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- EMDB-17255: CRYO-EM FOCUSED REFINEMENT OF TRYPANOSOMA BRUCEI PROCYCLIC FORM 8... -

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Basic information

Entry
Database: EMDB / ID: EMD-17255
TitleCRYO-EM FOCUSED REFINEMENT OF TRYPANOSOMA BRUCEI PROCYCLIC FORM 80S RIBOSOME : TB11CS6H1 snoRNA mutant
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 / 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 / translation regulator activity ...organellar small ribosomal subunit / organellar large ribosomal subunit / ciliary transition zone / nuclear lumen / mitochondrial large ribosomal subunit / ciliary plasm / 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 / translation regulator activity / 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) / RNA processing / maturation of SSU-rRNA / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / ribosomal large subunit biogenesis / ribosome assembly / small-subunit processome / regulation of cytokinesis / regulation of cell growth / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / ribosomal small subunit assembly / rRNA processing / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / ribosome binding / large ribosomal subunit / ribosome biogenesis / small ribosomal subunit / cytoplasmic translation / regulation of cell population proliferation / 5S rRNA binding / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / apoptotic process / nucleolus / RNA binding / nucleoplasm / metal ion binding / nucleus / cytosol / cytoplasm
Similarity search - Function
Ribosomal protein L28e / Ribosomal protein L23 / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / : / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein L29e / Ribosomal protein S26e ...Ribosomal protein L28e / Ribosomal protein L23 / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / : / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein L29e / Ribosomal protein S26e / Ribosomal protein S25 / Ribosomal protein S26e signature. / Ribosomal protein S2, eukaryotic / Ribosomal protein S30 / Ribosomal L29e protein family / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / Ribosomal protein S3, eukaryotic/archaeal / Ribosomal protein L10e, conserved site / Ribosomal protein L10e / S25 ribosomal protein / Ribosomal protein S19A/S15e / Ribosomal protein S30 / Ribosomal protein S17e / Ribosomal protein S17e-like superfamily / Ribosomal protein S2, eukaryotic/archaeal / Ribosomal protein S19e / Ribosomal_S19e / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein S8e, conserved site / 40S ribosomal protein S11, N-terminal / 40S ribosomal protein S1/3, eukaryotes / Ribosomal protein S6, eukaryotic / Ribosomal protein S7e / 40S ribosomal protein S4, C-terminal domain / Eukaryotic Ribosomal Protein L27, KOW domain / Ribosomal protein L44e / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal protein L27e / Ribosomal protein L27e superfamily / Ribosomal S17 / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L38e protein family / Ribosomal protein S19e / Ribosomal protein S27, zinc-binding domain superfamily / Ribosomal L22e protein family / 40S Ribosomal protein S10 / 60S ribosomal protein L35 / Ribosomal protein S17, archaeal/eukaryotic / Ribosomal protein S27 / Ribosomal protein S28e conserved site / Ribosomal protein S6/S6e/A/B/2, conserved site / Ribosomal protein L30e, conserved site / Ribosomal protein S28e / 40S ribosomal protein S4 C-terminus / Ribosomal protein S4e, N-terminal / Ribosomal protein S23, eukaryotic/archaeal / Ribosomal protein L44 / Ribosomal_S17 N-terminal / Ribosomal protein L34Ae / Ribosomal protein S3Ae / Plectin/S10, N-terminal / Ribosomal S3Ae family / Ribosomal protein S7e / Ribosomal L27e protein family / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / Plectin/S10 domain / Ribosomal protein S8e / Ribosomal protein S4, KOW domain / Ribosomal Protein L6, KOW domain / Ribosomal protein S5/S7, eukaryotic/archaeal / Ribosomal protein S4e / Ribosomal protein S4e, central region / Ribosomal protein S4e, central domain superfamily / Ribosomal protein L30/YlxQ / Ribosomal protein S6e / Ribosomal protein S13/S15, N-terminal / Ribosomal protein S15P / Ribosomal S13/S15 N-terminal domain / Ribosomal protein S6e / Ribosomal protein S4/S9, eukaryotic/archaeal / Ribosomal protein L34e / Ribosomal protein L13e / Ribosomal protein L13e / Ribosomal protein L37ae / RS4NT (NUC023) domain / Ribosomal protein L14e domain / Ribosomal protein L19, eukaryotic / 60S ribosomal protein L6E / Ribosomal protein S27 / Ribosomal L40e family / Ribosomal S3Ae family / Ribosomal protein L35A / Ribosomal protein L36e / Ribosomal protein L36e domain superfamily / Ribosomal protein L36e
Similarity search - Domain/homology
Ribosomal protein L24 / 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 / 60S ribosomal protein L27, putative ...Ribosomal protein L24 / 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 / 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 / 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 / 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: 2.6 Å
AuthorsRajan KS / Yonath A
Funding support Israel, European Union, 2 items
OrganizationGrant numberCountry
Israel Science Foundation Israel
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 29, 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_17255.png

Downloads & links

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Map

FileDownload / File: emd_17255.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: 0.02
Minimum - Maximum-0.027386475 - 0.09056415
Average (Standard dev.)-0.00002101603 (±0.003589535)
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_17255_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_17255_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 F0R BODY1 OF FOCUSED REFINEMENT

Fileemd_17255_half_map_1.map
AnnotationHALF_MAP1_F0R_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 F0R BODY1 OF FOCUSED REFINEMENT

Fileemd_17255_half_map_2.map
AnnotationHALF_MAP2_F0R_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: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 552813

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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-8ove:
CRYO-EM STRUCTURE OF TRYPANOSOMA BRUCEI PROCYCLIC FORM 80S RIBOSOME : TB11CS6H1 snoRNA mutant

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