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- EMDB-17250: CRYO-EM FOCUSED REFINEMENT MAPS OF TRYPANOSOMA BRUCEI PROCYCLIC F... -

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Basic information

Entry
Database: EMDB / ID: EMD-17250
TitleCRYO-EM FOCUSED REFINEMENT MAPS OF TRYPANOSOMA BRUCEI PROCYCLIC FORM 80S RIBOSOME : PARENTAL STRAIN
Map dataBody1_for_focused_refinement
Sample
  • Complex: 80S ribosomeEukaryotic ribosome
KeywordsCRYO-EM / TRYPANOSOMA BRUCEI / 80S RIBOSOME / RIBOSOME
Function / homology
Function and homology information


organellar small ribosomal subunit / organellar large ribosomal subunit / ciliary transition zone / nuclear lumen / mitochondrial large ribosomal subunit / ciliary plasm / post-transcriptional regulation of gene expression / phosphate ion binding / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / protein-RNA complex assembly ...organellar small ribosomal subunit / organellar large ribosomal subunit / ciliary transition zone / nuclear lumen / mitochondrial large ribosomal subunit / ciliary plasm / post-transcriptional regulation of gene expression / phosphate ion binding / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / protein-RNA complex assembly / 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) / translation regulator activity / RNA processing / 90S preribosome / rescue of stalled ribosome / ribosome assembly / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / ribosomal large subunit biogenesis / maturation of SSU-rRNA / regulation of cytokinesis / positive regulation of apoptotic signaling pathway / regulation of cell growth / small-subunit processome / protein kinase C binding / modification-dependent protein catabolic process / ribosomal small subunit biogenesis / protein tag activity / rRNA processing / ribosomal small subunit assembly / small ribosomal subunit rRNA binding / ribosome biogenesis / ribosome binding / regulation of cell population proliferation / large ribosomal subunit rRNA binding / 5S rRNA binding / small ribosomal subunit / cytosolic small ribosomal subunit / cytoplasmic translation / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / translation / positive regulation of protein phosphorylation / mRNA binding / apoptotic process / ubiquitin protein ligase binding / nucleolus / RNA binding / nucleoplasm / metal ion binding / nucleus / cytosol / cytoplasm
Similarity search - Function
Ribosomal protein L23 / Ribosomal protein L28e / : / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / Ribosomal protein L29e / Ribosomal protein S26e signature. ...Ribosomal protein L23 / Ribosomal protein L28e / : / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / Ribosomal protein L29e / Ribosomal protein S26e signature. / Ribosomal protein S2, eukaryotic / Ribosomal L29e protein family / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / : / Ribosomal protein S12e signature. / Ribosomal protein S2, eukaryotic/archaeal / Ribosomal protein S12e / Ribosomal protein S19e / Ribosomal_S19e / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein S8e, conserved site / 40S ribosomal protein S4, C-terminal domain / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S19e / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / 40S Ribosomal protein S10 / 40S ribosomal protein S4 C-terminus / Ribosomal protein S4e, N-terminal / Ribosomal protein L30e, conserved site / Ribosomal protein S23, eukaryotic/archaeal / S27a-like superfamily / Plectin/S10, N-terminal / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / Plectin/S10 domain / Ribosomal protein S8e / Ribosomal protein S4, KOW domain / Ribosomal protein S4e / Ribosomal protein S4e, central region / Ribosomal protein S4e, central domain superfamily / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / Ribosomal Protein L6, KOW domain / Ribosomal protein L30/YlxQ / Ribosomal protein S25 / S25 ribosomal protein / RS4NT (NUC023) domain / Ribosomal protein L13e / Ribosomal protein L13e / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein L14e domain / 60S ribosomal protein L6E / Ribosomal protein S30 / Ribosomal protein S30 / Ribosomal protein L34Ae / Ribosomal protein L44e signature. / Ribosomal family S4e / Ribosomal protein L10e, conserved site / Ribosomal protein L10e signature. / Ribosomal protein S3, eukaryotic/archaeal / Ribosomal protein L10e / Ribosomal protein L19, eukaryotic / Ribosomal protein L7A/L8 / Ribosomal protein L34e / 60S ribosomal protein L4, C-terminal domain / Ribosomal protein L7, eukaryotic / Ribosomal protein L6e / Ribosomal protein L14 / Ribosomal protein L30, N-terminal / Ribosomal protein L14, KOW motif / 60S ribosomal protein L18a/ L20, eukaryotes / Ribosomal L30 N-terminal domain / Ribosomal protein L14 / Ribosomal protein S19A/S15e / Ribosomal protein S8e signature. / Ribosomal protein L44e / Ribosomal protein L44 / Ribosomal protein L5 eukaryotic, C-terminal / Ribosomal L18 C-terminal region / 60S ribosomal protein L4 C-terminal domain / Ribosomal protein S17e / Ribosomal protein S17e-like superfamily / Ribosomal S17 / 50S ribosomal protein L18Ae/60S ribosomal protein L20 and L18a / Ribosomal L40e family / Ribosomal protein L30e signature 1. / Ribosomal protein 50S-L18Ae/60S-L20/60S-L18A / Ribosomal proteins 50S-L18Ae/60S-L20/60S-L18A / Ribosomal protein S6, eukaryotic / Ribosomal_L40e / Ribosomal protein L40e / 40S ribosomal protein S1/3, eukaryotes / Ribosomal protein L40e superfamily
Similarity search - Domain/homology
Large ribosomal subunit protein eL42 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS11 / Ubiquitin-ribosomal protein eL40 fusion protein / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein eL18 / Small ribosomal subunit protein RACK1 / Small ribosomal subunit protein eS12 / 60S ribosomal protein L27, putative ...Large ribosomal subunit protein eL42 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS11 / Ubiquitin-ribosomal protein eL40 fusion protein / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein eL18 / Small ribosomal subunit protein RACK1 / Small ribosomal subunit protein eS12 / 60S ribosomal protein L27, putative / 60S ribosomal protein L18a / RNA-binding protein / 40S ribosomal protein S17, putative / 40S ribosomal protein L14, putative / Small ribosomal subunit protein uS2 / Large ribosomal subunit protein eL22 / 60S ribosomal protein L29 / Large ribosomal subunit protein eL34 / 40S ribosomal protein S27, putative / 40S ribosomal protein S26 / 40S ribosomal protein S21, putative / 40S ribosomal protein S5, putative / Large ribosomal subunit protein eL28 / 60S ribosomal protein L17, putative / 40S ribosomal protein S4 / Ribosomal protein L37 / 40S ribosomal protein S2, putative / 60S ribosomal protein L6, putative / 40S ribosomal protein S24 / 60S ribosomal protein L37a, putative / 60S ribosomal protein L24, putative / 40S ribosomal protein S10, putative / 40S ribosomal protein S18, putative / Small ribosomal subunit protein eS1 / 60S ribosomal protein L9, putative / 40S ribosomal protein S23, putative / 40S ribosomal proteins S11, putative / 60S ribosomal protein L32, putative / 40S ribosomal protein S6 / Ribosomal protein L36, putative / Ribosomal protein L15 / 60S ribosomal protein L5, putative / 60S ribosomal protein L26, putative / 60S ribosomal subunit protein L31, putative / 60S ribosomal protein L27a / 60S ribosomal protein L23, putative / 60S ribosomal protein L10, putative / 60S ribosomal protein L11, putative / 40S ribosomal protein S3 / 40S ribosomal protein S7 / 60S ribosomal protein L38, putative / 60S ribosomal protein L35, putative / 60S ribosomal protein L21E, putative / 40S ribosomal protein S33, putative / 60S ribosomal protein L39, putative / 60S ribosomal protein L7, putative / 60S ribosomal protein L13 / 60S ribosomal protein L7a / 40S ribosomal protein S16, putative / 60S ribosomal protein L2, putative / Ubiquitin-ribosomal protein eL40 fusion protein / 40S ribosomal protein S15, putative / 40S ribosomal protein S25 / 40S ribosomal protein S8 / 60S ribosomal protein L19, putative / 40S ribosomal protein S15a, putative / Ribosomal protein L3, mitochondrial, putative / 60S ribosomal protein L4 / Ribosomal protein S19, putative / 60S ribosomal protein L35A, putative / 40S ribosomal protein S30 / 60S ribosomal protein L13a, putative / 40S ribosomal protein S13, putative
Similarity search - Component
Biological speciesTrypanosoma brucei brucei (eukaryote)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.47 Å
AuthorsRajan KS / Yonath A
Funding supportEuropean Union, 1 items
OrganizationGrant numberCountry
European Research Council (ERC)European Union
CitationJournal: Nat Commun / Year: 2023
Title: A single pseudouridine on rRNA regulates ribosome structure and function in the mammalian parasite Trypanosoma brucei.
Authors: K Shanmugha Rajan / Hava Madmoni / Anat Bashan / Masato Taoka / Saurav Aryal / Yuko Nobe / Tirza Doniger / Beathrice Galili Kostin / Amit Blumberg / Smadar Cohen-Chalamish / Schraga Schwartz ...Authors: K Shanmugha Rajan / Hava Madmoni / Anat Bashan / Masato Taoka / Saurav Aryal / Yuko Nobe / Tirza Doniger / Beathrice Galili Kostin / Amit Blumberg / Smadar Cohen-Chalamish / Schraga Schwartz / Andre Rivalta / Ella Zimmerman / Ron Unger / Toshiaki Isobe / Ada Yonath / Shulamit Michaeli /
Abstract: Trypanosomes are protozoan parasites that cycle between insect and mammalian hosts and are the causative agent of sleeping sickness. Here, we describe the changes of pseudouridine (Ψ) modification ...Trypanosomes are protozoan parasites that cycle between insect and mammalian hosts and are the causative agent of sleeping sickness. Here, we describe the changes of pseudouridine (Ψ) modification on rRNA in the two life stages of the parasite using four different genome-wide approaches. CRISPR-Cas9 knock-outs of all four snoRNAs guiding Ψ on helix 69 (H69) of the large rRNA subunit were lethal. A single knock-out of a snoRNA guiding Ψ530 on H69 altered the composition of the 80S monosome. These changes specifically affected the translation of only a subset of proteins. This study correlates a single site Ψ modification with changes in ribosomal protein stoichiometry, supported by a high-resolution cryo-EM structure. We propose that alteration in rRNA modifications could generate ribosomes preferentially translating state-beneficial proteins.
History
DepositionApr 28, 2023-
Header (metadata) releaseNov 29, 2023-
Map releaseNov 29, 2023-
UpdateNov 29, 2023-
Current statusNov 29, 2023Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_17250.png

Downloads & links

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Map

FileDownload / File: emd_17250.map.gz / Format: CCP4 / Size: 421.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationBody1_for_focused_refinement
Voxel sizeX=Y=Z: 0.85 Å
Density
Contour LevelBy AUTHOR: 0.01
Minimum - Maximum-0.023716325 - 0.090278275
Average (Standard dev.)-0.00014113501 (±0.0030942236)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions480480480
Spacing480480480
CellA=B=C: 408.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: Body2 for focused refinement

Fileemd_17250_additional_1.map
AnnotationBody2_for_focused_refinement
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: Body3 for focused refinement

Fileemd_17250_additional_2.map
AnnotationBody3_for_focused_refinement
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map1 for Body1 of focused refinement

Fileemd_17250_half_map_1.map
AnnotationHalf_map1_for_Body1_of_focused_refinement
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map2 for Body1 of focused refinement

Fileemd_17250_half_map_2.map
AnnotationHalf_map2_for_Body1_of_focused_refinement
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : 80S ribosome

EntireName: 80S ribosomeEukaryotic ribosome
Components
  • Complex: 80S ribosomeEukaryotic ribosome

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Supramolecule #1: 80S ribosome

SupramoleculeName: 80S ribosome / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#86
Source (natural)Organism: Trypanosoma brucei brucei (eukaryote)

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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: 7.6
GridModel: Quantifoil R2/2 / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.5 µm
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 1.16 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: EMDB MAP
EMDB ID:

15124

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.47 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 459985

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Atomic model buiding 1

Initial model
PDB IDChain

4v8m

source_name: PDB, initial_model_type: experimental model

8a3w

source_name: PDB, initial_model_type: experimental model
Output model

PDB-8ova:
CRYO-EM STRUCTURE OF TRYPANOSOMA BRUCEI PROCYCLIC FORM 80S RIBOSOME : PARENTAL STRAIN

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