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- EMDB-32922: Cryo-EM structure of human TRiC-NPP state -

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Basic information

Entry
Database: EMDB / ID: EMD-32922
TitleCryo-EM structure of human TRiC-NPP state
Map data
Sample
  • Complex: hTRiC-NPP
    • Protein or peptide: T-complex protein 1 subunit alpha
    • Protein or peptide: T-complex protein 1 subunit beta
    • Protein or peptide: T-complex protein 1 subunit delta
    • Protein or peptide: T-complex protein 1 subunit epsilon
    • Protein or peptide: T-complex protein 1 subunit gamma
    • Protein or peptide: T-complex protein 1 subunit eta
    • Protein or peptide: T-complex protein 1 subunit theta
    • Protein or peptide: T-complex protein 1 subunit zeta
Keywordstubulin / STRUCTURAL PROTEIN
Function / homology
Function and homology information


zona pellucida receptor complex / scaRNA localization to Cajal body / positive regulation of protein localization to Cajal body / tubulin complex assembly / chaperone mediated protein folding independent of cofactor / positive regulation of establishment of protein localization to telomere / BBSome-mediated cargo-targeting to cilium / chaperonin-containing T-complex / Folding of actin by CCT/TriC / Formation of tubulin folding intermediates by CCT/TriC ...zona pellucida receptor complex / scaRNA localization to Cajal body / positive regulation of protein localization to Cajal body / tubulin complex assembly / chaperone mediated protein folding independent of cofactor / positive regulation of establishment of protein localization to telomere / BBSome-mediated cargo-targeting to cilium / chaperonin-containing T-complex / Folding of actin by CCT/TriC / Formation of tubulin folding intermediates by CCT/TriC / positive regulation of telomerase RNA localization to Cajal body / binding of sperm to zona pellucida / Prefoldin mediated transfer of substrate to CCT/TriC / RHOBTB1 GTPase cycle / WD40-repeat domain binding / intermediate filament cytoskeleton / beta-tubulin binding / pericentriolar material / Association of TriC/CCT with target proteins during biosynthesis / chaperone-mediated protein complex assembly / RHOBTB2 GTPase cycle / heterochromatin / chaperone-mediated protein folding / protein folding chaperone / positive regulation of telomerase activity / positive regulation of telomere maintenance via telomerase / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / acrosomal vesicle / cell projection / mRNA 3'-UTR binding / ATP-dependent protein folding chaperone / response to virus / mRNA 5'-UTR binding / cilium / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / G-protein beta-subunit binding / azurophil granule lumen / unfolded protein binding / melanosome / protein folding / cell body / secretory granule lumen / ficolin-1-rich granule lumen / microtubule / protein stabilization / cytoskeleton / cadherin binding / centrosome / ubiquitin protein ligase binding / Neutrophil degranulation / Golgi apparatus / ATP hydrolysis activity / RNA binding / extracellular exosome / extracellular region / nucleoplasm / ATP binding / cytosol / cytoplasm
Similarity search - Function
T-complex protein 1, alpha subunit / T-complex protein 1, eta subunit / T-complex protein 1, theta subunit / T-complex protein 1, zeta subunit / T-complex protein 1, delta subunit / T-complex protein 1, gamma subunit / T-complex protein 1, epsilon subunit / T-complex protein 1, beta subunit / Chaperonins TCP-1 signature 1. / Chaperonins TCP-1 signature 2. ...T-complex protein 1, alpha subunit / T-complex protein 1, eta subunit / T-complex protein 1, theta subunit / T-complex protein 1, zeta subunit / T-complex protein 1, delta subunit / T-complex protein 1, gamma subunit / T-complex protein 1, epsilon subunit / T-complex protein 1, beta subunit / Chaperonins TCP-1 signature 1. / Chaperonins TCP-1 signature 2. / Chaperonin TCP-1, conserved site / Chaperonins TCP-1 signature 3. / Chaperone tailless complex polypeptide 1 (TCP-1) / GroEL-like equatorial domain superfamily / TCP-1-like chaperonin intermediate domain superfamily / GroEL-like apical domain superfamily / TCP-1/cpn60 chaperonin family / Chaperonin Cpn60/GroEL/TCP-1 family
Similarity search - Domain/homology
T-complex protein 1 subunit alpha / T-complex protein 1 subunit zeta / T-complex protein 1 subunit epsilon / T-complex protein 1 subunit gamma / T-complex protein 1 subunit theta / T-complex protein 1 subunit delta / T-complex protein 1 subunit beta / T-complex protein 1 subunit eta
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsCong Y / Liu CX
Funding support China, 1 items
OrganizationGrant numberCountry
Chinese Academy of SciencesXDB29040300 China
CitationJournal: Commun Biol / Year: 2023
Title: Pathway and mechanism of tubulin folding mediated by TRiC/CCT along its ATPase cycle revealed using cryo-EM.
Authors: Caixuan Liu / Mingliang Jin / Shutian Wang / Wenyu Han / Qiaoyu Zhao / Yifan Wang / Cong Xu / Lei Diao / Yue Yin / Chao Peng / Lan Bao / Yanxing Wang / Yao Cong /
Abstract: The eukaryotic chaperonin TRiC/CCT assists the folding of about 10% of cytosolic proteins through an ATP-driven conformational cycle, and the essential cytoskeleton protein tubulin is the obligate ...The eukaryotic chaperonin TRiC/CCT assists the folding of about 10% of cytosolic proteins through an ATP-driven conformational cycle, and the essential cytoskeleton protein tubulin is the obligate substrate of TRiC. Here, we present an ensemble of cryo-EM structures of endogenous human TRiC throughout its ATPase cycle, with three of them revealing endogenously engaged tubulin in different folding stages. The open-state TRiC-tubulin-S1 and -S2 maps show extra density corresponding to tubulin in the cis-ring chamber of TRiC. Our structural and XL-MS analyses suggest a gradual upward translocation and stabilization of tubulin within the TRiC chamber accompanying TRiC ring closure. In the closed TRiC-tubulin-S3 map, we capture a near-natively folded tubulin-with the tubulin engaging through its N and C domains mainly with the A and I domains of the CCT3/6/8 subunits through electrostatic and hydrophilic interactions. Moreover, we also show the potential role of TRiC C-terminal tails in substrate stabilization and folding. Our study delineates the pathway and molecular mechanism of TRiC-mediated folding of tubulin along the ATPase cycle of TRiC, and may also inform the design of therapeutic agents targeting TRiC-tubulin interactions.
History
DepositionFeb 21, 2022-
Header (metadata) releaseApr 12, 2023-
Map releaseApr 12, 2023-
UpdateJul 5, 2023-
Current statusJul 5, 2023Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_32922.png

Downloads & links

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Map

FileDownload / File: emd_32922.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.318 Å
Density
Contour LevelBy AUTHOR: 0.663
Minimum - Maximum-1.5443273 - 2.8916123
Average (Standard dev.)0.014496291 (±0.124085404)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 337.408 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : hTRiC-NPP

EntireName: hTRiC-NPP
Components
  • Complex: hTRiC-NPP
    • Protein or peptide: T-complex protein 1 subunit alpha
    • Protein or peptide: T-complex protein 1 subunit beta
    • Protein or peptide: T-complex protein 1 subunit delta
    • Protein or peptide: T-complex protein 1 subunit epsilon
    • Protein or peptide: T-complex protein 1 subunit gamma
    • Protein or peptide: T-complex protein 1 subunit eta
    • Protein or peptide: T-complex protein 1 subunit theta
    • Protein or peptide: T-complex protein 1 subunit zeta

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Supramolecule #1: hTRiC-NPP

SupramoleculeName: hTRiC-NPP / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: T-complex protein 1 subunit alpha

MacromoleculeName: T-complex protein 1 subunit alpha / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 60.418477 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MEGPLSVFGD RSTGETIRSQ NVMAAASIAN IVKSSLGPVG LDKMLVDDIG DVTITNDGAT ILKLLEVEHP AAKVLCELAD LQDKEVGDG TTSVVIIAAE LLKNADELVK QKIHPTSVIS GYRLACKEAV RYINENLIVN TDELGRDCLI NAAKTSMSSK I IGINGDFF ...String:
MEGPLSVFGD RSTGETIRSQ NVMAAASIAN IVKSSLGPVG LDKMLVDDIG DVTITNDGAT ILKLLEVEHP AAKVLCELAD LQDKEVGDG TTSVVIIAAE LLKNADELVK QKIHPTSVIS GYRLACKEAV RYINENLIVN TDELGRDCLI NAAKTSMSSK I IGINGDFF ANMVVDAVLA IKYTDIRGQP RYPVNSVNIL KAHGRSQMES MLISGYALNC VVGSQGMPKR IVNAKIACLD FS LQKTKMK LGVQVVITDP EKLDQIRQRE SDITKERIQK ILATGANVIL TTGGIDDMCL KYFVEAGAMA VRRVLKRDLK RIA KASGAT ILSTLANLEG EETFEAAMLG QAEEVVQERI CDDELILIKN TKARTSASII LRGANDFMCD EMERSLHDAL CVVK RVLES KSVVPGGGAV EAALSIYLEN YATSMGSREQ LAIAEFARSL LVIPNTLAVN AAQDSTDLVA KLRAFHNEAQ VNPER KNLK WIGLDLSNGK PRDNKQAGVF EPTIVKVKSL KFATEAAITI LRIDDLIKLH PESKDDKHGS YEDAVHSGAL ND

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Macromolecule #2: T-complex protein 1 subunit beta

MacromoleculeName: T-complex protein 1 subunit beta / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 57.567141 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MASLSLAPVN IFKAGADEER AETARLTSFI GAIAIGDLVK STLGPKGMDK ILLSSGRDAS LMVTNDGATI LKNIGVDNPA AKVLVDMSR VQDDEVGDGT TSVTVLAAEL LREAESLIAK KIHPQTIIAG WREATKAARE ALLSSAVDHG SDEVKFRQDL M NIAGTTLS ...String:
MASLSLAPVN IFKAGADEER AETARLTSFI GAIAIGDLVK STLGPKGMDK ILLSSGRDAS LMVTNDGATI LKNIGVDNPA AKVLVDMSR VQDDEVGDGT TSVTVLAAEL LREAESLIAK KIHPQTIIAG WREATKAARE ALLSSAVDHG SDEVKFRQDL M NIAGTTLS SKLLTHHKDH FTKLAVEAVL RLKGSGNLEA IHIIKKLGGS LADSYLDEGF LLDKKIGVNQ PKRIENAKIL IA NTGMDTD KIKIFGSRVR VDSTAKVAEI EHAEKEKMKE KVERILKHGI NCFINRQLIY NYPEQLFGAA GVMAIEHADF AGV ERLALV TGGEIASTFD HPELVKLGSC KLIEEVMIGE DKLIHFSGVA LGEACTIVLR GATQQILDEA ERSLHDALCV LAQT VKDSR TVYGGGCSEM LMAHAVTQLA NRTPGKEAVA MESYAKALRM LPTIIADNAG YDSADLVAQL RAAHSEGNTT AGLDM REGT IGDMAILGIT ESFQVKRQVL LSAAEAAEVI LRVDNIIKAA PRKRVPDHHP C

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Macromolecule #3: T-complex protein 1 subunit delta

MacromoleculeName: T-complex protein 1 subunit delta / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 57.996113 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MPENVAPRSG ATAGAAGGRG KGAYQDRDKP AQIRFSNISA AKAVADAIRT SLGPKGMDKM IQDGKGDVTI TNDGATILKQ MQVLHPAAR MLVELSKAQD IEAGDGTTSV VIIAGSLLDS CTKLLQKGIH PTIISESFQK ALEKGIEILT DMSRPVELSD R ETLLNSAT ...String:
MPENVAPRSG ATAGAAGGRG KGAYQDRDKP AQIRFSNISA AKAVADAIRT SLGPKGMDKM IQDGKGDVTI TNDGATILKQ MQVLHPAAR MLVELSKAQD IEAGDGTTSV VIIAGSLLDS CTKLLQKGIH PTIISESFQK ALEKGIEILT DMSRPVELSD R ETLLNSAT TSLNSKVVSQ YSSLLSPMSV NAVMKVIDPA TATSVDLRDI KIVKKLGGTI DDCELVEGLV LTQKVSNSGI TR VEKAKIG LIQFCLSAPK TDMDNQIVVS DYAQMDRVLR EERAYILNLV KQIKKTGCNV LLIQKSILRD ALSDLALHFL NKM KIMVIK DIEREDIEFI CKTIGTKPVA HIDQFTADML GSAELAEEVN LNGSGKLLKI TGCASPGKTV TIVVRGSNKL VIEE AERSI HDALCVIRCL VKKRALIAGG GAPEIELALR LTEYSRTLSG MESYCVRAFA DAMEVIPSTL AENAGLNPIS TVTEL RNRH AQGEKTAGIN VRKGGISNIL EELVVQPLLV SVSALTLATE TVRSILKIDD VVNTR

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Macromolecule #4: T-complex protein 1 subunit epsilon

MacromoleculeName: T-complex protein 1 subunit epsilon / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 59.547684 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: SMGTLAFDEY GRPFLIIKDQ DRKSRLMGLE ALKSHIMAAK AVANTMRTSL GPNGLDKMMV DKDGDVTVTN DGATILSMMD VDHQIAKLM VELSKSQDDE IGDGTTGVVV LAGALLEEAE QLLDRGIHPI RIADGYEQAA RVAIEHLDKI SDSVLVDIKD T EPLIQTAK ...String:
SMGTLAFDEY GRPFLIIKDQ DRKSRLMGLE ALKSHIMAAK AVANTMRTSL GPNGLDKMMV DKDGDVTVTN DGATILSMMD VDHQIAKLM VELSKSQDDE IGDGTTGVVV LAGALLEEAE QLLDRGIHPI RIADGYEQAA RVAIEHLDKI SDSVLVDIKD T EPLIQTAK TTLGSKVVNS CHRQMAEIAV NAVLTVADME RRDVDFELIK VEGKVGGRLE DTKLIKGVIV DKDFSHPQMP KK VEDAKIA ILTCPFEPPK PKTKHKLDVT SVEDYKALQK YEKEKFEEMI QQIKETGANL AICQWGFDDE ANHLLLQNNL PAV RWVGGP EIELIAIATG GRIVPRFSEL TAEKLGFAGL VQEISFGTTK DKMLVIEQCK NSRAVTIFIR GGNKMIIEEA KRSL HDALC VIRNLIRDNR VVYGGGAAEI SCALAVSQEA DKCPTLEQYA MRAFADALEV IPMALSENSG MNPIQTMTEV RARQV KEMN PALGIDCLHK GTNDMKQQHV IETLIGKKQQ ISLATQMVRM ILKIDDIRKP GESEE

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Macromolecule #5: T-complex protein 1 subunit gamma

MacromoleculeName: T-complex protein 1 subunit gamma / type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 60.613855 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MMGHRPVLVL SQNTKRESGR KVQSGNINAA KTIADIIRTC LGPKSMMKML LDPMGGIVMT NDGNAILREI QVQHPAAKSM IEISRTQDE EVGDGTTSVI ILAGEMLSVA EHFLEQQMHP TVVISAYRKA LDDMISTLKK ISIPVDISDS DMMLNIINSS I TTKAISRW ...String:
MMGHRPVLVL SQNTKRESGR KVQSGNINAA KTIADIIRTC LGPKSMMKML LDPMGGIVMT NDGNAILREI QVQHPAAKSM IEISRTQDE EVGDGTTSVI ILAGEMLSVA EHFLEQQMHP TVVISAYRKA LDDMISTLKK ISIPVDISDS DMMLNIINSS I TTKAISRW SSLACNIALD AVKMVQFEEN GRKEIDIKKY ARVEKIPGGI IEDSCVLRGV MINKDVTHPR MRRYIKNPRI VL LDSSLEY KKGESQTDIE ITREEDFTRI LQMEEEYIQQ LCEDIIQLKP DVVITEKGIS DLAQHYLMRA NITAIRRVRK TDN NRIARA CGARIVSRPE ELREDDVGTG AGLLEIKKIG DEYFTFITDC KDPKACTILL RGASKEILSE VERNLQDAMQ VCRN VLLDP QLVPGGGASE MAVAHALTEK SKAMTGVEQW PYRAVAQALE VIPRTLIQNC GASTIRLLTS LRAKHTQENC ETWGV NGET GTLVDMKELG IWEPLAVKLQ TYKTAVETAV LLLRIDDIVS GHKKKGDDQS RQGGAPDAGQ E

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Macromolecule #6: T-complex protein 1 subunit eta

MacromoleculeName: T-complex protein 1 subunit eta / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 59.417457 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MMPTPVILLK EGTDSSQGIP QLVSNISACQ VIAEAVRTTL GPRGMDKLIV DGRGKATISN DGATILKLLD VVHPAAKTLV DIAKSQDAE VGDGTTSVTL LAAEFLKQVK PYVEEGLHPQ IIIRAFRTAT QLAVNKIKEI AVTVKKADKV EQRKLLEKCA M TALSSKLI ...String:
MMPTPVILLK EGTDSSQGIP QLVSNISACQ VIAEAVRTTL GPRGMDKLIV DGRGKATISN DGATILKLLD VVHPAAKTLV DIAKSQDAE VGDGTTSVTL LAAEFLKQVK PYVEEGLHPQ IIIRAFRTAT QLAVNKIKEI AVTVKKADKV EQRKLLEKCA M TALSSKLI SQQKAFFAKM VVDAVMMLDD LLQLKMIGIK KVQGGALEDS QLVAGVAFKK TFSYAGFEMQ PKKYHNPKIA LL NVELELK AEKDNAEIRV HTVEDYQAIV DAEWNILYDK LEKIHHSGAK VVSSKLPIGD VATQYFADRD MFCAGRVPEE DLK RTMMAC GGSIQTSVNA LSADVLGRCQ VFEETQIGGE RYNFFTGCPK AKTCTFILRG GAEQFMEETE RSLHDAIMIV RRAI KNDSV VAGGGAIEME LSKYLRDYSR TIPGKQQLLI GAYAKALEII PRQLCDNAGF DATNILNKLR ARHAQGGTWY GVDIN NEDI ADNFEAFVWE PAMVRINALT AASEAACLIV SVDETIKNPR STVDAPTAAG RGRGRGRPH

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Macromolecule #7: T-complex protein 1 subunit theta

MacromoleculeName: T-complex protein 1 subunit theta / type: protein_or_peptide / ID: 7 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 59.691422 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MALHVPKAPG FAQMLKEGAK HFSGLEEAVY RNIQACKELA QTTRTAYGPN GMNKMVINHL EKLFVTNDAA TILRELEVQH PAAKMIVMA SHMQEQEVGD GTNFVLVFAG ALLELAEELL RIGLSVSEVI EGYEIACRKA HEILPNLVCC SAKNLRDIDE V SSLLRTSI ...String:
MALHVPKAPG FAQMLKEGAK HFSGLEEAVY RNIQACKELA QTTRTAYGPN GMNKMVINHL EKLFVTNDAA TILRELEVQH PAAKMIVMA SHMQEQEVGD GTNFVLVFAG ALLELAEELL RIGLSVSEVI EGYEIACRKA HEILPNLVCC SAKNLRDIDE V SSLLRTSI MSKQYGNEVF LAKLIAQACV SIFPDSGHFN VDNIRVCKIL GSGISSSSVL HGMVFKKETE GDVTSVKDAK IA VYSCPFD GMITETKGTV LIKTAEELMN FSKGEENLMD AQVKAIADTG ANVVVTGGKV ADMALHYANK YNIMLVRLNS KWD LRRLCK TVGATALPRL TPPVLEEMGH CDSVYLSEVG DTQVVVFKHE KEDGAISTIV LRGSTDNLMD DIERAVDDGV NTFK VLTRD KRLVPGGGAT EIELAKQITS YGETCPGLEQ YAIKKFAEAF EAIPRALAEN SGVKANEVIS KLYAVHQEGN KNVGL DIEA EVPAVKDMLE AGILDTYLGK YWAIKLATNA AVTVLRVDQI IMAKPAGGPK PPSGKKDWDD DQND

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Macromolecule #8: T-complex protein 1 subunit zeta

MacromoleculeName: T-complex protein 1 subunit zeta / type: protein_or_peptide / ID: 8 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 58.106086 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MAAVKTLNPK AEVARAQAAL AVNISAARGL QDVLRTNLGP KGTMKMLVSG AGDIKLTKDG NVLLHEMQIQ HPTASLIAKV ATAQDDITG DGTTSNVLII GELLKQADLY ISEGLHPRII TEGFEAAKEK ALQFLEEVKV SREMDRETLI DVARTSLRTK V HAELADVL ...String:
MAAVKTLNPK AEVARAQAAL AVNISAARGL QDVLRTNLGP KGTMKMLVSG AGDIKLTKDG NVLLHEMQIQ HPTASLIAKV ATAQDDITG DGTTSNVLII GELLKQADLY ISEGLHPRII TEGFEAAKEK ALQFLEEVKV SREMDRETLI DVARTSLRTK V HAELADVL TEAVVDSILA IKKQDEPIDL FMIEIMEMKH KSETDTSLIR GLVLDHGARH PDMKKRVEDA YILTCNVSLE YE KTEVNSG FFYKSAEERE KLVKAERKFI EDRVKKIIEL KRKVCGDSDK GFVVINQKGI DPFSLDALSK EGIVALRRAK RRN MERLTL ACGGVALNSF DDLSPDCLGH AGLVYEYTLG EEKFTFIEKC NNPRSVTLLI KGPNKHTLTQ IKDAVRDGLR AVKN AIDDG CVVPGAGAVE VAMAEALIKH KPSVKGRAQL GVQAFADALL IIPKVLAQNS GFDLQETLVK IQAEHSESGQ LVGVD LNTG EPMVAAEVGV WDNYCVKKQL LHSCTVIATN ILLVDEIMRA GMSSLKG

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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

BufferpH: 7.5 / Component - Concentration: 50.0 mM / Component - Formula: NaClSodium chloride / Component - Name: sodium Chloride
VitrificationCryogen name: ETHANE

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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 / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.8 µm
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 38.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 185216

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