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- PDB-7ope: RqcH DR variant bound to 50S-peptidyl-tRNA-RqcP RQC complex (rigi... -

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Basic information

Entry
Database: PDB / ID: 7ope
TitleRqcH DR variant bound to 50S-peptidyl-tRNA-RqcP RQC complex (rigid body refinement)
Components
  • (50S ribosomal protein ...) x 28
  • 23S rRNA
  • 5S rRNA
  • Rqc2 homolog RqcH
  • Uncharacterized protein YabO
  • tRNA-Ala-UGC
KeywordsRIBOSOME / RQC / ribosome-associated quality control / RqcP / RqcH / Peptidyl-tRNA / Large ribosomal subunit
Function / homology
Function and homology information


positive regulation of rRNA processing / nucleoid / ribosomal large subunit binding / rescue of stalled ribosome / rRNA processing / large ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / transferase activity / ribosomal large subunit assembly ...positive regulation of rRNA processing / nucleoid / ribosomal large subunit binding / rescue of stalled ribosome / rRNA processing / large ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / transferase activity / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / response to antibiotic / mRNA binding / DNA binding / RNA binding / cytoplasm
Similarity search - Function
RNA-binding protein, HP1423 type / Rqc2 homolog RqcH, bacterial / : / NFACT, RNA-binding domain / NFACT protein RNA binding domain / NFACT N-terminal and middle domains / Ribosomal protein L10, eubacterial, conserved site / Ribosomal protein L10 signature. / Ribosomal protein L10 / : ...RNA-binding protein, HP1423 type / Rqc2 homolog RqcH, bacterial / : / NFACT, RNA-binding domain / NFACT protein RNA binding domain / NFACT N-terminal and middle domains / Ribosomal protein L10, eubacterial, conserved site / Ribosomal protein L10 signature. / Ribosomal protein L10 / : / : / Ribosomal protein L11, bacterial-type / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L11, conserved site / Ribosomal protein L11 signature. / Ribosomal protein L10-like domain superfamily / Ribosomal protein L16 signature 1. / Ribosomal protein L10P / Ribosomal protein L10 / : / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / Ribosomal protein L16, conserved site / Ribosomal protein L16 signature 2. / Ribosomal protein L17 signature. / Ribosomal protein L11, N-terminal / Ribosomal protein L11, N-terminal domain / Ribosomal protein L11/L12 / Ribosomal protein L11, C-terminal / Ribosomal protein L11, C-terminal domain superfamily / Ribosomal protein L11/L12, N-terminal domain superfamily / Ribosomal protein L11, RNA binding domain / Ribosomal protein L11/L12 / Ribosomal protein L36 signature. / Ribosomal protein L28/L24 superfamily / Ribosomal protein L32p, bacterial type / : / : / Ribosomal protein L28 / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L5, bacterial-type / Ribosomal protein L18, bacterial-type / Ribosomal protein L6, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein L20 signature. / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein L14P, bacterial-type / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 / Ribosomal protein L34, conserved site / Ribosomal L28 family / Ribosomal protein L34 signature. / Ribosomal protein L33 / Ribosomal protein L33 / Ribosomal protein L28/L24 / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L33 superfamily / Ribosomal protein L30, bacterial-type / Ribosomal protein L16 / : / L28p-like / Ribosomal protein L20 / Ribosomal protein L20 / Ribosomal protein L20, C-terminal / Ribosomal protein L21 / Ribosomal protein L27 / Ribosomal L27 protein / Ribosomal protein L19 / Ribosomal protein L19 / Ribosomal protein L19 superfamily / Ribosomal proteins 50S L24/mitochondrial 39S L24 / Ribosomal protein L17 / Ribosomal protein L17 superfamily / Ribosomal protein L17 / Ribosomal protein L21-like / L21-like superfamily / Ribosomal prokaryotic L21 protein / Ribosomal L32p protein family / Ribosomal protein L32p / Ribosomal protein L24 / Ribosomal protein L13, bacterial-type / Ribosomal protein L3, bacterial/organelle-type / Ribosomal protein L15, bacterial-type / 50S ribosomal protein uL4 / Ribosomal protein L34 / Ribosomal protein L34
Similarity search - Domain/homology
: / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Rqc2 homolog RqcH / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL27 ...: / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Rqc2 homolog RqcH / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein bL17 / Large ribosomal subunit protein bL36 / Large ribosomal subunit protein bL21 / Uncharacterized protein YabO / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL10 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL33A / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL11
Similarity search - Component
Biological speciesBacillus subtilis subsp. subtilis str. 168 (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsCrowe-McAuliffe, C. / Wilson, D.N.
Funding support Sweden, Germany, Estonia, 7items
OrganizationGrant numberCountry
Swedish Research Council2017-03783 Sweden
Swedish Research Council2019-01085 Sweden
German Research Foundation (DFG)WI3285/8-1 Germany
European Regional Development Fund2014-2020.4.01.15-0013 Sweden
H2020 Marie Curie Actions of the European Commission764591 Sweden
Estonian Research CouncilPRG335 Estonia
Swedish Research Council2018-00956 Sweden
CitationJournal: Nucleic Acids Res / Year: 2021
Title: RqcH and RqcP catalyze processive poly-alanine synthesis in a reconstituted ribosome-associated quality control system.
Authors: Hiraku Takada / Caillan Crowe-McAuliffe / Christine Polte / Zhanna Yu Sidorova / Victoriia Murina / Gemma C Atkinson / Andrey L Konevega / Zoya Ignatova / Daniel N Wilson / Vasili Hauryliuk /
Abstract: In the cell, stalled ribosomes are rescued through ribosome-associated protein quality-control (RQC) pathways. After splitting of the stalled ribosome, a C-terminal polyalanine 'tail' is added to the ...In the cell, stalled ribosomes are rescued through ribosome-associated protein quality-control (RQC) pathways. After splitting of the stalled ribosome, a C-terminal polyalanine 'tail' is added to the unfinished polypeptide attached to the tRNA on the 50S ribosomal subunit. In Bacillus subtilis, polyalanine tailing is catalyzed by the NEMF family protein RqcH, in cooperation with RqcP. However, the mechanistic details of this process remain unclear. Here we demonstrate that RqcH is responsible for tRNAAla selection during RQC elongation, whereas RqcP lacks any tRNA specificity. The ribosomal protein uL11 is crucial for RqcH, but not RqcP, recruitment to the 50S subunit, and B. subtilis lacking uL11 are RQC-deficient. Through mutational mapping, we identify critical residues within RqcH and RqcP that are important for interaction with the P-site tRNA and/or the 50S subunit. Additionally, we have reconstituted polyalanine-tailing in vitro and can demonstrate that RqcH and RqcP are necessary and sufficient for processivity in a minimal system. Moreover, the in vitro reconstituted system recapitulates our in vivo findings by reproducing the importance of conserved residues of RqcH and RqcP for functionality. Collectively, our findings provide mechanistic insight into the role of RqcH and RqcP in the bacterial RQC pathway.
History
DepositionMay 31, 2021Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 21, 2021Provider: repository / Type: Initial release
Revision 1.1Sep 22, 2021Group: Data collection / Database references
Category: citation / citation_author ...citation / citation_author / database_2 / database_PDB_rev / database_PDB_rev_record / em_admin / pdbx_database_proc
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update

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Structure visualization

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Assembly

Deposited unit
A: 23S rRNA
B: 5S rRNA
E: 50S ribosomal protein L2
F: 50S ribosomal protein L3
G: 50S ribosomal protein L4
H: 50S ribosomal protein L5
I: 50S ribosomal protein L6
K: 50S ribosomal protein L11
L: 50S ribosomal protein L10
N: 50S ribosomal protein L13
O: 50S ribosomal protein L14
P: 50S ribosomal protein L15
Q: 50S ribosomal protein L16
R: 50S ribosomal protein L17
S: 50S ribosomal protein L18
T: 50S ribosomal protein L19
U: 50S ribosomal protein L20
V: 50S ribosomal protein L21
W: 50S ribosomal protein L22
X: 50S ribosomal protein L23
Y: 50S ribosomal protein L24
2: tRNA-Ala-UGC
a: 50S ribosomal protein L27
b: 50S ribosomal protein L28
c: 50S ribosomal protein L29
d: 50S ribosomal protein L30
f: 50S ribosomal protein L32
g: 50S ribosomal protein L33 1
h: 50S ribosomal protein L34
i: 50S ribosomal protein L35
j: 50S ribosomal protein L36
1: Uncharacterized protein YabO
0: Rqc2 homolog RqcH


Theoretical massNumber of molelcules
Total (without water)1,460,82433
Polymers1,460,82433
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: Assignment of this complex is supported by SDS-PAGE and sucrose density gradient sedimentation.
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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RNA chain , 3 types, 3 molecules AB2

#1: RNA chain 23S rRNA


Mass: 949010.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: GenBank: CP053102.1
#2: RNA chain 5S rRNA


Mass: 38423.863 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: GenBank: CP053102.1
#22: RNA chain tRNA-Ala-UGC


Mass: 24491.547 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)

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50S ribosomal protein ... , 28 types, 28 molecules EFGHIKLNOPQRSTUVWXYabcdfghij

#3: Protein 50S ribosomal protein L2 / BL2


Mass: 30335.125 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P42919
#4: Protein 50S ribosomal protein L3 / BL3


Mass: 22723.348 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P42920
#5: Protein 50S ribosomal protein L4


Mass: 22424.951 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P42921
#6: Protein 50S ribosomal protein L5 / BL6


Mass: 20177.564 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P12877
#7: Protein 50S ribosomal protein L6 / BL10


Mass: 19543.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P46898
#8: Protein 50S ribosomal protein L11 / BL11


Mass: 14951.442 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: Q06796
#9: Protein 50S ribosomal protein L10 / BL5 / Cold acclimatization protein / CAP / Vegetative protein 300 / VEG300


Mass: 18101.748 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P42923
#10: Protein 50S ribosomal protein L13


Mass: 16407.104 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P70974
#11: Protein 50S ribosomal protein L14


Mass: 13175.288 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P12875
#12: Protein 50S ribosomal protein L15


Mass: 15410.694 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P19946
#13: Protein 50S ribosomal protein L16


Mass: 16223.049 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P14577
#14: Protein 50S ribosomal protein L17 / BL15 / BL21


Mass: 13774.806 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P20277
#15: Protein 50S ribosomal protein L18 / BL16


Mass: 12993.829 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P46899
#16: Protein 50S ribosomal protein L19


Mass: 13416.853 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: O31742
#17: Protein 50S ribosomal protein L20


Mass: 13669.189 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P55873
#18: Protein 50S ribosomal protein L21 / BL20


Mass: 11296.081 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P26908
#19: Protein 50S ribosomal protein L22


Mass: 12481.608 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P42060
#20: Protein 50S ribosomal protein L23


Mass: 10978.813 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P42924
#21: Protein 50S ribosomal protein L24 / 12 kDa DNA-binding protein / BL23 / HPB12


Mass: 11166.120 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P0CI78
#23: Protein 50S ribosomal protein L27 / BL24 / BL30


Mass: 10391.855 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P05657
#24: Protein 50S ribosomal protein L28


Mass: 6826.144 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P37807
#25: Protein 50S ribosomal protein L29


Mass: 7728.029 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P12873
#26: Protein 50S ribosomal protein L30 / BL27


Mass: 6650.795 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P19947
#27: Protein 50S ribosomal protein L32


Mass: 6745.073 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: O34687
#28: Protein/peptide 50S ribosomal protein L33 1


Mass: 5915.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P56849
#29: Protein/peptide 50S ribosomal protein L34


Mass: 5271.332 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P05647
#30: Protein 50S ribosomal protein L35


Mass: 7581.128 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P55874
#31: Protein/peptide 50S ribosomal protein L36 / BL38 / Ribosomal protein B / Ribosomal protein II


Mass: 4318.422 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P20278

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Protein , 2 types, 2 molecules 10

#32: Protein Uncharacterized protein YabO


Mass: 9737.266 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: P37557
#33: Protein Rqc2 homolog RqcH / RqcH


Mass: 68480.625 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus subtilis subsp. subtilis str. 168 (bacteria)
Gene: rqcH, HIR78_08560
Production host: Bacillus subtilis subsp. subtilis str. 168 (bacteria)
References: UniProt: A0A6M4JI41

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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: RQC complex consisting of 50S large ribosomal subunit, peptidyl-tRNA, RqcP, and DR-variant RqcH
Type: RIBOSOME
Details: Generated by immunoprecipitation of RqcH DR variant.
Entity ID: all / Source: MULTIPLE SOURCES
Molecular weightExperimental value: NO
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/1
VitrificationInstrument: FEI VITROBOT MARK III / Cryogen name: ETHANE / Humidity: 100 %

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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 recordingAverage exposure time: 3 sec. / Electron dose: 34.8 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 2510
Image scansWidth: 3838 / Height: 3710 / Movie frames/image: 30 / Used frames/image: 1-30

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Processing

EM software
IDNameVersionCategory
4CTFFINDCTF correction
10RELION3.1initial Euler assignment
11RELION3.1final Euler assignment
12RELION3.1classification
13RELION3.13D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 145631
3D reconstructionResolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 16700 / Symmetry type: POINT

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