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- PDB-7nau: Bacterial 30S ribosomal subunit assembly complex state C (Consens... -

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Basic information

Entry
Database: PDB / ID: 7nau
TitleBacterial 30S ribosomal subunit assembly complex state C (Consensus Refinement)
Components
  • (30S ribosomal protein ...) x 19
  • 16S rRNA
  • Ribosome maturation factor RimP
KeywordsRIBOSOME / Cryo-EM / 30S biogenesis / ribosome assembly / RbfA / RsgA / YjeQ / RimP / KsgA / RsmA
Function / homology
Function and homology information


mRNA base-pairing translational repressor activity / ornithine decarboxylase inhibitor activity / misfolded RNA binding / transcription antitermination factor activity, RNA binding / Group I intron splicing / RNA folding / four-way junction DNA binding / negative regulation of translational initiation / regulation of mRNA stability / mRNA regulatory element binding translation repressor activity ...mRNA base-pairing translational repressor activity / ornithine decarboxylase inhibitor activity / misfolded RNA binding / transcription antitermination factor activity, RNA binding / Group I intron splicing / RNA folding / four-way junction DNA binding / negative regulation of translational initiation / regulation of mRNA stability / mRNA regulatory element binding translation repressor activity / positive regulation of RNA splicing / DNA endonuclease activity / transcription elongation factor complex / regulation of DNA-templated transcription elongation / transcription antitermination / maintenance of translational fidelity / DNA-templated transcription termination / mRNA 5'-UTR binding / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / ribosomal small subunit assembly / cytosolic small ribosomal subunit / ribosome biogenesis / regulation of translation / cytoplasmic translation / small ribosomal subunit / tRNA binding / negative regulation of translation / rRNA binding / molecular adaptor activity / ribosome / structural constituent of ribosome / translation / response to antibiotic / mRNA binding / RNA binding / zinc ion binding / membrane / cytosol / cytoplasm
Similarity search - Function
Ribosome maturation factor RimP / Ribosome maturation factor RimP, N-terminal / Ribosome maturation factor RimP, C-terminal / RimP, N-terminal domain superfamily / Ribosome maturation factor RimP, C-terminal domain superfamily / RimP N-terminal domain / RimP C-terminal SH3 domain / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. ...Ribosome maturation factor RimP / Ribosome maturation factor RimP, N-terminal / Ribosome maturation factor RimP, C-terminal / RimP, N-terminal domain superfamily / Ribosome maturation factor RimP, C-terminal domain superfamily / RimP N-terminal domain / RimP C-terminal SH3 domain / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein S3, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein S19, bacterial-type / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S11, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein S9, bacterial/plastid / Ribosomal protein S4, bacterial-type / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / Ribosomal protein S16 / Ribosomal protein S16 / Ribosomal protein S16 domain superfamily / Ribosomal protein S15, bacterial-type / Ribosomal protein S2 signature 2. / Ribosomal protein S6 / Ribosomal protein S6 / Ribosomal protein S6 superfamily / Ribosomal protein S12, bacterial-type / Translation elongation factor EF1B/ribosomal protein S6 / Ribosomal protein S18 / Ribosomal protein S18 / Ribosomal protein S18 superfamily / K Homology domain / K homology RNA-binding domain / Ribosomal protein S3, conserved site / Ribosomal protein S14, conserved site / Ribosomal protein S10, conserved site / : / K Homology domain, type 2 / Ribosomal protein S3, C-terminal / Ribosomal protein S3, C-terminal domain superfamily / Ribosomal protein S15/S19, conserved site / KH domain / Ribosomal protein S19/S15 / Ribosomal protein S19/S15, superfamily / Ribosomal protein S10 / Ribosomal protein S3, C-terminal domain / Ribosomal protein S3 signature. / Ribosomal protein S10 signature. / Ribosomal protein S14 signature. / Ribosomal protein S7, conserved site / Ribosomal protein S17, conserved site / K homology domain superfamily, prokaryotic type / Ribosomal protein S19 / Ribosomal protein S2 signature 1. / Ribosomal protein S2, conserved site / Ribosomal protein S13, conserved site / Ribosomal protein S2 / Ribosomal protein S2, flavodoxin-like domain superfamily / Ribosomal protein S13 / 30s ribosomal protein S13, C-terminal / Ribosomal protein S2 / Ribosomal protein S4/S9 N-terminal domain / Ribosomal protein S14 / Ribosomal protein S4/S9, N-terminal / Ribosomal protein S4, conserved site / Type-2 KH domain profile. / Ribosomal protein S4/S9 N-terminal domain / Ribosomal protein S13/S18 / Ribosomal protein S4/S9 / Ribosomal protein S19 signature. / K homology domain-like, alpha/beta / Ribosomal protein S14p/S29e / Ribosomal protein S8 / Ribosomal protein S8 superfamily / Ribosomal protein S5, N-terminal, conserved site / Ribosomal protein S5 signature. / Ribosomal protein S5 / Ribosomal protein S5, N-terminal / Ribosomal S11, conserved site / Ribosomal protein S7 signature. / Ribosomal protein S10p/S20e / S5 double stranded RNA-binding domain profile. / Ribosomal protein S5, C-terminal / Ribosomal protein S9, conserved site / Ribosomal protein S5, N-terminal domain / Ribosomal protein S8 / Ribosomal protein S10 domain / Ribosomal protein S10 domain superfamily / Ribosomal protein S13-like, H2TH / Ribosomal protein S17 signature.
Similarity search - Domain/homology
RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS13 ...RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein bS16 / Small ribosomal subunit protein bS18 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein bS20 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Ribosome maturation factor RimP / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS17
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.78 Å
AuthorsSchedlbauer, A. / Iturrioz, I. / Ochoa-Lizarralde, B. / Diercks, T. / Kaminishi, T. / Capuni, R. / Astigarraga, E. / Gil-Carton, D. / Fucini, P. / Connell, S.
Funding support Spain, 2items
OrganizationGrant numberCountry
Ministry of Economy and Competitiveness (MINECO)CTQ2017-82222-R Spain
European CommissionPCIG14-GA-2013-632072 Spain
CitationJournal: Sci Adv / Year: 2021
Title: A conserved rRNA switch is central to decoding site maturation on the small ribosomal subunit.
Authors: Andreas Schedlbauer / Idoia Iturrioz / Borja Ochoa-Lizarralde / Tammo Diercks / Jorge Pedro López-Alonso / José Luis Lavin / Tatsuya Kaminishi / Retina Çapuni / Neha Dhimole / Elisa de ...Authors: Andreas Schedlbauer / Idoia Iturrioz / Borja Ochoa-Lizarralde / Tammo Diercks / Jorge Pedro López-Alonso / José Luis Lavin / Tatsuya Kaminishi / Retina Çapuni / Neha Dhimole / Elisa de Astigarraga / David Gil-Carton / Paola Fucini / Sean R Connell /
Abstract: While a structural description of the molecular mechanisms guiding ribosome assembly in eukaryotic systems is emerging, bacteria use an unrelated core set of assembly factors for which high- ...While a structural description of the molecular mechanisms guiding ribosome assembly in eukaryotic systems is emerging, bacteria use an unrelated core set of assembly factors for which high-resolution structural information is still missing. To address this, we used single-particle cryo-electron microscopy to visualize the effects of bacterial ribosome assembly factors RimP, RbfA, RsmA, and RsgA on the conformational landscape of the 30 ribosomal subunit and obtained eight snapshots representing late steps in the folding of the decoding center. Analysis of these structures identifies a conserved secondary structure switch in the 16 ribosomal RNA central to decoding site maturation and suggests both a sequential order of action and molecular mechanisms for the assembly factors in coordinating and controlling this switch. Structural and mechanistic parallels between bacterial and eukaryotic systems indicate common folding features inherent to all ribosomes.
History
DepositionJan 25, 2021Deposition site: PDBE / Processing site: PDBE
Revision 1.0Dec 8, 2021Provider: repository / Type: Initial release
Revision 1.1Apr 24, 2024Group: Data collection / Derived calculations / Category: chem_comp_atom / chem_comp_bond / struct_conn / Item: _struct_conn.pdbx_leaving_atom_flag

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Structure visualization

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Assembly

Deposited unit
A: 16S rRNA
B: 30S ribosomal protein S2
C: 30S ribosomal protein S3
D: 30S ribosomal protein S4
E: 30S ribosomal protein S5
F: 30S ribosomal protein S6
G: 30S ribosomal protein S7
H: 30S ribosomal protein S8
I: 30S ribosomal protein S9
J: 30S ribosomal protein S10
K: 30S ribosomal protein S11
L: 30S ribosomal protein S12
M: 30S ribosomal protein S13
N: 30S ribosomal protein S14
O: 30S ribosomal protein S15
P: 30S ribosomal protein S16
Q: 30S ribosomal protein S17
R: 30S ribosomal protein S18
S: 30S ribosomal protein S19
T: 30S ribosomal protein S20
X: Ribosome maturation factor RimP
hetero molecules


Theoretical massNumber of molelcules
Total (without water)799,40279
Polymers797,95121
Non-polymers1,45158
Water0
1


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

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Components

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30S ribosomal protein ... , 19 types, 19 molecules BCDEFGHIJKLMNOPQRST

#2: Protein 30S ribosomal protein S2 / / Small ribosomal subunit protein uS2


Mass: 26781.670 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7V0
#3: Protein 30S ribosomal protein S3 / / Small ribosomal subunit protein uS3


Mass: 26031.316 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7V3
#4: Protein 30S ribosomal protein S4 / / Small ribosomal subunit protein uS4


Mass: 23514.199 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7V8
#5: Protein 30S ribosomal protein S5 / / Small ribosomal subunit protein uS5


Mass: 17629.398 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7W1
#6: Protein 30S ribosomal protein S6 / / Small ribosomal subunit protein bS6


Mass: 15727.512 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P02358
#7: Protein 30S ribosomal protein S7 / / Small ribosomal subunit protein uS7


Mass: 20055.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P02359
#8: Protein 30S ribosomal protein S8 / / Small ribosomal subunit protein uS8


Mass: 14146.557 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7W7
#9: Protein 30S ribosomal protein S9 / / Small ribosomal subunit protein uS9


Mass: 14886.270 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7X3
#10: Protein 30S ribosomal protein S10 / / Small ribosomal subunit protein uS10 / Transcription termination/antitermination protein NusE


Mass: 11755.597 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7R5
#11: Protein 30S ribosomal protein S11 / / Small ribosomal subunit protein uS11


Mass: 13870.975 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7R9
#12: Protein 30S ribosomal protein S12 / / Small ribosomal subunit protein uS12


Mass: 13814.249 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7S3
#13: Protein 30S ribosomal protein S13 / / Small ribosomal subunit protein uS13


Mass: 13128.467 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7S9
#14: Protein 30S ribosomal protein S14 / / Small ribosomal subunit protein uS14


Mass: 11606.560 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0AG59
#15: Protein 30S ribosomal protein S15 / / Small ribosomal subunit protein uS15


Mass: 10290.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0ADZ4
#16: Protein 30S ribosomal protein S16 / / Small ribosomal subunit protein bS16


Mass: 9207.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7T3
#17: Protein 30S ribosomal protein S17 / / Small ribosomal subunit protein uS17


Mass: 9724.491 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0AG63
#18: Protein 30S ribosomal protein S18 / / Small ribosomal subunit protein bS18


Mass: 9005.472 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7T7
#19: Protein 30S ribosomal protein S19 / / Small ribosomal subunit protein uS19


Mass: 10455.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7U3
#20: Protein 30S ribosomal protein S20 / / Small ribosomal subunit protein bS20


Mass: 9708.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7U7

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RNA chain / Protein , 2 types, 2 molecules AX

#1: RNA chain 16S rRNA /


Mass: 499873.406 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria)
#21: Protein Ribosome maturation factor RimP


Mass: 16737.992 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (strain K12) (bacteria)
Gene: rimP, yhbC, b3170, JW5533 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A8A8

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Non-polymers , 2 types, 58 molecules

#22: Chemical...
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 57 / Source method: obtained synthetically / Formula: Mg
#23: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn

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Details

Has ligand of interestN

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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

Component
IDNameTypeEntity IDParent-IDSource
1Bacterial 30S ribosomal subunit assembly complex state C (Consensus refinement)COMPLEX#1-#210MULTIPLE SOURCES
2Bacterial 30S ribosomal assemblyCOMPLEX#1-#201NATURAL
3Ribosome maturation factor RimPCOMPLEX#211RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Escherichia coli (strain K12) (bacteria)83333
23Escherichia coli (strain K12) (bacteria)83333
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid type: Quantifoil R2/2
VitrificationInstrument: FEI VITROBOT MARK III / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

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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: SPOT SCAN
Electron lensMode: BRIGHT FIELDBright-field microscopy
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 46.1 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)
Image scansMovie frames/image: 19

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Processing

EM software
IDNameVersionCategory
10RELION3initial Euler assignment
11RELION3final Euler assignment
12RELION3classification
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.78 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 14097 / Symmetry type: POINT

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