- EMDB-29820: Structure of the Escherichia coli 70S ribosome in complex with EF... -
+
Open data
ID or keywords:
Loading...
-
Basic information
Entry
Database: EMDB / ID: EMD-29820
Title
Structure of the Escherichia coli 70S ribosome in complex with EF-Tu and Ile-tRNAIle(LAU) bound to the near-cognate AUG codon (Structure II)
Map data
Ribosome bound to EF-Tu-GDPCP in the presence of paromomycin with AUG codon in the A site, A-site Ile-tRNAIle(LAU), P-site tRNAfMet and E-site tRNAIle(LAU)(Structure II)
Sample
Complex: Structure of the Escherichia coli 70S ribosome in complex with EF-Tu and Ile-tRNAIle(LAU) bound to the near-cognate AUG codon (Structure II)
guanosine tetraphosphate binding / negative regulation of cytoplasmic translational initiation / stringent response / translation elongation factor activity / positive regulation of ribosome biogenesis / translational termination / DnaA-L2 complex / negative regulation of translational initiation / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity ...guanosine tetraphosphate binding / negative regulation of cytoplasmic translational initiation / stringent response / translation elongation factor activity / positive regulation of ribosome biogenesis / translational termination / DnaA-L2 complex / negative regulation of translational initiation / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / assembly of large subunit precursor of preribosome / ribosome assembly / cytosolic ribosome assembly / transcription antitermination / translational initiation / regulation of cell growth / DNA-templated transcription termination / maintenance of translational fidelity / mRNA 5'-UTR binding / large ribosomal subunit / ribosome binding / transferase activity / ribosomal small subunit assembly / ribosomal small subunit biogenesis / 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 / ribonucleoprotein complex / response to antibiotic / GTPase activity / mRNA binding / GTP binding / RNA binding / zinc ion binding / membrane / cytosol / cytoplasm Similarity search - Function
Translation elongation factor EFTu/EF1A, C-terminal / Translation elongation factor EFTu/EF1A, bacterial/organelle / Elongation factor Tu, domain 2 / Elongation factor Tu (EF-Tu), GTP-binding domain / : / Elongation factor Tu C-terminal domain / Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal / Tr-type G domain, conserved site / Translational (tr)-type guanine nucleotide-binding (G) domain signature. / Translation elongation factor EFTu-like, domain 2 ...Translation elongation factor EFTu/EF1A, C-terminal / Translation elongation factor EFTu/EF1A, bacterial/organelle / Elongation factor Tu, domain 2 / Elongation factor Tu (EF-Tu), GTP-binding domain / : / Elongation factor Tu C-terminal domain / Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal / Tr-type G domain, conserved site / Translational (tr)-type guanine nucleotide-binding (G) domain signature. / Translation elongation factor EFTu-like, domain 2 / Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L11, bacterial-type / Elongation factor Tu domain 2 / Ribosomal protein L25, short-form / Ribosomal protein S14, bacterial/plastid / Ribosomal protein L31 type A / Ribosomal protein S21 superfamily / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Translational (tr)-type GTP-binding domain / Elongation factor Tu GTP binding domain / Translational (tr)-type guanine nucleotide-binding (G) domain profile. / Ribosomal protein S21 / Ribosomal protein L31 signature. / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / Ribosomal protein L11, conserved site / Ribosomal protein L11 signature. / Ribosomal protein L16 signature 1. / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L16, conserved site / Ribosomal protein L16 signature 2. / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / : / Ribosomal protein L9 signature. / Ribosomal protein L9, bacteria/chloroplast / Ribosomal protein L9, C-terminal / Ribosomal protein L9, C-terminal domain / Ribosomal protein L9, C-terminal domain superfamily / Ribosomal protein L11, N-terminal / Ribosomal protein L11, N-terminal domain / Ribosomal protein L17 signature. / Ribosomal protein L11/L12 / Ribosomal protein L11, C-terminal / Ribosomal protein L11, C-terminal domain superfamily / Ribosomal protein L11/L12, N-terminal domain superfamily / Ribosomal protein L11/L12 / Ribosomal protein L11, RNA binding domain / Ribosomal L25p family / Ribosomal protein L25 / Ribosomal protein L36 signature. / Ribosomal protein L28/L24 superfamily / Ribosomal protein L32p, bacterial type / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / Ribosomal protein L9, N-terminal domain superfamily / Ribosomal protein L9 / Ribosomal protein L9, N-terminal / Ribosomal protein L9, N-terminal domain / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L28 / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L5, bacterial-type / Ribosomal protein L18, bacterial-type / : / Ribosomal protein L6, bacterial-type / Ribosomal protein S3, bacterial-type / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein S19, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S9, bacterial/plastid / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein S11, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein S4, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein L20 signature. / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L14P, bacterial-type Similarity search - Domain/homology
Small ribosomal subunit protein bS18 / Large ribosomal subunit protein bL36 / Small ribosomal subunit protein bS21 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS11 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein bL17 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS13 ...Small ribosomal subunit protein bS18 / Large ribosomal subunit protein bL36 / Small ribosomal subunit protein bS21 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS11 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein bL17 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS13 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein uL23 / 50S ribosomal protein L15 / Large ribosomal subunit protein bL21 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein bL20 / Small ribosomal subunit protein uS3 / Large ribosomal subunit protein bL34 / Small ribosomal subunit protein bS6 / Large ribosomal subunit protein uL6 / Small ribosomal subunit protein bS16 / Small ribosomal subunit protein bS20 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein bL25 / Large ribosomal subunit protein bL32 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS15 / Elongation factor Tu / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein bL33 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein uL11 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL31 / Large ribosomal subunit protein bL35 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL22 / Small ribosomal subunit protein uS19 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL14 / Small ribosomal subunit protein uS14 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein bL19 / Small ribosomal subunit protein uS10 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein bL9 Similarity search - Component
Biological species
Escherichia coli (E. coli) / Escherichia phage T4 (virus)
Method
single particle reconstruction / cryo EM / Resolution: 3.1 Å
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01GM136936
United States
Welch Foundation
H-2032-20200401
United States
Citation
Journal: Nat Struct Mol Biol / Year: 2024 Title: Structures of the ribosome bound to EF-Tu-isoleucine tRNA elucidate the mechanism of AUG avoidance. Authors: Mariia Yu Rybak / Matthieu G Gagnon / Abstract: The frequency of errors upon decoding of messenger RNA by the bacterial ribosome is low, with one misreading event per 1 × 10 codons. In the universal genetic code, the AUN codon box specifies ...The frequency of errors upon decoding of messenger RNA by the bacterial ribosome is low, with one misreading event per 1 × 10 codons. In the universal genetic code, the AUN codon box specifies two amino acids, isoleucine and methionine. In bacteria and archaea, decoding specificity of the AUA and AUG codons relies on the wobble avoidance strategy that requires modification of C34 in the anticodon loop of isoleucine transfer RNA (tRNA). Bacterial tRNA with 2-lysylcytidine (lysidine) at the wobble position deciphers AUA while avoiding AUG. Here we report cryo-electron microscopy structures of the Escherichia coli 70S ribosome complexed with elongation factor thermo unstable (EF-Tu) and isoleucine-tRNA in the process of decoding AUA and AUG. Lysidine in tRNA excludes AUG by promoting the formation of an unusual Hoogsteen purine-pyrimidine nucleobase geometry at the third position of the codon, weakening the interactions with the mRNA and destabilizing the EF-Tu ternary complex. Our findings elucidate the molecular mechanism by which tRNA specifically decodes AUA over AUG.
Download / File: emd_29820.map.gz / Format: CCP4 / Size: 512 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation
Ribosome bound to EF-Tu-GDPCP in the presence of paromomycin with AUG codon in the A site, A-site Ile-tRNAIle(LAU), P-site tRNAfMet and E-site tRNAIle(LAU)(Structure II)
Ribosome bound to EF-Tu-GDPCP in the presence of paromomycin with AUG codon in the A site, A-site Ile-tRNAIle(LAU), P-site tRNAfMet and E-site tRNAIle(LAU)(Structure II). Sharpened map
Ribosome bound to EF-Tu-GDPCP in the presence of paromomycin with AUG codon in the A site, A-site Ile-tRNAIle(LAU), P-site tRNAfMet and E-site tRNAIle(LAU)(Structure II). Half map 2
Ribosome bound to EF-Tu-GDPCP in the presence of paromomycin with AUG codon in the A site, A-site Ile-tRNAIle(LAU), P-site tRNAfMet and E-site tRNAIle(LAU)(Structure II). Half map 1
Supramolecule #1: Structure of the Escherichia coli 70S ribosome in complex with EF...
Supramolecule
Name: Structure of the Escherichia coli 70S ribosome in complex with EF-Tu and Ile-tRNAIle(LAU) bound to the near-cognate AUG codon (Structure II) type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#21, #23, #22, #24-#57
Source (natural)
Organism: Escherichia coli (E. coli)
Molecular weight
Theoretical: 2.6 MDa
+
Macromolecule #1: 16S Ribosomal RNA
Macromolecule
Name: 16S Ribosomal RNA / type: rna / ID: 1 / Number of copies: 1
Source (natural)
Organism: Escherichia coli (E. coli) / Strain: MRE600
Model: Quantifoil R2/1 / Material: GOLD / Mesh: 200 / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: PLASMA CLEANING / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: OTHER
Vitrification
Cryogen name: ETHANE / Chamber humidity: 85 % / Chamber temperature: 295 K / Instrument: LEICA EM GP
-
Electron microscopy
Microscope
TFS KRIOS
Image recording
Film or detector model: FEI FALCON III (4k x 4k) / Detector mode: INTEGRATING / Number grids imaged: 1 / Number real images: 10734 / Average exposure time: 1.0 sec. / Average electron dose: 40.0 e/Å2
Electron beam
Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
In the structure databanks used in Yorodumi, some data are registered as the other names, "COVID-19 virus" and "2019-nCoV". Here are the details of the virus and the list of structure data.
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)
EMDB accession codes are about to change! (news from PDBe EMDB page)
The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
The EM Navigator/Yorodumi systems omit the EMD- prefix.
Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator
Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.
Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi