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- EMDB-64175: SARS-CoV-2 E-RTC in complex with RNA-nsp9 and GMPPNP -

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Basic information

Entry
Database: EMDB / ID: EMD-64175
TitleSARS-CoV-2 E-RTC in complex with RNA-nsp9 and GMPPNP
Map data
Sample
  • Complex: E-RTC_RNA-nsp9_GMPPNP
    • Protein or peptide: x 5 types
    • RNA: x 3 types
  • Ligand: x 3 types
KeywordsSARS-COV-2 / CAPPING / CRYO-EM / PROTEIN / VIRAL PROTEIN/RNA / VIRAL PROTEIN-RNA complex
Function / homology
Function and homology information


protein guanylyltransferase activity / RNA endonuclease activity producing 3'-phosphomonoesters, hydrolytic mechanism / mRNA guanylyltransferase activity / 5'-3' RNA helicase activity / Lyases; Phosphorus-oxygen lyases / Assembly of the SARS-CoV-2 Replication-Transcription Complex (RTC) / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / Maturation of replicase proteins / ISG15-specific peptidase activity / TRAF3-dependent IRF activation pathway ...protein guanylyltransferase activity / RNA endonuclease activity producing 3'-phosphomonoesters, hydrolytic mechanism / mRNA guanylyltransferase activity / 5'-3' RNA helicase activity / Lyases; Phosphorus-oxygen lyases / Assembly of the SARS-CoV-2 Replication-Transcription Complex (RTC) / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / Maturation of replicase proteins / ISG15-specific peptidase activity / TRAF3-dependent IRF activation pathway / Transcription of SARS-CoV-2 sgRNAs / Translation of Replicase and Assembly of the Replication Transcription Complex / snRNP Assembly / Replication of the SARS-CoV-2 genome / Hydrolases; Acting on ester bonds; Exoribonucleases producing 5'-phosphomonoesters / double membrane vesicle viral factory outer membrane / host cell endoplasmic reticulum-Golgi intermediate compartment / SARS coronavirus main proteinase / 5'-3' DNA helicase activity / 3'-5'-RNA exonuclease activity / host cell endosome / symbiont-mediated degradation of host mRNA / mRNA guanylyltransferase / symbiont-mediated suppression of host ISG15-protein conjugation / G-quadruplex RNA binding / symbiont-mediated suppression of host toll-like receptor signaling pathway / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity / omega peptidase activity / mRNA (guanine-N7)-methyltransferase / SARS-CoV-2 modulates host translation machinery / methyltransferase cap1 / host cell Golgi apparatus / symbiont-mediated suppression of host NF-kappaB cascade / symbiont-mediated perturbation of host ubiquitin-like protein modification / DNA helicase / methyltransferase cap1 activity / ubiquitinyl hydrolase 1 / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / cysteine-type deubiquitinase activity / Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases / single-stranded RNA binding / host cell perinuclear region of cytoplasm / regulation of autophagy / viral protein processing / lyase activity / host cell endoplasmic reticulum membrane / RNA helicase / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / symbiont-mediated suppression of host gene expression / copper ion binding / viral translational frameshifting / symbiont-mediated activation of host autophagy / RNA-directed RNA polymerase / cysteine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / lipid binding / DNA-templated transcription / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell nucleus / ATP hydrolysis activity / proteolysis / RNA binding / zinc ion binding / ATP binding / membrane
Similarity search - Function
RNA-dependent RNA polymerase, SARS-CoV-like / Nonstructural protein 14, betacoronavirus / NSP15, NendoU domain, coronavirus / Nonstructural protein 15, middle domain, alpha/betacoronavirus / Nonstructural protein 15, N-terminal domain, alpha/beta-coronavirus / NSP14, guanine-N7-methyltransferase domain, coronavirus / Coronavirus (CoV) guanine-N7-methyltransferase (N7-MTase) domain profile. / Coronavirus (CoV) Nsp15 N-terminal oligomerization domain profile. / NSP12 RNA-dependent RNA polymerase, coronavirus / : ...RNA-dependent RNA polymerase, SARS-CoV-like / Nonstructural protein 14, betacoronavirus / NSP15, NendoU domain, coronavirus / Nonstructural protein 15, middle domain, alpha/betacoronavirus / Nonstructural protein 15, N-terminal domain, alpha/beta-coronavirus / NSP14, guanine-N7-methyltransferase domain, coronavirus / Coronavirus (CoV) guanine-N7-methyltransferase (N7-MTase) domain profile. / Coronavirus (CoV) Nsp15 N-terminal oligomerization domain profile. / NSP12 RNA-dependent RNA polymerase, coronavirus / : / Coronavirus Nsp12 RNA-dependent RNA polymerase (RdRp) domain profile. / Coronavirus Nsp12 Interface domain profile. / : / : / Coronavirus Nonstructural protein 13, 1B domain / Coronavirus Non-structural protein 13, zinc-binding domain / Coronavirus Nonstructural protein 13, stalk domain / Nidovirus 2-O-methyltransferase / Nidovirus 2'-O-methyltransferase (2'-O-MTase) domain profile. / Non-structural protein NSP15, N-terminal domain superfamily, coronavirus / Non-structural protein NSP15, middle domain superfamily / Coronavirus replicase NSP15, N-terminal oligomerization / Nonstructural protein 15, middle domain, coronavirus / Nonstructural protein 13, 1B domain, coronavirus / Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation / Nidovirus 3'-5' exoribonuclease domain / Nidovirus 3'-5' exoribonuclease (ExoN) domain profile. / Non-structural protein NSP16, coronavirus-like / Non-structural protein 14, coronavirus / RNA polymerase, N-terminal, coronavirus / Coronavirus 2'-O-methyltransferase / Coronavirus proofreading exoribonuclease / Coronavirus RNA-dependent RNA polymerase, N-terminal / Nonstructural protein 13, zinc-binding domain, coronavirus-like / Coronaviridae zinc-binding (CV ZBD) domain profile. / Arterivirus Nsp11 N-terminal/Coronavirus NSP15 middle domain / Arterivirus Nsp11 N-terminal/coronavirus NSP15 middle (AV-Nsp11N/CoV-Nsp15M) domain profile. / Nidoviral uridylate-specific endoribonuclease (NendoU) domain profile. / Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domain / Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domain profile. / Endoribonuclease EndoU-like / NendoU domain, nidovirus / Coronavirus replicase NSP15, uridylate-specific endoribonuclease / : / Lipocalin signature. / DNA2/NAM7 helicase-like, C-terminal / AAA domain / (+) RNA virus helicase core domain / (+)RNA virus helicase core domain profile. / Non-structural protein NSP3, SUD-N (Mac2) domain, betacoronavirus / Sarbecovirus Nsp3c-N domain profile. / Non-structural protein NSP3, N-terminal, betacoronavirus / Polyprotein cleavage domain PL2pro superfamily, betacoronavirus / Non-structural protein NSP3, SUD-N (Mac2) domain superfamily, betacoronavirus / Betacoronavirus SUD-C domain / Betacoronavirus replicase NSP3, N-terminal / NSP1 globular domain superfamily, betacoronavirus / Non-structural protein 2, SARS-CoV-like / Carbamoyl-phosphate synthase subdomain signature 2. / Betacoronavirus Nsp3c-M domain profile. / NSP1, globular domain, betacoronavirus / Non-structural protein NSP3, SUD-M domain, betacoronavirus / Non-structural protein NSP3, SUD-M domain superfamily, betacoronavirus / Betacoronavirus replicase NSP1 / Betacoronavirus single-stranded poly(A) binding domain / NSP1, C-terminal domain, betacoronavirus / : / Betacoronavirus (BetaCoV) Nsp1 C-terminal domain profile. / Betacoronavirus Nsp3e group 2-specific marker (G2M) domain profile. / Betacoronavirus Nsp3c-C domain profile. / Betacoronavirus Nsp3e nucleic acid-binding (NAB) domain profile. / DPUP/SUD, C-terminal, betacoronavirus / Non-structural protein NSP3, nucleic acid-binding domain, betacoronavirus / Non-structural protein NSP3A domain-like superfamily / Non-structural protein NSP3, nucleic acid-binding domain superfamily, betacoronavirus / Non-structural protein 6, betacoronavirus / Betacoronavirus nucleic acid-binding (NAB) / Papain-like viral protease, palm and finger domains, coronavirus / Papain-like protease, N-terminal domain superfamily, coronavirus / Coronavirus replicase NSP2, N-terminal / : / Coronavirus replicase NSP2, C-terminal / Coronavirus (CoV) Nsp2 middle domain profile. / NSP1, globular domain, alpha/betacoronavirus / Coronavirus (CoV) Nsp1 globular domain profile. / Coronavirus (CoV) Nsp2 N-terminal domain profile. / Coronavirus (CoV) Nsp2 C-terminal domain profile. / Nonstructural protein 2, N-terminal domain, coronavirus / Non-structural protein 2, C-terminal domain, coronavirus / NSP3, second ubiquitin-like (Ubl) domain, coronavirus / Coronavirus Nsp3a Ubl domain profile. / Coronavirus Nsp3d Ubl domain profile. / NSP3, first ubiquitin-like (Ubl) domain, coronavirus / Peptidase family C16 domain profile. / : / : / Coronavirus replicase NSP7 / Coronavirus 3Ecto domain profile. / Coronavirus RNA-dependent RNA polymerase (RdRp) Nsp7 cofactor domain profile.
Similarity search - Domain/homology
Replicase polyprotein 1ab
Similarity search - Component
Biological speciesSevere acute respiratory syndrome coronavirus 2
Methodsingle particle reconstruction / cryo EM / Resolution: 2.89 Å
AuthorsHuang YC / Liu YX / Lou ZY / Rao ZH / Yan LM
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: To Be Published
Title: Response to Matter Arising: Substrate selection and transition state support the mechanism for GTP-mediate RNA capping catalyzed by SARS-CoV-2 NiRAN
Authors: Huang Y / Tan L / Liu Y / Yan L / Rao Z / Lou Z
History
DepositionApr 14, 2025-
Header (metadata) releaseJun 11, 2025-
Map releaseJun 11, 2025-
UpdateJun 11, 2025-
Current statusJun 11, 2025Processing site: PDBc / Status: Released

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Structure visualization

Downloads & links

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Map

FileDownload / File: emd_64175.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.96 Å
Density
Contour LevelBy AUTHOR: 0.4
Minimum - Maximum-1.0634373 - 2.4801133
Average (Standard dev.)-0.0002723438 (±0.0474179)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 384.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : E-RTC_RNA-nsp9_GMPPNP

EntireName: E-RTC_RNA-nsp9_GMPPNP
Components
  • Complex: E-RTC_RNA-nsp9_GMPPNP
    • Protein or peptide: RNA-directed RNA polymerase nsp12
    • Protein or peptide: Non-structural protein 8
    • Protein or peptide: Non-structural protein 7
    • Protein or peptide: Helicase nsp13
    • Protein or peptide: Viral protein genome-linked nsp9
    • RNA: RNA (5'-R(P*AP*UP*UP*A)-3')
    • RNA: PRIMER
    • RNA: TEMPLATE
  • Ligand: ZINC ION
  • Ligand: PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
  • Ligand: water

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Supramolecule #1: E-RTC_RNA-nsp9_GMPPNP

SupramoleculeName: E-RTC_RNA-nsp9_GMPPNP / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#8
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

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Macromolecule #1: RNA-directed RNA polymerase nsp12

MacromoleculeName: RNA-directed RNA polymerase nsp12 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: RNA-directed RNA polymerase
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 106.780977 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: SADAQSFLNR VCGVSAARLT PCGTGTSTDV VYRAFDIYND KVAGFAKFLK TNCCRFQEKD EDDNLIDSYF VVKRHTFSNY QHEETIYNL LKDCPAVAKH DFFKFRIDGD MVPHISRQRL TKYTMADLVY ALRHFDEGNC DTLKEILVTY NCCDDDYFNK K DWYDFVEN ...String:
SADAQSFLNR VCGVSAARLT PCGTGTSTDV VYRAFDIYND KVAGFAKFLK TNCCRFQEKD EDDNLIDSYF VVKRHTFSNY QHEETIYNL LKDCPAVAKH DFFKFRIDGD MVPHISRQRL TKYTMADLVY ALRHFDEGNC DTLKEILVTY NCCDDDYFNK K DWYDFVEN PDILRVYANL GERVRQALLK TVQFCDAMRN AGIVGVLTLD NQDLNGNWYD FGDFIQTTPG SGVPVVDSYY SL LMPILTL TRALTAESHV DTDLTKPYIK WDLLKYDFTE ERLKLFDRYF KYWDQTYHPN CVNCLDDRCI LHCANFNVLF STV FPPTSF GPLVRKIFVD GVPFVVSTGY HFRELGVVHN QDVNLHSSRL SFKELLVYAA DPAMHAASGN LLLDKRTTCF SVAA LTNNV AFQTVKPGNF NKDFYDFAVS KGFFKEGSSV ELKHFFFAQD GNAAISDYDY YRYNLPTMCD IRQLLFVVEV VDKYF DCYD GGCINANQVI VNNLDKSAGF PFNKWGKARL YYDSMSYEDQ DALFAYTKRN VIPTITQMNL KYAISAKNRA RTVAGV SIC STMTNRQFHQ KLLKSIAATR GATVVIGTSK FYGGWHNMLK TVYSDVENPH LMGWDYPKCD RAMPNMLRIM ASLVLAR KH TTCCSLSHRF YRLANECAQV LSEMVMCGGS LYVKPGGTSS GDATTAYANS VFNICQAVTA NVNALLSTDG NKIADKYV R NLQHRLYECL YRNRDVDTDF VNEFYAYLRK HFSMMILSDD AVVCFNSTYA SQGLVASIKN FKSVLYYQNN VFMSEAKCW TETDLTKGPH EFCSQHTMLV KQGDDYVYLP YPDPSRILGA GCFVDDIVKT DGTLMIERFV SLAIDAYPLT KHPNQEYADV FHLYLQYIR KLHDELTGHM LDMYSVMLTN DNTSRYWEPE FYEAMYTPHT VLQ

UniProtKB: Replicase polyprotein 1ab

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Macromolecule #2: Non-structural protein 8

MacromoleculeName: Non-structural protein 8 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 21.903047 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: AIASEFSSLP SYAAFATAQE AYEQAVANGD SEVVLKKLKK SLNVAKSEFD RDAAMQRKLE KMADQAMTQM YKQARSEDKR AKVTSAMQT MLFTMLRKLD NDALNNIINN ARDGCVPLNI IPLTTAAKLM VVIPDYNTYK NTCDGTTFTY ASALWEIQQV V DADSKIVQ ...String:
AIASEFSSLP SYAAFATAQE AYEQAVANGD SEVVLKKLKK SLNVAKSEFD RDAAMQRKLE KMADQAMTQM YKQARSEDKR AKVTSAMQT MLFTMLRKLD NDALNNIINN ARDGCVPLNI IPLTTAAKLM VVIPDYNTYK NTCDGTTFTY ASALWEIQQV V DADSKIVQ LSEISMDNSP NLAWPLIVTA LRANSAVKLQ

UniProtKB: Replicase polyprotein 1ab

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Macromolecule #3: Non-structural protein 7

MacromoleculeName: Non-structural protein 7 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 8.678143 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString:
SKMSDVKCTS VVLLSVLQQL RVESSSKLWA QCVQLHNDIL LAKDTTEAFE KMVSLLSVLL SMQGAVDINK LCEEMLDN

UniProtKB: Replicase polyprotein 1ab

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Macromolecule #4: Helicase nsp13

MacromoleculeName: Helicase nsp13 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA helicase
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 65.989438 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: AVGACVLCNS QTSLRCGACI RRPFLCCKCC YDHVISTSHK LVLSVNPYVC NAPGCDVTDV TQLYLGGMSY YCKSHKPPIS FPLCANGQV FGLYKNTCVG SDNVTDFNAI ATCDWTNAGD YILANTCTER LKLFAAETLK ATEETFKLSY GIATVREVLS D RELHLSWE ...String:
AVGACVLCNS QTSLRCGACI RRPFLCCKCC YDHVISTSHK LVLSVNPYVC NAPGCDVTDV TQLYLGGMSY YCKSHKPPIS FPLCANGQV FGLYKNTCVG SDNVTDFNAI ATCDWTNAGD YILANTCTER LKLFAAETLK ATEETFKLSY GIATVREVLS D RELHLSWE VGKPRPPLNR NYVFTGYRVT KNSKVQIGEY TFEKGDYGDA VVYRGTTTYK LNVGDYFVLT SHTVMPLSAP TL VPQEHYV RITGLYPTLN ISDEFSSNVA NYQKVGMQKY STLQGPPGTG KSHFAIGLAL YYPSARIVYT ACSHAAVDAL CEK ALKYLP IDKCSRIIPA RARVECFDKF KVNSTLEQYV FCTVNALPET TADIVVFDEI SMATNYDLSV VNARLRAKHY VYIG DPAQL PAPRTLLTKG TLEPEYFNSV CRLMKTIGPD MFLGTCRRCP AEIVDTVSAL VYDNKLKAHK DKSAQCFKMF YKGVI THDV SSAINRPQIG VVREFLTRNP AWRKAVFISP YNSQNAVASK ILGLPTQTVD SSQGSEYDYV IFTQTTETAH SCNVNR FNV AITRAKVGIL CIMSDRDLYD KLQFTSLEIP

UniProtKB: Replicase polyprotein 1ab

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Macromolecule #5: Viral protein genome-linked nsp9

MacromoleculeName: Viral protein genome-linked nsp9 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 12.391171 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString:
NNELSPVALR QMSCAAGTTQ TACTDDNALA YYNTTKGGRF VLALLSDLQD LKWARFPKSD GTGTIYTELE PPCRFVTDTP KGPKVKYLY FIKGLNNLNR GMVLGSLAAT VRLQ

UniProtKB: Replicase polyprotein 1ab

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Macromolecule #6: RNA (5'-R(P*AP*UP*UP*A)-3')

MacromoleculeName: RNA (5'-R(P*AP*UP*UP*A)-3') / type: rna / ID: 6 / Number of copies: 1
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 1.225786 KDa
SequenceString:
AUUA

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Macromolecule #7: PRIMER

MacromoleculeName: PRIMER / type: rna / ID: 7 / Number of copies: 1
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 8.172932 KDa
SequenceString:
GCGGUAGUAG CAUGCUAGGG AGCAG

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Macromolecule #8: TEMPLATE

MacromoleculeName: TEMPLATE / type: rna / ID: 8 / Number of copies: 1
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 8.522079 KDa
SequenceString:
UGACUGCUCC CUAGCAUGCU ACUACCG

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Macromolecule #9: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 9 / Number of copies: 8 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Macromolecule #10: PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER

MacromoleculeName: PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER / type: ligand / ID: 10 / Number of copies: 1 / Formula: GNP
Molecular weightTheoretical: 522.196 Da
Chemical component information

ChemComp-GNP:
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER / GppNHp, GMPPNP, energy-carrying molecule analogue*YM

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Macromolecule #11: water

MacromoleculeName: water / type: ligand / ID: 11 / Number of copies: 1 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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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
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recording#0 - Image recording ID: 1 / #0 - Film or detector model: GATAN K2 QUANTUM (4k x 4k) / #0 - Average electron dose: 60.0 e/Å2 / #1 - Image recording ID: 2 / #1 - Film or detector model: FEI FALCON IV (4k x 4k) / #1 - Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: TUNGSTEN HAIRPIN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing #1

Image processing ID1
Image recording ID2
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: OTHER
Initial angle assignmentType: OTHER
Final angle assignmentType: ANGULAR RECONSTITUTION

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Image processing #2

Image processing ID2
Image recording ID2
Startup modelType of model: OTHER
Initial angle assignmentType: OTHER
Final angle assignmentType: ANGULAR RECONSTITUTION

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Image processing #3

Image processing ID3
Image recording ID2
Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.89 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 70998
Initial angle assignmentType: OTHER
Final angle assignmentType: ANGULAR RECONSTITUTION

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