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- PDB-6szs: Release factor-dependent ribosome rescue by BrfA in the Gram-posi... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6szs | ||||||
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Title | Release factor-dependent ribosome rescue by BrfA in the Gram-positive bacterium Bacillus subtilis | ||||||
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![]() | RIBOSOME / Cryo-EM / bacterial ribosome rescue / Bacillus ribosome rescue factor A / Bacillus subtilis peptide chain release factor 2 | ||||||
Function / homology | ![]() translation release factor activity, codon specific / negative regulation of cytoplasmic translational initiation / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / positive regulation of ribosome biogenesis / endoribonuclease inhibitor activity ...translation release factor activity, codon specific / negative regulation of cytoplasmic translational initiation / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / positive regulation of ribosome biogenesis / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / four-way junction DNA binding / DnaA-L2 complex / translation repressor activity / negative regulation of translational initiation / regulation of mRNA stability / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / assembly of large subunit precursor of preribosome / positive regulation of RNA splicing / ribosome assembly / transcription elongation factor complex / cytosolic ribosome assembly / regulation of DNA-templated transcription elongation / DNA endonuclease activity / response to reactive oxygen species / transcription antitermination / regulation of cell growth / translational initiation / DNA-templated transcription termination / maintenance of translational fidelity / response to radiation / mRNA 5'-UTR binding / regulation of translation / ribosome biogenesis / large ribosomal subunit / ribosome binding / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / viral translational frameshifting / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / DNA binding / RNA binding / zinc ion binding / membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.06 Å | ||||||
![]() | Muller, C. / Beckert, B. / Wilson, D.N. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Release factor-dependent ribosome rescue by BrfA in the Gram-positive bacterium Bacillus subtilis. Authors: Naomi Shimokawa-Chiba / Claudia Müller / Keigo Fujiwara / Bertrand Beckert / Koreaki Ito / Daniel N Wilson / Shinobu Chiba / ![]() ![]() Abstract: Rescue of the ribosomes from dead-end translation complexes, such as those on truncated (non-stop) mRNA, is essential for the cell. Whereas bacteria use trans-translation for ribosome rescue, some ...Rescue of the ribosomes from dead-end translation complexes, such as those on truncated (non-stop) mRNA, is essential for the cell. Whereas bacteria use trans-translation for ribosome rescue, some Gram-negative species possess alternative and release factor (RF)-dependent rescue factors, which enable an RF to catalyze stop-codon-independent polypeptide release. We now discover that the Gram-positive Bacillus subtilis has an evolutionarily distinct ribosome rescue factor named BrfA. Genetic analysis shows that B. subtilis requires the function of either trans-translation or BrfA for growth, even in the absence of proteotoxic stresses. Biochemical and cryo-electron microscopy (cryo-EM) characterization demonstrates that BrfA binds to non-stop stalled ribosomes, recruits homologous RF2, but not RF1, and induces its transition into an open active conformation. Although BrfA is distinct from E. coli ArfA, they use convergent strategies in terms of mode of action and expression regulation, indicating that many bacteria may have evolved as yet unidentified ribosome rescue systems. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 3.2 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.3 MB | Display | ![]() |
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Full document | ![]() | 1.4 MB | Display | |
Data in XML | ![]() | 211.2 KB | Display | |
Data in CIF | ![]() | 374.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 10353MC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
+50S ribosomal protein ... , 29 types, 29 molecules 012345CDEFGHJKLMNOPQRSTUVWXYZ
-RNA chain , 5 types, 5 molecules ABavx
#7: RNA chain | Mass: 941306.188 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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#8: RNA chain | Mass: 38790.090 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Production host: ![]() ![]() |
#32: RNA chain | Mass: 499054.625 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Production host: ![]() ![]() |
#53: RNA chain | Mass: 1866.181 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#54: RNA chain | Mass: 24846.746 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Production host: ![]() ![]() |
-30S ribosomal protein ... , 20 types, 20 molecules bcdefghijklmnopqrstu
#33: Protein | Mass: 26781.670 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsB, b0169, JW0164 / Production host: ![]() ![]() |
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#34: Protein | Mass: 26031.316 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsC, b3314, JW3276 / Production host: ![]() ![]() |
#35: Protein | Mass: 23514.199 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsD, ramA, b3296, JW3258 / Production host: ![]() ![]() |
#36: Protein | Mass: 17629.398 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsE, spc, b3303, JW3265 / Production host: ![]() ![]() |
#37: Protein | Mass: 15727.512 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsF, b4200, JW4158 / Production host: ![]() ![]() |
#38: Protein | Mass: 20055.156 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsG, b3341, JW3303 / Production host: ![]() ![]() |
#39: Protein | Mass: 14146.557 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsH, b3306, JW3268 / Production host: ![]() ![]() |
#40: Protein | Mass: 14886.270 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsI, b3230, JW3199 / Production host: ![]() ![]() |
#41: Protein | Mass: 11755.597 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsJ, nusE, b3321, JW3283 / Production host: ![]() ![]() |
#42: Protein | Mass: 13870.975 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsK, b3297, JW3259 / Production host: ![]() ![]() |
#43: Protein | Mass: 13768.157 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsL, strA, b3342, JW3304 / Production host: ![]() ![]() |
#44: Protein | Mass: 13128.467 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsM, b3298, JW3260 / Production host: ![]() ![]() |
#45: Protein | Mass: 11606.560 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsN, b3307, JW3269 / Production host: ![]() ![]() |
#46: Protein | Mass: 10290.816 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsO, secC, b3165, JW3134 / Production host: ![]() ![]() |
#47: Protein | Mass: 9207.572 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsP, b2609, JW2590 / Production host: ![]() ![]() |
#48: Protein | Mass: 9724.491 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsQ, neaA, b3311, JW3273 / Production host: ![]() ![]() |
#49: Protein | Mass: 9005.472 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsR, b4202, JW4160 / Production host: ![]() ![]() |
#50: Protein | Mass: 10455.355 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsS, b3316, JW3278 / Production host: ![]() ![]() |
#51: Protein | Mass: 9708.464 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsT, b0023, JW0022 / Production host: ![]() ![]() |
#52: Protein | Mass: 8524.039 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: rpsU, b3065, JW3037 / Production host: ![]() ![]() |
-Protein , 2 types, 2 molecules yz
#55: Protein | Mass: 8113.376 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: yqkK, BSU23540 / Production host: ![]() ![]() |
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#56: Protein | Mass: 41638.559 Da / Num. of mol.: 1 / Mutation: Q251P Source method: isolated from a genetically manipulated source Details: -Q251P mutation (hydrolysis defective release factor) -low resolution regions were only the backbone was traced were kept as ALA Source: (gene. exp.) ![]() ![]() Gene: prfB, BSU35290 / Production host: ![]() ![]() |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||
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Source (recombinant) |
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Buffer solution | pH: 7.2 | ||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Cs: 2.7 mm |
Image recording | Electron dose: 83 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k) |
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Processing
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.06 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 154405 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | Space: REAL | ||||||||||||||||||||||||
Atomic model building | PDB-ID: 5MGP Accession code: 5MGP / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||
Refinement | Stereochemistry target values: CDL v1.2 | ||||||||||||||||||||||||
Refine LS restraints |
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