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- PDB-6g4w: Cryo-EM structure of a late human pre-40S ribosomal subunit - State A -

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Basic information

Entry
Database: PDB / ID: 6g4w
TitleCryo-EM structure of a late human pre-40S ribosomal subunit - State A
Components
  • (40S ribosomal protein ...) x 22
  • 18S ribosomal RNA
  • Bystin
  • Multifunctional methyltransferase subunit TRM112-like protein
  • Pre-rRNA-processing protein TSR1 homolog
  • Probable 18S rRNA (guanine-N(7))-methyltransferase
  • RNA-binding protein PNO1
  • RRP12
  • UNKNOWN
  • UNKNOWN HELIX
KeywordsRIBOSOME / 40S / pre-40S / ribosome biogenesis
Function / homology
Function and homology information


peptidyl-glutamine methylation / tRNA (m2G10) methyltransferase complex / rRNA (guanine-N7)-methylation / regulation of protein localization to nucleolus / tRNA methyltransferase activator activity / rRNA (guanine) methyltransferase activity / tRNA modification in the nucleus and cytosol / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Methylation / trophectodermal cell differentiation ...peptidyl-glutamine methylation / tRNA (m2G10) methyltransferase complex / rRNA (guanine-N7)-methylation / regulation of protein localization to nucleolus / tRNA methyltransferase activator activity / rRNA (guanine) methyltransferase activity / tRNA modification in the nucleus and cytosol / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Methylation / trophectodermal cell differentiation / protein methyltransferase activity / tRNA methylation / positive regulation of rRNA processing / positive regulation of respiratory burst involved in inflammatory response / nucleolus organization / rRNA methylation / negative regulation of RNA splicing / neural crest cell differentiation / U3 snoRNA binding / negative regulation of bicellular tight junction assembly / rRNA modification in the nucleus and cytosol / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / snoRNA binding / preribosome, small subunit precursor / negative regulation of ubiquitin protein ligase activity / Ribosomal scanning and start codon recognition / Translation initiation complex formation / fibroblast growth factor binding / monocyte chemotaxis / Protein hydroxylation / TOR signaling / SARS-CoV-1 modulates host translation machinery / mTORC1-mediated signalling / cellular response to ethanol / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / Response of EIF2AK4 (GCN2) to amino acid deficiency / positive regulation of signal transduction by p53 class mediator / negative regulation of ubiquitin-dependent protein catabolic process / SRP-dependent cotranslational protein targeting to membrane / Viral mRNA Translation / negative regulation of respiratory burst involved in inflammatory response / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / Major pathway of rRNA processing in the nucleolus and cytosol / regulation of translational fidelity / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / maturation of LSU-rRNA / Nuclear events stimulated by ALK signaling in cancer / ribosomal small subunit export from nucleus / rough endoplasmic reticulum / translation regulator activity / positive regulation of cell cycle / translation initiation factor binding / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / MDM2/MDM4 family protein binding / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / cytosolic ribosome / stress granule assembly / transcription initiation-coupled chromatin remodeling / Resolution of Sister Chromatid Cohesion / Transferases; Transferring one-carbon groups; Methyltransferases / cellular response to leukemia inhibitory factor / positive regulation of translation / innate immune response in mucosa / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / erythrocyte differentiation / stem cell proliferation / mRNA 3'-UTR binding / methyltransferase activity / maturation of SSU-rRNA / liver regeneration / neural tube closure / translational initiation / small-subunit processome / RHO GTPases Activate Formins / response to insulin / maintenance of translational fidelity / GABA-ergic synapse / mRNA 5'-UTR binding / modification-dependent protein catabolic process / response to virus / Regulation of expression of SLITs and ROBOs / protein tag activity / cytoplasmic ribonucleoprotein granule / osteoblast differentiation / rRNA processing / antimicrobial humoral immune response mediated by antimicrobial peptide / Separation of Sister Chromatids / antibacterial humoral response / apical part of cell / glucose homeostasis
Similarity search - Function
18S rRNA (guanine(1575)-N(7))-methyltransferase Bud23, C-terminal / 18S rRNA (guanine(1575)-N(7))-methyltransferase Bud23-like / Methyltransferase involved in Williams-Beuren syndrome / Low temperature viability protein Ltv1 / Low temperature viability protein / Multifunctional methyltransferase subunit Trm112 / Trm112-like / Trm112p-like protein / Tsr1, G-like domain / Methyltransferase type 11 ...18S rRNA (guanine(1575)-N(7))-methyltransferase Bud23, C-terminal / 18S rRNA (guanine(1575)-N(7))-methyltransferase Bud23-like / Methyltransferase involved in Williams-Beuren syndrome / Low temperature viability protein Ltv1 / Low temperature viability protein / Multifunctional methyltransferase subunit Trm112 / Trm112-like / Trm112p-like protein / Tsr1, G-like domain / Methyltransferase type 11 / Methyltransferase domain / Bystin / Bystin / : / : / Eukaryotic type KH-domain (KH-domain type I) (327.11.2) / Ribosome biogenesis protein BMS1/TSR1, C-terminal / AARP2CN / Bms1/Tsr1-type G domain / Ribosome biogenesis protein Bms1/Tsr1 / 40S ribosome biogenesis protein Tsr1 and BMS1 C-terminal / AARP2CN (NUC121) domain / Bms1-type guanine nucleotide-binding (G) domain profile. / AARP2CN (NUC121) domain / Protein of unknown function (DUF663) / K Homology domain, type 1 superfamily / Ubiquitin-like protein FUBI / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / : / Ribosomal protein S7e signature. / Ribosomal protein S8e subdomain, eukaryotes / Ribosomal protein S17e, conserved site / Ribosomal protein S17e signature. / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein S3Ae, conserved site / Ribosomal protein S3Ae signature. / Ribosomal protein S30 / Ribosomal protein S30 / Ribosomal protein S27e signature. / Ribosomal protein S4e, N-terminal, conserved site / Ribosomal protein S4e signature. / 40S ribosomal protein S4, C-terminal domain / 40S ribosomal protein S4 C-terminus / Ribosomal protein S19e / Ribosomal protein S8e, conserved site / Ribosomal protein S19e / Ribosomal protein S8e signature. / Ribosomal_S19e / Ribosomal protein S6, eukaryotic / Ribosomal protein S7e / Ribosomal protein S7e / 40S ribosomal protein S1/3, eukaryotes / Ribosomal protein S19A/S15e / 40S ribosomal protein S11, N-terminal / Ribosomal_S17 N-terminal / Ribosomal protein S17e / Ribosomal protein S17e-like superfamily / Ribosomal S17 / : / Ribosomal S24e conserved site / Ribosomal protein S24e signature. / Ribosomal protein S4e, N-terminal / RS4NT (NUC023) domain / Ribosomal protein S4, KOW domain / Ribosomal protein S4e / Ribosomal protein S4e, central region / Ribosomal protein S4e, central domain superfamily / Ribosomal family S4e / Ribosomal protein S23, eukaryotic/archaeal / Ribosomal protein S6/S6e/A/B/2, conserved site / Ribosomal protein S6e signature. / Ribosomal protein S24e / Ribosomal protein S24e / Ribosomal protein S27 / Ribosomal protein S27, zinc-binding domain superfamily / Ribosomal protein S27 / Ribosomal protein S17, archaeal/eukaryotic / Ribosomal protein S8e / Ribosomal protein S3Ae / Ribosomal S3Ae family / Ribosomal S3Ae family / Ribosomal protein S28e conserved site / Ribosomal protein S28e signature. / Ribosomal protein S28e / Ribosomal protein S28e / Ribosomal protein S6e / Ribosomal protein S6e / Ribosomal protein S5/S7, eukaryotic/archaeal / Ribosomal protein S6e / Ribosomal protein S13/S15, N-terminal / Ribosomal protein S15P / Ribosomal S13/S15 N-terminal domain / Ribosomal S13/S15 N-terminal domain / Ribosomal protein S4/S9, eukaryotic/archaeal / Ribosomal protein S8e/ribosomal biogenesis NSA2 / Ribosomal protein S8e / K Homology domain / K homology RNA-binding domain
Similarity search - Domain/homology
: / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / 18S rRNA (guanine-N(7))-methyltransferase / Small ribosomal subunit protein eS17 / Small ribosomal subunit protein eS19 / Small ribosomal subunit protein eS27 / Small ribosomal subunit protein uS4 ...: / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / 18S rRNA (guanine-N(7))-methyltransferase / Small ribosomal subunit protein eS17 / Small ribosomal subunit protein eS19 / Small ribosomal subunit protein eS27 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein eS1 / Small ribosomal subunit protein eS7 / Small ribosomal subunit protein eS8 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein uS17 / Small ribosomal subunit protein eS4, X isoform / Small ribosomal subunit protein eS6 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein eS24 / Small ribosomal subunit protein eS25 / Small ribosomal subunit protein eS28 / Ubiquitin-like FUBI-ribosomal protein eS30 fusion protein / Bystin / Pre-rRNA-processing protein TSR1 homolog / Protein LTV1 homolog / RNA-binding protein PNO1 / Multifunctional methyltransferase subunit TRM112-like protein
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.5 Å
AuthorsAmeismeier, M. / Cheng, J. / Berninghausen, O. / Beckmann, R.
Funding support Germany, 4items
OrganizationGrant numberCountry
German Research FoundationSFB646 Germany
German Research FoundationGRK1721 Germany
German Research FoundationFOR1805 Germany
European Research CouncilCRYOTRANSLATION Germany
CitationJournal: Nature / Year: 2018
Title: Visualizing late states of human 40S ribosomal subunit maturation.
Authors: Michael Ameismeier / Jingdong Cheng / Otto Berninghausen / Roland Beckmann /
Abstract: The formation of eukaryotic ribosomal subunits extends from the nucleolus to the cytoplasm and entails hundreds of assembly factors. Despite differences in the pathways of ribosome formation, high- ...The formation of eukaryotic ribosomal subunits extends from the nucleolus to the cytoplasm and entails hundreds of assembly factors. Despite differences in the pathways of ribosome formation, high-resolution structural information has been available only from fungi. Here we present cryo-electron microscopy structures of late-stage human 40S assembly intermediates, representing one state reconstituted in vitro and five native states that range from nuclear to late cytoplasmic. The earliest particles reveal the position of the biogenesis factor RRP12 and distinct immature rRNA conformations that accompany the formation of the 40S subunit head. Molecular models of the late-acting assembly factors TSR1, RIOK1, RIOK2, ENP1, LTV1, PNO1 and NOB1 provide mechanistic details that underlie their contribution to a sequential 40S subunit assembly. The NOB1 architecture displays an inactive nuclease conformation that requires rearrangement of the PNO1-bound 3' rRNA, thereby coordinating the final rRNA folding steps with site 3 cleavage.
History
DepositionMar 28, 2018Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 6, 2018Provider: repository / Type: Initial release
Revision 1.1Jun 20, 2018Group: Data collection / Database references / Category: citation / Item: _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Jun 27, 2018Group: Data collection / Database references / Category: citation
Item: _citation.journal_id_ISSN / _citation.journal_volume ..._citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3May 15, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
2: 18S ribosomal RNA
R: 40S ribosomal protein S17
b: 40S ribosomal protein S27
B: 40S ribosomal protein S3a
c: 40S ribosomal protein S28
E: 40S ribosomal protein S4, X isoform
e: 40S ribosomal protein S30
F: 40S ribosomal protein S5
H: 40S ribosomal protein S7
G: 40S ribosomal protein S6
Z: 40S ribosomal protein S25
Y: 40S ribosomal protein S24
x: RNA-binding protein PNO1
X: 40S ribosomal protein S23
w: Bystin
W: 40S ribosomal protein S15a
u: Pre-rRNA-processing protein TSR1 homolog
t: UNKNOWN
T: 40S ribosomal protein S19
S: 40S ribosomal protein S18
Q: 40S ribosomal protein S16
P: 40S ribosomal protein S15
O: 40S ribosomal protein S14
N: 40S ribosomal protein S13
L: 40S ribosomal protein S11
J: 40S ribosomal protein S9
I: 40S ribosomal protein S8
s: RRP12
r: Multifunctional methyltransferase subunit TRM112-like protein
q: Probable 18S rRNA (guanine-N(7))-methyltransferase
k: UNKNOWN HELIX


Theoretical massNumber of molelcules
Total (without water)1,293,68231
Polymers1,293,68231
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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RNA chain , 1 types, 1 molecules 2

#1: RNA chain 18S ribosomal RNA


Mass: 607057.688 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: GenBank: 151415227

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40S ribosomal protein ... , 22 types, 22 molecules RbBcEeFHGZYXWTSQPONLJI

#2: Protein 40S ribosomal protein S17 / Small ribosomal subunit protein eS17


Mass: 15578.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P08708
#3: Protein 40S ribosomal protein S27 / Metallopan-stimulin 1 / MPS-1 / Small ribosomal subunit protein eS27


Mass: 9480.186 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P42677
#4: Protein 40S ribosomal protein S3a / Small ribosomal subunit protein eS1 / v-fos transformation effector protein / Fte-1


Mass: 30002.061 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P61247
#5: Protein 40S ribosomal protein S28 / Small ribosomal subunit protein eS28


Mass: 7855.052 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62857
#6: Protein 40S ribosomal protein S4, X isoform / SCR10 / Single copy abundant mRNA protein / Small ribosomal subunit protein eS4


Mass: 29654.869 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62701
#7: Protein 40S ribosomal protein S30 / Small ribosomal subunit protein eS30


Mass: 6668.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62861
#8: Protein 40S ribosomal protein S5 / Small ribosomal subunit protein uS7


Mass: 22913.453 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P46782
#9: Protein 40S ribosomal protein S7 / Small ribosomal subunit protein eS7


Mass: 22168.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62081
#10: Protein 40S ribosomal protein S6 / Phosphoprotein NP33 / Small ribosomal subunit protein eS6


Mass: 28751.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62753
#11: Protein 40S ribosomal protein S25 / Small ribosomal subunit protein eS25


Mass: 13776.224 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62851
#12: Protein 40S ribosomal protein S24 / Small ribosomal subunit protein eS24


Mass: 15463.333 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62847
#14: Protein 40S ribosomal protein S23 / Small ribosomal subunit protein uS12


Mass: 15844.666 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62266
#16: Protein 40S ribosomal protein S15a / Small ribosomal subunit protein uS8


Mass: 14865.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62244
#19: Protein 40S ribosomal protein S19 / Small ribosomal subunit protein eS19


Mass: 16091.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P39019
#20: Protein 40S ribosomal protein S18 / Ke-3 / Ke3 / Small ribosomal subunit protein uS13


Mass: 17759.777 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62269
#21: Protein 40S ribosomal protein S16 / Small ribosomal subunit protein uS9


Mass: 16477.377 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62249
#22: Protein 40S ribosomal protein S15 / RIG protein / Small ribosomal subunit protein uS19


Mass: 17076.207 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62841
#23: Protein 40S ribosomal protein S14 / Small ribosomal subunit protein uS11


Mass: 16302.772 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62263
#24: Protein 40S ribosomal protein S13 / Small ribosomal subunit protein uS15


Mass: 17259.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62277
#25: Protein 40S ribosomal protein S11 / Small ribosomal subunit protein uS17


Mass: 18468.826 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62280
#26: Protein 40S ribosomal protein S9 / Small ribosomal subunit protein uS4


Mass: 22641.564 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P46781
#27: Protein 40S ribosomal protein S8 / Small ribosomal subunit protein eS8


Mass: 24263.387 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62241

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Protein , 6 types, 6 molecules xwusrq

#13: Protein RNA-binding protein PNO1


Mass: 27970.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q9NRX1
#15: Protein Bystin


Mass: 49673.258 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q13895
#17: Protein Pre-rRNA-processing protein TSR1 homolog


Mass: 91951.188 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q2NL82
#28: Protein RRP12


Mass: 68101.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293
#29: Protein Multifunctional methyltransferase subunit TRM112-like protein / tRNA methyltransferase 112 homolog


Mass: 14215.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q9UI30
#30: Protein Probable 18S rRNA (guanine-N(7))-methyltransferase / Bud site selection protein 23 homolog / Metastasis-related methyltransferase 1 / Williams-Beuren ...Bud site selection protein 23 homolog / Metastasis-related methyltransferase 1 / Williams-Beuren syndrome chromosomal region 22 protein / rRNA methyltransferase and ribosome maturation factor


Mass: 31925.428 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293
References: UniProt: O43709, Transferases; Transferring one-carbon groups; Methyltransferases

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Protein/peptide , 2 types, 2 molecules tk

#18: Protein/peptide UNKNOWN


Mass: 2054.328 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q96GA3*PLUS
#31: Protein/peptide UNKNOWN HELIX


Mass: 1368.494 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Cryo-EM structure of a late human pre-40S ribosomal subunit - State A
Type: RIBOSOME / Entity ID: all / Source: NATURAL
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.6
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 2.5 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 4.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 52414 / Symmetry type: POINT

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