIGD GFLPVCSLGP GQVG HLNLG QDVSSLRFFA ICGLQEGFEP FAINMQRPVT TWFSKSLPQF EPVPPEHPHY EVARMDGTVD TPPCLRLAHR TWGSQ NSLV EMLFLRLSLP VQFHQHFRCT AGATPLAPPG LQPPAEDEAR AAEPDPDYEN LRRSAGGWGE AEGGKEGTAK EGTPGG TPQ PGVEAQPVRA ENEKDATTEK NKKRGFLFKA KKAAMMTQPP ATPALPRLPH DVVPADNRDD PEIILNTTTY YYSVRVF AG QEPSCVWVGW VTPDYHQHDM NFDLSKVRAV TVTMGDEQGN VHSSLKCSNC YMVWGGDFVS PGQQGRISHT DLVIGCLV D LATGLMTFTA NGKESNTFFQ VEPNTKLFPA VFVLPTHQNV IQFELGKQKN IMPLSAAMFL SERKNPAPQC PPRLEVQML MPVSWSRMPN HFLQVETRRA GERLGWAVQC QDPLTMMALH IPEENRCMDI LELSERLDLQ RFHSHTLRLY RAVCALGNNR VAHALCSHV DQAQLLHALE DAHLPGPLRA GYYDLLISIH LESACRSRRS MLSEYIVPLT PETRAITLFP PGRKGGNARR H GLPGVGVT TSLRPPHHFS PPCFVAALPA AGVAEAPARL SPAIPLEALR DKALRMLGEA VRDGGQHARD PVGGSVEFQF VP VLKLVST LLVMGIFGDE DVKQILKMIE PEVFTEEEEE EEEEEEEEEE EEEDEEEKEE DEEEEEKEDA EKEEEEAPEG EKE DLEEGL LQMKLPESVK LQMCNLLEYF CDQELQHRVE SLAAFAERYV DKLQANQRSR YALLMRAFTM SAAETARRTR EFRS PPQEQ INMLLHFKDE ADEEDCPLPE DIRQDLQDFH QDLLAHCGIQ LEGEEEEPEE ETSLSSRLRS LLETVRLVKK KEEKP EEEL PAEEKKPQSL QELVSHMVVR WAQEDYVQSP ELVRAMFSLL HRQYDGLGEL LRALPRAYTI SPSSVEDTMS LLECLG QIR SLLIVQMGPQ EENLMIQSIG NIMNNKVFYQ HPNLMRALGM HETVMEVMVN VLGGGETKEI RFPKMVTSCC RFLCYFC RI SRQNQRSMFD HLSYLLENSG IGLGMQGSTP LDVAAASVID NNELALALQE QDLEKVVSYL AGCGLQSCPM LLAKGYPD I GWNPCGGERY LDFLRFAVFV NGESVEENAN VVVRLLIRKP ECFGPALRGE GGSGLLAAIE EAIRISEDPA RDGPGVRRD RRREHFGEEP PEENRVHLGH AIMSFYAALI DLLGRCAPEM HLIQAGKGEA LRIRAILRSL VPLDDLVGII SLPLQIPTLG KDGALVQPK MSASFVPDHK ASMVLFLDRV YGIENQDFLL HVLDVGFLPD MRAAASLDTA TFSTTEMALA LNRYLCLAVL P LITKCAPL FAGTEHRAIM VDSMLHTVYR LSRGRSLTKA QRDVIEDCLM ALCRYIRPSM LQHLLRRLVF DVPILNEFAK MP LKLLTNH YERCWKYYCL PTGWANFGVT SEEELHLTRK LFWGIFDSLA HKKYDQELYR MAMPCLCAIA GALPPDYVDA SYS SKAEKK ATVDAEGNFD PRPVETLNVI IPEKLDSFIN KFAEYTHEKW AFDKIQNNWS YGENVDEELK THPMLRPYKT FSEK DKEIY RWPIKESLKA MIAWEWTIEK AREGEEERTE KKKTRKISQT AQTYDPREGY NPQPPDLSGV TLSRELQAMA EQLAE NYHN TWGRKKKQEL EAKGGGTHPL LVPYDTLTAK EKARDREKAQ ELLKFLQMNG YAVTRGLKDM ELDTSSIEKR FAFGFL QQL LRWMDISQEF IAHLEAVVSS GRVEKSPHEQ EIKFFAKILL PLINQYFTNH CLYFLSTPAK VLGSGGHASN KEKEMIT SL FCKLAALVRH RVSLFGTDAP AVVNCLHILA RSLDARTVMK SGPEIVKAGL RSFFESASED IEKMVENLRL GKVSQART Q VKGVGQNLTY TTVALLPVLT TLFQHIAQHQ FGDDVILDDV QVSCYRTLCS IYSLGTTKNT YVEKLRPALG ECLARLAAA MPVAFLEPQL NEYNACSVYT TKSPRERAIL GLPNSVEEMC PDIPVLDRLM ADIGGLAESG ARYTEMPHVI EITLPMLCSY LPRWWERGP EAPPPALPAG APPPCTAVTS DHLNSLLGNI LRIIVNNLGI DEATWMKRLA VFAQPIVSRA RPELLHSHFI P TIGRLRKR AGKVVAEEEQ LRLEAKAEAE EGELLVRDEF SVLCRDLYAL YPLLIRYVDN NRAHWLTEPN ANAEELFRMV GE IFIYWSK SHNFKREEQN FVVQNEINNM SFLTADSKSK MAKAGDAQSG GSDQERTKKK RRGDRYSVQT SLIVATLKKM LPI GLNMCA PTDQDLIMLA KTRYALKDTD EEVREFLQNN LHLQGKVEGS PSLRWQMALY RGLPGREEDA DDPEKIVRRV QEVS AVLYH LEQTEHPYKS KKAVWHKLLS KQRRRAVVAC FRMTPLYNLP THRACNMFLE SYKAAWILTE DHSFEDRMID DLSKA GEQE EEEEEVEEKK PDPLHQLVLH FSRTALTEKS KLDEDYLYMA YADIMAKSCH LEEGGENGEA EEEEVEVSFE EKEMEK QRL LYQQSRLHTR GAAEMVLQMI SACKGETGAM VSSTLKLGIS ILNGGNAEVQ QKMLDYLKDK KEVGFFQSIQ ALMQTCS VL DLNAFERQNK AEGLGMVNED GTVINRQNGE KVMADDEFTQ DLFRFLQLLC EGHNNDFQNY LRTQTGNTTT INIIICTV D YLLRLQESIS DFYWYYSGKD VIEEQGKRNF SKAMSVAKQV FNSLTEYIQG PCTGNQQSLA HSRLWDAVVG FLHVFAHMM MKLAQDSSQI ELLKELLDLQ KDMVVMLLSL LEGNVVNGMI ARQMVDMLVE SSSNVEMILK FFDMFLKLKD IVGSEAFQDY VTDPRGLIS KKDFQKAMDS QKQFTGPEIQ FLLSCSEADE NEMINFEEFA NRFQEPARDI GFNVAVLLTN LSEHVPHDPR L RNFLELAE SILEYFRPYL GRIEIMGASR RIERIYFEIS ETNRAQWEMP QVKESKRQFI FDVVNEGGEA EKMELFVSFC ED TIFEMQI AAQISEPEGE PEADEDEGMG EAAAEGAEEG AAGAEGAAGT VAAGATARLA AAAARALRGL SYRSLRRRVR RLR RLTARE AATALAALLW AVVARAGAAG AGAAAGALRL LWGSLFGGGL VEGAKKVTVT ELLAGMPDPT SDEVHGEQPA GPGG DADGA GEGEGEGDAA EGDGDEEVAG HEAGPGGAEG VVAVADGGPF RPEGAGGLGD MGDTTPAEPP TPEGSPILKR KLGVD GEEE ELVPEPEPEP EPEPEKADEE NGEKEEVPEA PPEPPKKAPP SPPAKKEEAG GAGMEFWGEL EVQRVKFLNY LSRNFY TLR FLALFLAFAI NFILLFYKVS DSPPGEDDME GSAAGDLAGA GSGGGSGWGS GAGEEAEGDE DENMVYYFLE ESTGYME PA LWCLSLLHTL VAFLCIIGYN CLKVPLVIFK REKELARKLE FDGLYITEQP GDDDVKGQWD RLVLNTPSFP SNYWDKFV K RKVLDKHGDI FGRERIAELL GMDLASLEIT AHNERKPDPP PGLLTWLMSI DVKYQIWKFG VIFTDNSFLY LGWYMVMSL LGHYNNFFFA AHLLDIAMGV KTLRTILSSV THNGKQLVMT VGLLAVVVYL YTVVAFNFFR KFYNKSEDED EPDMKCDDMM TCYLFHMYV GVRAGGGIGD EIEDPAGDEY ELYRVVFDIT FFFFVIVILL AIIQGLIIDA FGELRDQQEQ VKEDMETKCF I CGIGSDYF DTTPHGFETH TLEEHNLANY MFFLMYLINK DETEHTGQES YVWKMYQERC WDFFPAGDCF RKQYEDQLS

UniProtKB: Ryanodine receptor 1

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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: 11.667305 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
GVEIETISPG DGRTFPKKGQ TCVVHYTGML QNGKKFDSSR DRNKPFKFRI GKQEVIKGFE EGAAQMSLGQ RAKLTCTPDV AYGATGHPG VIPPNATLIF DVELLNLE

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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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration4.5 mg/mL
BufferpH: 7.4
Component:
ConcentrationFormulaName
20.0 mMMOPSMOPS
600.0 mMKClPotassium chloride
2.0 mMDTTDithiothreitol
2.0 mMEGTAEGTA
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV / Details: Blot force 2; blot for 1.0s before plunging.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.7000000000000001 µm / Nominal magnification: 81000
Specialist opticsEnergy filter - Slit width: 20 eV
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 2 / Number real images: 13171 / Average exposure time: 3.12 sec. / Average electron dose: 53.69 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 154814
Startup modelType of model: NONE
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 2.15)
Final 3D classificationSoftware - Name: cryoSPARC (ver. 2.15)
Final angle assignmentType: PROJECTION MATCHING / Software - Name: cryoSPARC (ver. 2.15)
Final reconstructionNumber classes used: 2 / Applied symmetry - Point group: C4 (4 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 4.0 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 2.15) / Number images used: 141098
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

6wot


Chain - Source name: PDB / Chain - Initial model type: experimental model
RefinementSpace: REAL / Protocol: RIGID BODY FIT
Output model

PDB-7t64:
Rabbit RyR1 disease mutant Y523S in complex with FKBP12.6 embedded in lipidic nanodisc in the closed state

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