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- EMDB-11913: Bacillus subtilis ribosome-associated quality control complex, st... -

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Basic information

Entry
Database: EMDB / ID: EMD-11913
TitleBacillus subtilis ribosome-associated quality control complex, state C, derived from RqcH affinity purification.
Map dataBacillus subtilis ribosome-associated quality control complex, state C. Filtered by local resolution.
Sample
  • Complex: 50S ribosomal subunit in complex with RqcH, A/P-tRNA, and E-tRNA.
Function / homology
Function and homology information


RQC complex / positive regulation of rRNA processing / nucleoid / ribosomal large subunit binding / rescue of stalled ribosome / rRNA processing / large ribosomal subunit / large ribosomal subunit rRNA binding / 5S rRNA binding / transferase activity ...RQC complex / positive regulation of rRNA processing / nucleoid / ribosomal large subunit binding / rescue of stalled ribosome / rRNA processing / large ribosomal subunit / large ribosomal subunit rRNA binding / 5S 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 / translation / ribonucleoprotein complex / 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 L11, conserved site / Ribosomal protein L11 signature. / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L10-like domain superfamily / Ribosomal protein L10P / Ribosomal protein L10 / Ribosomal protein L16 signature 1. / : / 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/L12 / Ribosomal protein L11, RNA binding domain / Ribosomal protein L28/L24 superfamily / Ribosomal protein L36 signature. / 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 L34, conserved site / Ribosomal protein L34 signature. / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 / Ribosomal L28 family / Ribosomal protein L33 / Ribosomal protein L33 / Ribosomal protein L28/L24 / Ribosomal protein L30, bacterial-type / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L33 superfamily / Ribosomal protein L16 / : / L28p-like / Ribosomal protein L20 / Ribosomal protein L20 / Ribosomal protein L20, C-terminal / Ribosomal protein L27 / Ribosomal L27 protein / Ribosomal protein L21 / 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 L34 / Ribosomal protein L34 / Ribosomal protein L13, bacterial-type / Ribosomal protein L3, bacterial/organelle-type / Ribosomal protein L15, bacterial-type / 50S ribosomal protein uL4
Similarity search - Domain/homology
Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL32 / Rqc2 homolog RqcH / 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 bL19 / Large ribosomal subunit protein bL32 / Rqc2 homolog RqcH / 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)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsCrowe-McAuliffe C / Wilson DN
Funding support Germany, Sweden, 5 items
OrganizationGrant numberCountry
German Research Foundation (DFG)WI3285/8-1 Germany
Swedish Research Council2017-03783 Sweden
German Research Foundation (DFG)SPP-1879 Germany
Swedish Research Council2018-00956 Sweden
Swedish Research Council2019-01085 Sweden
CitationJournal: Mol Cell / Year: 2021
Title: Structural Basis for Bacterial Ribosome-Associated Quality Control by RqcH and RqcP.
Authors: Caillan Crowe-McAuliffe / Hiraku Takada / Victoriia Murina / Christine Polte / Sergo Kasvandik / Tanel Tenson / Zoya Ignatova / Gemma C Atkinson / Daniel N Wilson / Vasili Hauryliuk /
Abstract: In all branches of life, stalled translation intermediates are recognized and processed by ribosome-associated quality control (RQC) pathways. RQC begins with the splitting of stalled ribosomes, ...In all branches of life, stalled translation intermediates are recognized and processed by ribosome-associated quality control (RQC) pathways. RQC begins with the splitting of stalled ribosomes, leaving an unfinished polypeptide still attached to the large subunit. Ancient and conserved NEMF family RQC proteins target these incomplete proteins for degradation by the addition of C-terminal "tails." How such tailing can occur without the regular suite of translational components is, however, unclear. Using single-particle cryo-electron microscopy (EM) of native complexes, we show that C-terminal tailing in Bacillus subtilis is mediated by NEMF protein RqcH in concert with RqcP, an Hsp15 family protein. Our structures reveal how these factors mediate tRNA movement across the ribosomal 50S subunit to synthesize polypeptides in the absence of mRNA or the small subunit.
History
DepositionOct 29, 2020-
Header (metadata) releaseDec 9, 2020-
Map releaseDec 9, 2020-
UpdateJan 20, 2021-
Current statusJan 20, 2021Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.005
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.005
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_11913.png

Downloads & links

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Map

FileDownload / File: emd_11913.map.gz / Format: CCP4 / Size: 282.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationBacillus subtilis ribosome-associated quality control complex, state C. Filtered by local resolution.
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.82 Å/pix.
x 420 pix.
= 344.4 Å		0.82 Å/pix.
x 420 pix.
= 344.4 Å		0.82 Å/pix.
x 420 pix.
= 344.4 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.82 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.005 / Movie #1: 0.005
Minimum - Maximum-0.012663451 - 0.0368317
Average (Standard dev.)-5.232634e-05 (±0.0024053755)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions420420420
Spacing420420420
CellA=B=C: 344.4 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.820.820.82
M x/y/z420420420
origin x/y/z0.0000.0000.000
length x/y/z344.400344.400344.400
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS420420420
D min/max/mean-0.0130.037-0.000

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Supplemental data

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Mask #1

Fileemd_11913_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: Bacillus subtilis ribosome-associated quality control complex, state C....

Fileemd_11913_additional_1.map
AnnotationBacillus subtilis ribosome-associated quality control complex, state C. Post-processed and sharpened with automatically estimated b-factor.
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram

Histogram (log scale)

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Additional map: Bacillus subtilis ribosome-associated quality control complex, state C....

Fileemd_11913_additional_2.map
AnnotationBacillus subtilis ribosome-associated quality control complex, state C. Output of RELION Refine3D job.
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Bacillus subtilis ribosome-associated quality control complex, state C....

Fileemd_11913_half_map_1.map
AnnotationBacillus subtilis ribosome-associated quality control complex, state C. Half map.
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Bacillus subtilis ribosome-associated quality control complex, state C....

Fileemd_11913_half_map_2.map
AnnotationBacillus subtilis ribosome-associated quality control complex, state C. Half map.
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : 50S ribosomal subunit in complex with RqcH, A/P-tRNA, and E-tRNA.

EntireName: 50S ribosomal subunit in complex with RqcH, A/P-tRNA, and E-tRNA.
Components
  • Complex: 50S ribosomal subunit in complex with RqcH, A/P-tRNA, and E-tRNA.

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Supramolecule #1: 50S ribosomal subunit in complex with RqcH, A/P-tRNA, and E-tRNA.

SupramoleculeName: 50S ribosomal subunit in complex with RqcH, A/P-tRNA, and E-tRNA.
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#33
Details: Generated by affinity purification of FLAG-tagged RqcH.
Source (natural)Organism: Bacillus subtilis subsp. subtilis str. 168 (bacteria)
Molecular weightTheoretical: 1.6 MDa

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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
GridModel: Quantifoil / Material: COPPER
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Digitization - Dimensions - Width: 3838 pixel / Digitization - Dimensions - Height: 3710 pixel / Digitization - Frames/image: 1-20 / Number grids imaged: 2 / Number real images: 7177 / Average exposure time: 4.0 sec. / Average electron dose: 29.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: -1.9 µm / Nominal defocus min: -0.7 µm / Nominal magnification: 165000
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionAlgorithm: BACK PROJECTION / Resolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION / Number images used: 39077
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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