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- EMDB-26815: Cryo-EM structure of the ribosome-bound Bacteroides thetaiotaomic... -

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Basic information

Entry
Database: EMDB / ID: EMD-26815
TitleCryo-EM structure of the ribosome-bound Bacteroides thetaiotaomicron EF-G2
Map data
Sample
  • Complex: ribosome-bound Bacteroides thetaiotaomicron EF-G2
    • Protein or peptide: Tetracycline resistance protein TetQTetracycline
  • Ligand: GUANOSINE-5'-TRIPHOSPHATEGuanosine triphosphate
  • Ligand: MAGNESIUM ION
  • Ligand: water
Function / homology
Function and homology information


ribosome disassembly / translation elongation factor activity / GTPase activity / GTP binding
Similarity search - Function
Elongation factor G, domain III / EFG, domain V / Elongation Factor G, domain II / Elongation Factor G, domain III / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV / Elongation factor G, domain IV / Elongation factor G C-terminus / Elongation factor EFG, domain V-like / Elongation factor G C-terminus ...Elongation factor G, domain III / EFG, domain V / Elongation Factor G, domain II / Elongation Factor G, domain III / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV / Elongation factor G, domain IV / Elongation factor G C-terminus / Elongation factor EFG, domain V-like / Elongation factor G C-terminus / EF-G domain III/V-like / Translation elongation factor EFTu-like, domain 2 / Elongation factor Tu domain 2 / Translational (tr)-type GTP-binding domain / Elongation factor Tu GTP binding domain / Translational (tr)-type guanine nucleotide-binding (G) domain profile. / Small GTP-binding protein domain / Translation protein, beta-barrel domain superfamily / Ribosomal protein S5 domain 2-type fold, subgroup / Ribosomal protein S5 domain 2-type fold / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Tetracycline resistance protein TetQ
Similarity search - Component
Biological speciesBacteroides thetaiotaomicron VPI-5482 (bacteria)
Methodsingle particle reconstruction / Resolution: 3.7 Å
AuthorsWang C / Han W / Groisman EA / Liu J
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) United States
CitationJournal: To Be Published
Title: Cryo-EM structure of the ribosome-bound Bacteroides thetaiotaomicron EF-G2
Authors: Wang C / Han W / Groisman EA
History
DepositionMay 2, 2022-
Header (metadata) releaseMay 10, 2023-
Map releaseMay 10, 2023-
UpdateMay 10, 2023-
Current statusMay 10, 2023Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_26815.png

Downloads & links

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Map

FileDownload / File: emd_26815.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.068 Å
Density
Contour LevelBy AUTHOR: 0.35
Minimum - Maximum-2.7687325 - 4.1777544
Average (Standard dev.)0.0006652547 (±0.061466146)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions240240240
Spacing240240240
CellA=B=C: 256.31998 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_26815_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_26815_half_map_2.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 : ribosome-bound Bacteroides thetaiotaomicron EF-G2

EntireName: ribosome-bound Bacteroides thetaiotaomicron EF-G2
Components
  • Complex: ribosome-bound Bacteroides thetaiotaomicron EF-G2
    • Protein or peptide: Tetracycline resistance protein TetQTetracycline
  • Ligand: GUANOSINE-5'-TRIPHOSPHATEGuanosine triphosphate
  • Ligand: MAGNESIUM ION
  • Ligand: water

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Supramolecule #1: ribosome-bound Bacteroides thetaiotaomicron EF-G2

SupramoleculeName: ribosome-bound Bacteroides thetaiotaomicron EF-G2 / type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Bacteroides thetaiotaomicron VPI-5482 (bacteria)

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Macromolecule #1: Tetracycline resistance protein TetQ

MacromoleculeName: Tetracycline resistance protein TetQ / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Bacteroides thetaiotaomicron VPI-5482 (bacteria)
Strain: ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50
Molecular weightTheoretical: 80.353859 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString: MKVYQTNEIK NIALLGSSGS GKTTLVEAML FESGVIKRRG SVAAKNTVSD YFPVEQEYGY SVFSTVLHVE WNNKKLNIID CPGSDDFVG STVTALNVTD TAIILLNGQY GVEVGTQNHF RYTEKLNKPV IFLVNQLDNE KCDYDNILEQ LKEAYGSKVV P IQYPIATG ...String:
MKVYQTNEIK NIALLGSSGS GKTTLVEAML FESGVIKRRG SVAAKNTVSD YFPVEQEYGY SVFSTVLHVE WNNKKLNIID CPGSDDFVG STVTALNVTD TAIILLNGQY GVEVGTQNHF RYTEKLNKPV IFLVNQLDNE KCDYDNILEQ LKEAYGSKVV P IQYPIATG PGFNALIDVL LMKKYSWKPE GGAPVIEDIP AEEMDKAMEM HKALVEAAAE NDEGLMEKFF EQDSLTEDEM RE GIRKGLI ARGMFPVFCV CGGKDMGVRR LMEFLGNVVP FVSEMPKVEN TDGKEVAPDV NGPESLYFFK TSVEPHIGEV SYF KVMSGK VREGDDLLNA DRGSKERIAQ IYVVAGGNRV KVEELQAGDI GAAVKLKDVK TGNTLNGKDC DYKFNFIKYP NSKY SRAIK PVNEADVEKM MTILNRMREE DPTWVIEQSK ELKQTLVHGQ GEFHLRTLKW RLENNEKLQV KFEEPKIPYR ETITK AARA DYRHKKQSGG AGQFGEVHLI VEPYKEGMPV PDTYKFNGQE FKITVRGTEE IPLEWGGKLV FINSIVGGSI DARFLP AIM KGIMSRLEQG PLTGSYARDV RVIVYDGKMH PVDSNEISFM LAGRNAFSEA FKNAGPKILE PIYDVEVFVP SDRMGDV MG DLQGRRAMIM GMSSEKGFEK LVAKVPLKEM SSYSTALSSL TGGRASFIMK FASYELVPTD VQDKLIKDFE AKQTEE

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Macromolecule #2: GUANOSINE-5'-TRIPHOSPHATE

MacromoleculeName: GUANOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 2 / Number of copies: 1 / Formula: GTP
Molecular weightTheoretical: 523.18 Da
Chemical component information

ChemComp-GTP:
GUANOSINE-5'-TRIPHOSPHATE / GTP, energy-carrying molecule*YM / Guanosine triphosphate

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Macromolecule #3: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 3 / Number of copies: 1 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #4: water

MacromoleculeName: water / type: ligand / ID: 4 / Number of copies: 1 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER / Water

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Experimental details

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Structure determination

Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5

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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: 1.8 µm / Nominal defocus min: 0.6 µm
Image recordingFilm or detector model: DIRECT ELECTRON DE-64 (8k x 8k) / Average electron dose: 30.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 210467

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