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Yorodumi- PDB-5l3p: Cryo-EM structure of stringent response factor RelA bound to ErmC... -
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-Basic information
Entry | Database: PDB / ID: 5l3p | ||||||||||||||||||
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Title | Cryo-EM structure of stringent response factor RelA bound to ErmCL-stalled ribosome complex | ||||||||||||||||||
Components |
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Keywords | RIBOSOME / Stringent Response / RelA / Cryo-EM | ||||||||||||||||||
Function / homology | Function and homology information guanosine tetraphosphate metabolic process / guanosine-3',5'-bis(diphosphate) 3'-diphosphatase activity / GTP diphosphokinase / GTP diphosphokinase activity / guanosine tetraphosphate biosynthetic process / nucleobase-containing small molecule interconversion / negative regulation of cytoplasmic translational initiation / response to starvation / stringent response / ornithine decarboxylase inhibitor activity ...guanosine tetraphosphate metabolic process / guanosine-3',5'-bis(diphosphate) 3'-diphosphatase activity / GTP diphosphokinase / GTP diphosphokinase activity / guanosine tetraphosphate biosynthetic process / nucleobase-containing small molecule interconversion / negative regulation of cytoplasmic translational initiation / response to starvation / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis / negative regulation of cytoplasmic translation / four-way junction DNA binding / translational termination / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / negative regulation of translational initiation / regulation of mRNA stability / mRNA regulatory element binding translation repressor activity / ribosome assembly / assembly of large subunit precursor of preribosome / positive regulation of RNA splicing / 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 / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosome biogenesis / ribosome binding / kinase activity / regulation of translation / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / transferase activity / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / tRNA binding / molecular adaptor activity / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / GTP binding / DNA binding / RNA binding / zinc ion binding / ATP binding / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||||||||||||||
Biological species | Escherichia coli (E. coli) Escherichia coli O157:H7 (bacteria) Escherichia coli K-12 (bacteria) Escherichia coli K12 (bacteria) | ||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | ||||||||||||||||||
Authors | Arenz, S. / Wilson, D.N. | ||||||||||||||||||
Funding support | Germany, Sweden, 5items
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Citation | Journal: Nucleic Acids Res / Year: 2016 Title: The stringent factor RelA adopts an open conformation on the ribosome to stimulate ppGpp synthesis. Authors: Stefan Arenz / Maha Abdelshahid / Daniel Sohmen / Roshani Payoe / Agata L Starosta / Otto Berninghausen / Vasili Hauryliuk / Roland Beckmann / Daniel N Wilson / Abstract: Under stress conditions, such as nutrient starvation, deacylated tRNAs bound within the ribosomal A-site are recognized by the stringent factor RelA, which converts ATP and GTP/GDP to (p)ppGpp. The ...Under stress conditions, such as nutrient starvation, deacylated tRNAs bound within the ribosomal A-site are recognized by the stringent factor RelA, which converts ATP and GTP/GDP to (p)ppGpp. The signaling molecules (p)ppGpp globally rewire the cellular transcriptional program and general metabolism, leading to stress adaptation. Despite the additional importance of the stringent response for regulation of bacterial virulence, antibiotic resistance and persistence, structural insight into how the ribosome and deacylated-tRNA stimulate RelA-mediated (p)ppGpp has been lacking. Here, we present a cryo-EM structure of RelA in complex with the Escherichia coli 70S ribosome with an average resolution of 3.7 Å and local resolution of 4 to >10 Å for RelA. The structure reveals that RelA adopts a unique 'open' conformation, where the C-terminal domain (CTD) is intertwined around an A/T-like tRNA within the intersubunit cavity of the ribosome and the N-terminal domain (NTD) extends into the solvent. We propose that the open conformation of RelA on the ribosome relieves the autoinhibitory effect of the CTD on the NTD, thus leading to stimulation of (p)ppGpp synthesis by RelA. | ||||||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
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PDBx/mmCIF format | 5l3p.cif.gz | 3.7 MB | Display | PDBx/mmCIF format |
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PDB format | pdb5l3p.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 5l3p.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 5l3p_validation.pdf.gz | 1.6 MB | Display | wwPDB validaton report |
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Full document | 5l3p_full_validation.pdf.gz | 1.7 MB | Display | |
Data in XML | 5l3p_validation.xml.gz | 221.4 KB | Display | |
Data in CIF | 5l3p_validation.cif.gz | 367 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/l3/5l3p ftp://data.pdbj.org/pub/pdb/validation_reports/l3/5l3p | HTTPS FTP |
-Related structure data
Related structure data | 4001MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-RNA chain , 6 types, 6 molecules ABavxy
#1: RNA chain | Mass: 941521.375 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 802133627 |
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#2: RNA chain | Mass: 38813.133 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 999944586 |
#32: RNA chain | Mass: 498909.844 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 731469900 |
#51: RNA chain | Mass: 1900.198 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Escherichia coli (E. coli) |
#52: RNA chain | Mass: 24818.893 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 731469900 |
#58: RNA chain | Mass: 23833.318 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) |
+50S ribosomal protein ... , 31 types, 31 molecules DEFGHINOPQRSTUVWXYZ0123456789JK
-30S ribosomal protein ... , 20 types, 20 molecules bcdefghijklmopqrtuns
#33: Protein | Mass: 26652.557 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7V0 |
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#34: Protein | Mass: 26031.316 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7V3 |
#35: Protein | Mass: 23514.199 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7V8 |
#36: Protein | Mass: 17629.398 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7W1 |
#37: Protein | Mass: 15727.512 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P02358 |
#38: Protein | Mass: 20055.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P02359 |
#39: Protein | Mass: 14146.557 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7W7 |
#40: Protein | Mass: 14886.270 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7X3 |
#41: Protein | Mass: 11755.597 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7R5 |
#42: Protein | Mass: 13870.975 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7R9 |
#43: Protein | Mass: 13768.157 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7S3 |
#44: Protein | Mass: 13128.467 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7S9 |
#45: Protein | Mass: 10290.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0ADZ4 |
#46: Protein | Mass: 9207.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7T3 |
#47: Protein | Mass: 9724.491 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0AG63 |
#48: Protein | Mass: 9005.472 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7T7 |
#49: Protein | Mass: 9708.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7U7 |
#50: Protein | Mass: 8524.039 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / References: UniProt: P68679 |
#55: Protein | Mass: 11677.637 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0AG59 |
#56: Protein | Mass: 10455.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7U3 |
-Protein , 1 types, 1 molecules z
#57: Protein | Mass: 90379.273 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli), (gene. exp.) Escherichia coli O157:H7 (bacteria) Gene: relA, Z4099, ECs3644 / Production host: Escherichia coli (E. coli) References: UniProt: P0AG22, UniProt: P0AG20*PLUS, GTP diphosphokinase |
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-Details
Has protein modification | Y |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Cryo-EM structure of stringent response factor RelA bound to ErmCL-stalled ribosome complex Type: RIBOSOME / Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: Escherichia coli (E. coli) |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid type: Quantifoil R3/3 |
Vitrification | Cryogen name: ETHANE |
-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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 700 nm / Cs: 2.7 mm |
Image recording | Electron dose: 25 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON II (4k x 4k) |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 24749 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL |