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- EMDB-30175: Cryo-EM structure of pre-60S ribosome from Saccharomyces cerevisi... -

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Entry
Database: EMDB / ID: EMD-30175
TitleCryo-EM structure of pre-60S ribosome from Saccharomyces cerevisiae nog1delta595-647rei1341-393reh1delta380-430 strain at 3.77 Angstroms resolution(state N3)
Map dataCryo-EM structure of pre-60S ribosome from Saccharomyces cerevisiae nog1%u2206C rei1%u2206C reh1%u2206C strain at 3.77 Angstroms resolution(state N3)
Sample
  • Complex: Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisiae nog1delta595-647rei1341-393reh1delta380-430 strain
Function / homology
Function and homology information


protein-RNA complex remodeling / regulation of ribosomal subunit export from nucleus / 7S RNA binding / positive regulation of ATP-dependent activity / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / pre-mRNA 5'-splice site binding / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of 5.8S rRNA / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit ...protein-RNA complex remodeling / regulation of ribosomal subunit export from nucleus / 7S RNA binding / positive regulation of ATP-dependent activity / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / pre-mRNA 5'-splice site binding / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of 5.8S rRNA / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / ribosomal large subunit binding / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of a pool of free 40S subunits / negative regulation of mRNA splicing, via spliceosome / preribosome, large subunit precursor / nuclear-transcribed mRNA catabolic process / ATPase activator activity / L13a-mediated translational silencing of Ceruloplasmin expression / translational elongation / ribosomal large subunit export from nucleus / regulation of translational fidelity / protein-RNA complex assembly / ribosomal subunit export from nucleus / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / translation initiation factor activity / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / nuclear periphery / assembly of large subunit precursor of preribosome / ribosomal large subunit biogenesis / maturation of SSU-rRNA / cytosolic ribosome assembly / small-subunit processome / macroautophagy / maintenance of translational fidelity / rRNA processing / ribosome biogenesis / ATPase binding / large ribosomal subunit rRNA binding / 5S rRNA binding / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / GTPase activity / mRNA binding / nucleolus / GTP binding / RNA binding / nucleoplasm / nucleus / metal ion binding / cytosol / cytoplasm
Similarity search - Function
Ribosome biogenesis protein Rpf2 / Ribosomal biogenesis regulatory protein / Ribosome biogenesis regulatory protein (RRS1) / Nucleolar GTP-binding protein 2, N-terminal domain / Nucleolar GTP-binding protein 2 / NGP1NT (NUC091) domain / Domain of unknown function DUF2423 / YBL028C ribosome biogenesis factor, N-terminal domain / NLE / NLE (NUC135) domain ...Ribosome biogenesis protein Rpf2 / Ribosomal biogenesis regulatory protein / Ribosome biogenesis regulatory protein (RRS1) / Nucleolar GTP-binding protein 2, N-terminal domain / Nucleolar GTP-binding protein 2 / NGP1NT (NUC091) domain / Domain of unknown function DUF2423 / YBL028C ribosome biogenesis factor, N-terminal domain / NLE / NLE (NUC135) domain / : / GTP-binding protein, orthogonal bundle domain superfamily / Ribosomal biogenesis NSA2 family / Ribosome assembly factor Mrt4 / : / NOG, C-terminal / Nucleolar GTP-binding protein 1 / NOGCT (NUC087) domain / Nucleolar GTP-binding protein 1, Rossman-fold domain / NOG1, N-terminal helical domain / Nucleolar GTP-binding protein 1 (NOG1) / NOG1 N-terminal helical domain / Brix domain / Brix domain / Brix domain profile. / Brix / Circularly permuted (CP)-type guanine nucleotide-binding (G) domain / Circularly permuted (CP)-type guanine nucleotide-binding (G) domain profile. / OBG-type guanine nucleotide-binding (G) domain / OBG-type guanine nucleotide-binding (G) domain profile. / Translation initiation factor IF6 / eIF-6 family / translation initiation factor 6 / 50S ribosome-binding GTPase / GTP binding domain / 50S ribosomal protein L10, insertion domain superfamily / : / 60S ribosomal protein L10P, insertion domain / Insertion domain in 60S ribosomal protein L10P / metallochaperone-like domain / TRASH domain / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / Ribosomal protein L27e, conserved site / Ribosomal protein L27e signature. / Ribosomal protein L19, eukaryotic / Ribosomal protein L13e / Ribosomal protein L13e / 60S ribosomal protein L18a/ L20, eukaryotes / Ribosomal protein L19/L19e conserved site / Ribosomal protein L19e signature. / Ribosomal protein L5 eukaryotic, C-terminal / Ribosomal L18 C-terminal region / : / Ribosomal protein L34e, conserved site / Ribosomal protein L34e signature. / Ribosomal protein L30e signature 1. / Ribosomal protein L6e signature. / 50S ribosomal protein L18Ae/60S ribosomal protein L20 and L18a / Ribosomal protein 50S-L18Ae/60S-L20/60S-L18A / Ribosomal proteins 50S-L18Ae/60S-L20/60S-L18A / Ribosomal protein L23/L25, N-terminal / Ribosomal protein L23, N-terminal domain / Eukaryotic Ribosomal Protein L27, KOW domain / Ribosomal protein 60S L18 and 50S L18e / Ribosomal protein L30e signature 2. / Ribosomal protein L27e / Ribosomal protein L27e superfamily / Ribosomal L27e protein family / Ribosomal protein L30e, conserved site / Ribosomal protein L36e signature. / Ribosomal protein L18/L18-A/B/e, conserved site / Ribosomal protein L18e signature. / Ribosomal protein L35Ae, conserved site / Ribosomal protein L35Ae signature. / Ribosomal protein L34Ae / Ribosomal protein L34e / 60S ribosomal protein L19 / Ribosomal Protein L6, KOW domain / Ribosomal protein L30/YlxQ / Ribosomal protein L7A/L8 / 60S ribosomal protein L35 / Ribosomal protein L13, eukaryotic/archaeal / Ribosomal protein L6e / 60S ribosomal protein L6E / Ribosomal protein L18e / 60S ribosomal protein L4, C-terminal domain / 60S ribosomal protein L4 C-terminal domain / Ribosomal protein L7, eukaryotic / Ribosomal protein L30, N-terminal / Ribosomal L30 N-terminal domain / Ribosomal protein L37ae / Ribosomal L37ae protein family / Ribosomal protein L36e
Similarity search - Domain/homology
Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein uL30A / Large ribosomal subunit protein uL6A / Large ribosomal subunit protein uL22A / Large ribosomal subunit protein uL24A / Large ribosomal subunit protein eL33A / Large ribosomal subunit protein eL36A / Large ribosomal subunit protein eL15A / Large ribosomal subunit protein eL22A ...Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein uL30A / Large ribosomal subunit protein uL6A / Large ribosomal subunit protein uL22A / Large ribosomal subunit protein uL24A / Large ribosomal subunit protein eL33A / Large ribosomal subunit protein eL36A / Large ribosomal subunit protein eL15A / Large ribosomal subunit protein eL22A / Large ribosomal subunit protein uL5A / Large ribosomal subunit protein eL27A / Large ribosomal subunit protein eL31A / Large ribosomal subunit protein eL20A / Large ribosomal subunit protein eL43A / Large ribosomal subunit protein uL14A / Large ribosomal subunit protein uL2A / Large ribosomal subunit protein eL18A / Large ribosomal subunit protein eL19A / Large ribosomal subunit protein uL29A / Large ribosomal subunit protein uL4A / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein eL8A / Ribosome assembly protein 4 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL13A / Ribosome assembly factor MRT4 / Large ribosomal subunit protein eL14A / Ribosome biogenesis protein RPF2 / Large ribosomal subunit protein eL32 / UPF0642 protein YBL028C / Ribosome biogenesis protein NSA2 / Large ribosomal subunit protein eL37A / Large ribosomal subunit protein eL38 / Nucleolar GTP-binding protein 2 / Large ribosomal subunit protein eL34A / Large ribosomal subunit protein eL6A / Large ribosomal subunit protein eL21A / Nucleolar GTP-binding protein 1 / Ribosome biogenesis protein RLP24 / Regulator of ribosome biosynthesis / Eukaryotic translation initiation factor 6 / Large ribosomal subunit protein eL13A
Similarity search - Component
Biological speciesSaccharomyces cerevisiae S288C (yeast)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.77 Å
AuthorsLi Y / Wilson DM
Funding support China, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM028301 China
National Natural Science Foundation of China (NSFC)31725007; 31630087 China
CitationJournal: Nat Commun / Year: 2020
Title: Structural insights into assembly of the ribosomal nascent polypeptide exit tunnel.
Authors: Daniel M Wilson / Yu Li / Amber LaPeruta / Michael Gamalinda / Ning Gao / John L Woolford /
Abstract: The nascent polypeptide exit tunnel (NPET) is a major functional center of 60S ribosomal subunits. However, little is known about how the NPET is constructed during ribosome assembly. We utilized ...The nascent polypeptide exit tunnel (NPET) is a major functional center of 60S ribosomal subunits. However, little is known about how the NPET is constructed during ribosome assembly. We utilized molecular genetics, biochemistry, and cryo-electron microscopy (cryo-EM) to investigate the functions of two NPET-associated proteins, ribosomal protein uL4 and assembly factor Nog1, in NPET assembly. Structures of mutant pre-ribosomes lacking the tunnel domain of uL4 reveal a misassembled NPET, including an aberrantly flexible ribosomal RNA helix 74, resulting in at least three different blocks in 60S assembly. Structures of pre-ribosomes lacking the C-terminal extension of Nog1 demonstrate that this extension scaffolds the tunnel domain of uL4 in the NPET to help maintain stability in the core of pre-60S subunits. Our data reveal that uL4 and Nog1 work together in the maturation of ribosomal RNA helix 74, which is required to ensure proper construction of the NPET and 60S ribosomal subunits.
History
DepositionApr 1, 2020-
Header (metadata) releaseOct 21, 2020-
Map releaseOct 21, 2020-
UpdateOct 28, 2020-
Current statusOct 28, 2020Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.01
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.01
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_30175.png

Downloads & links

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Map

FileDownload / File: emd_30175.map.gz / Format: CCP4 / Size: 209.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationCryo-EM structure of pre-60S ribosome from Saccharomyces cerevisiae nog1%u2206C rei1%u2206C reh1%u2206C strain at 3.77 Angstroms resolution(state N3)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.05 Å/pix.
x 380 pix.
= 399.76 Å		1.05 Å/pix.
x 380 pix.
= 399.76 Å		1.05 Å/pix.
x 380 pix.
= 399.76 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.052 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.01 / Movie #1: 0.01
Minimum - Maximum-0.012692953 - 0.043645196
Average (Standard dev.)0.0006455608 (±0.002746617)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions380380380
Spacing380380380
CellA=B=C: 399.76 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0521.0521.052
M x/y/z380380380
origin x/y/z0.0000.0000.000
length x/y/z399.760399.760399.760
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS380380380
D min/max/mean-0.0130.0440.001

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Supplemental data

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Sample components

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Entire : Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisi...

EntireName: Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisiae nog1delta595-647rei1341-393reh1delta380-430 strain
Components
  • Complex: Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisiae nog1delta595-647rei1341-393reh1delta380-430 strain

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Supramolecule #1: Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisi...

SupramoleculeName: Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisiae nog1delta595-647rei1341-393reh1delta380-430 strain
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#47
Source (natural)Organism: Saccharomyces cerevisiae S288C (yeast)

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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
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 1.9 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.77 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 23008
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION

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