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- PDB-8vs9: Endogenous trans-translation complex with tmRNA*SmpB in the P sit... -

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Basic information

Entry
Database: PDB / ID: 8vs9
TitleEndogenous trans-translation complex with tmRNA*SmpB in the P site and alanyl-tRNA in the A site and deacyl-tRNA in the E site of E. coli 70S ribosome
Components
  • (30S ribosomal protein ...) x 16
  • (50S ribosomal protein ...) x 26
  • (Large ribosomal subunit protein ...) x 5
  • (Small ribosomal subunit protein ...) x 4
  • 16S ribosomal RNA
  • 23S ribosomal RNA
  • 5S ribosomal RNA
  • A-tRNA
  • E-tRNA
  • Ribosomal protein L21
  • SsrA-binding protein
  • TMRN
KeywordsRIBOSOME / endogenous tmRNA / tmRNA decoding / A-minor interactions / SmpB / cryo-EM / alanyl-tRNA
Function / homology
Function and homology information


trans-translation / stringent response / misfolded RNA binding / Group I intron splicing / RNA folding / positive regulation of ribosome biogenesis / translational termination / DnaA-L2 complex / negative regulation of translational initiation / negative regulation of DNA-templated DNA replication initiation ...trans-translation / stringent response / misfolded RNA binding / Group I intron splicing / RNA folding / positive regulation of ribosome biogenesis / translational termination / DnaA-L2 complex / negative regulation of translational initiation / negative regulation of DNA-templated DNA replication initiation / ribosome assembly / mRNA regulatory element binding translation repressor activity / assembly of large subunit precursor of preribosome / positive regulation of RNA splicing / cytosolic ribosome assembly / transcription antitermination / regulation of cell growth / maintenance of translational fidelity / DNA-templated transcription termination / mRNA 5'-UTR binding / ribosomal small subunit biogenesis / ribosomal large subunit assembly / small ribosomal subunit rRNA binding / ribosomal small subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / ribosome binding / large ribosomal subunit / regulation of translation / small ribosomal subunit / cytoplasmic translation / 5S rRNA binding / cytosolic large ribosomal subunit / transferase activity / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / response to antibiotic / mRNA binding / RNA binding / zinc ion binding / membrane / metal ion binding / cytosol / cytoplasm
Similarity search - Function
SsrA-binding protein / SsrA-binding protein, conserved site / Small protein B / SmpB protein / SsrA-binding protein. / Ribosomal protein L1, bacterial-type / Ribosomal protein L10, eubacterial, conserved site / Ribosomal protein L10 signature. / Ribosomal protein L10 / : ...SsrA-binding protein / SsrA-binding protein, conserved site / Small protein B / SmpB protein / SsrA-binding protein. / Ribosomal protein L1, bacterial-type / Ribosomal protein L10, eubacterial, conserved site / Ribosomal protein L10 signature. / Ribosomal protein L10 / : / Ribosomal protein L1, conserved site / Ribosomal protein L1 / Ribosomal protein L1 signature. / Ribosomal protein L1, 3-layer alpha/beta-sandwich / Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L25, short-form / Ribosomal protein L1-like / Ribosomal protein L1/ribosomal biogenesis protein / Ribosomal protein S14, bacterial/plastid / Ribosomal protein L1p/L10e family / Ribosomal protein L11, bacterial-type / Ribosomal protein L31 type A / Ribosomal protein S21 superfamily / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein S21 / Ribosomal protein L31 signature. / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / Ribosomal protein L11, conserved site / Ribosomal protein L10-like domain superfamily / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L11 signature. / Ribosomal protein L10P / Ribosomal protein L10 / Ribosomal protein L16 signature 1. / : / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / Ribosomal protein L16, conserved site / Ribosomal protein L16 signature 2. / Ribosomal protein L11, N-terminal / Ribosomal protein L9 signature. / Ribosomal protein L17 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/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, N-terminal domain / Ribosomal protein L11, RNA binding domain / Ribosomal L25p family / Ribosomal protein L25 / Ribosomal protein L28/L24 superfamily / Ribosomal protein L36 signature. / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L32p, bacterial type / 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 L28 / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L5, bacterial-type / Ribosomal protein L6, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein L20 signature. / Ribosomal protein S3, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein S19, bacterial-type / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S11, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein S9, bacterial/plastid / Ribosomal protein L14P, bacterial-type / Ribosomal protein S4, bacterial-type
Similarity search - Domain/homology
: / : / : / : / : / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) ...: / : / : / : / : / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Large ribosomal subunit protein uL15 / Small ribosomal subunit protein bS18 / Large ribosomal subunit protein bL36 / Small ribosomal subunit protein bS21 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL24 / SsrA-binding protein / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS13 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein bL20 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS3 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein uL1 / Large ribosomal subunit protein bL9 / Large ribosomal subunit protein bL31 / Large ribosomal subunit protein bL33 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein bL17 / Small ribosomal subunit protein uS9 / Large ribosomal subunit protein bL21 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein bS16 / Small ribosomal subunit protein uS2 / 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 bS6 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein uL10 / Large ribosomal subunit protein uL11 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL35 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL22 / : / Small ribosomal subunit protein uS19 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL14 / : / Large ribosomal subunit protein bL19 / Small ribosomal subunit protein uS10
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsTeran, D. / Zhang, Y. / Korostelev, A.A.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Center for Research Resources (NIH/NCRR)R35 GM127094 and R56 AI151372 United States
CitationJournal: Front Microbiol / Year: 2024
Title: Endogenous trans-translation structure visualizes the decoding of the first tmRNA alanine codon.
Authors: David Teran / Ying Zhang / Andrei A Korostelev /
Abstract: Ribosomes stall on truncated or otherwise damaged mRNAs. Bacteria rely on ribosome rescue mechanisms to replenish the pool of ribosomes available for translation. Trans-translation, the main ribosome- ...Ribosomes stall on truncated or otherwise damaged mRNAs. Bacteria rely on ribosome rescue mechanisms to replenish the pool of ribosomes available for translation. Trans-translation, the main ribosome-rescue pathway, uses a circular hybrid transfer-messenger RNA (tmRNA) to restart translation and label the resulting peptide for degradation. Previous studies have visualized how tmRNA and its helper protein SmpB interact with the stalled ribosome to establish a new open reading frame. As tmRNA presents the first alanine codon via a non-canonical mRNA path in the ribosome, the incoming alanyl-tRNA must rearrange the tmRNA molecule to read the codon. Here, we describe cryo-EM analyses of an endogenous ribosome-tmRNA complex with tRNA accommodated in the A site. The flexible adenosine-rich tmRNA linker, which connects the mRNA-like domain with the codon, is stabilized by the minor groove of the canonically positioned anticodon stem of tRNA. This ribosome complex can also accommodate a tRNA near the E (exit) site, bringing insights into the translocation and dissociation of the tRNA that decoded the defective mRNA prior to tmRNA binding. Together, these structures uncover a key step of ribosome rescue, in which the ribosome starts translating the tmRNA reading frame.
History
DepositionJan 23, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 1, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
16S: 16S ribosomal RNA
23S: 23S ribosomal RNA
5S: 5S ribosomal RNA
ATRN: A-tRNA
ETRN: E-tRNA
L02: 50S ribosomal protein L2
L03: 50S ribosomal protein L3
L04: 50S ribosomal protein L4
L05: 50S ribosomal protein L5
L06: 50S ribosomal protein L6
L09: Large ribosomal subunit protein bL9
L1: 50S ribosomal protein L1
L10: 50S ribosomal protein L10
L11: 50S ribosomal protein L11
L13: 50S ribosomal protein L13
L14: 50S ribosomal protein L14
L15: 50S ribosomal protein L15
L16: 50S ribosomal protein L16
L17: Large ribosomal subunit protein bL17
L18: 50S ribosomal protein L18
L19: 50S ribosomal protein L19
L20: 50S ribosomal protein L20
L21: Ribosomal protein L21
L22: 50S ribosomal protein L22
L23: 50S ribosomal protein L23
L24: 50S ribosomal protein L24
L25: 50S ribosomal protein L25
L27: 50S ribosomal protein L27
L28: 50S ribosomal protein L28
L29: 50S ribosomal protein L29
L30: Large ribosomal subunit protein uL30
L31: Large ribosomal subunit protein bL31
L32: 50S ribosomal protein L32
L33: Large ribosomal subunit protein bL33
L34: 50S ribosomal protein L34
L35: 50S ribosomal protein L35
L36: 50S ribosomal protein L36
S02: 30S ribosomal protein S2
S03: 30S ribosomal protein S3
S04: 30S ribosomal protein S4
S05: 30S ribosomal protein S5
S06: 30S ribosomal protein S6
S07: 30S ribosomal protein S7
S08: 30S ribosomal protein S8
S09: Small ribosomal subunit protein uS9
S10: 30S ribosomal protein S10
S11: 30S ribosomal protein S11
S12: 30S ribosomal protein S12
S13: 30S ribosomal protein S13
S14: Small ribosomal subunit protein uS14
S15: Small ribosomal subunit protein uS15
S16: 30S ribosomal protein S16
S17: Small ribosomal subunit protein uS17
S18: 30S ribosomal protein S18
S19: 30S ribosomal protein S19
S20: 30S ribosomal protein S20
S21: 30S ribosomal protein S21
SMPB: SsrA-binding protein
TMRN: TMRN


Theoretical massNumber of molelcules
Total (without water)2,377,08359
Polymers2,377,08359
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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RNA chain , 6 types, 6 molecules 16S23S5SATRNETRNTMRN

#1: RNA chain 16S ribosomal RNA /


Mass: 498725.406 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1338015391
#2: RNA chain 23S ribosomal RNA /


Mass: 941305.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1036415628
#3: RNA chain 5S ribosomal RNA /


Mass: 38813.133 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1370526515
#4: RNA chain A-tRNA


Mass: 24476.531 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1845258627
#5: RNA chain E-tRNA


Mass: 24802.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1848934315
#59: RNA chain TMRN


Mass: 117198.266 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1741105611

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50S ribosomal protein ... , 26 types, 26 molecules L02L03L04L05L06L1L10L11L13L14L15L16L18L19L20L22L23L24L25L27L28L29L32L34L35L36

#6: Protein 50S ribosomal protein L2 / / Large ribosomal subunit protein uL2


Mass: 29923.619 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P60422
#7: Protein 50S ribosomal protein L3 / / Large ribosomal subunit protein uL3


Mass: 22277.535 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P60438
#8: Protein 50S ribosomal protein L4 /


Mass: 22121.566 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A1AGK6
#9: Protein 50S ribosomal protein L5 /


Mass: 20333.611 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A140N5A3
#10: Protein 50S ribosomal protein L6 /


Mass: 18932.791 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SR17
#12: Protein 50S ribosomal protein L1 /


Mass: 24765.660 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: B7MIX0
#13: Protein 50S ribosomal protein L10 / / 50S ribosomal protein L8 / Large ribosomal subunit protein uL10


Mass: 17736.596 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7J3
#14: Protein 50S ribosomal protein L11 / / Large ribosomal subunit protein uL11


Mass: 14894.362 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7J7
#15: Protein 50S ribosomal protein L13 /


Mass: 16050.606 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: S1EW51
#16: Protein 50S ribosomal protein L14 /


Mass: 13565.067 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: S1NW45
#17: Protein 50S ribosomal protein L15 /


Mass: 15008.471 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A037Y8L6
#18: Protein 50S ribosomal protein L16 / / Large ribosomal subunit protein uL16


Mass: 15312.269 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0ADY7
#20: Protein 50S ribosomal protein L18 /


Mass: 12794.668 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: S1E9N8
#21: Protein 50S ribosomal protein L19 /


Mass: 13159.278 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: V0AJX1
#22: Protein 50S ribosomal protein L20 /


Mass: 13528.024 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: B7MAS6
#24: Protein 50S ribosomal protein L22 / / Large ribosomal subunit protein uL22


Mass: 12253.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P61175
#25: Protein 50S ribosomal protein L23 /


Mass: 11222.160 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: U9Y6C4
#26: Protein 50S ribosomal protein L24 /


Mass: 11339.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A1X3KWX7
#27: Protein 50S ribosomal protein L25 /


Mass: 10713.465 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: D7XH79
#28: Protein 50S ribosomal protein L27 / / Large ribosomal subunit protein bL27


Mass: 9146.540 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7L8
#29: Protein 50S ribosomal protein L28 /


Mass: 9027.551 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A1X3JA73
#30: Protein 50S ribosomal protein L29 /


Mass: 7286.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: D6IEL0
#33: Protein 50S ribosomal protein L32 /


Mass: 6463.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: D7XI28
#35: Protein/peptide 50S ribosomal protein L34 /


Mass: 5397.463 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: B7MGC4
#36: Protein 50S ribosomal protein L35 / / Large ribosomal subunit protein bL35 / Ribosomal protein A


Mass: 7313.032 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7Q1
#37: Protein/peptide 50S ribosomal protein L36 /


Mass: 4377.390 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A0E2L017

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Large ribosomal subunit protein ... , 5 types, 5 molecules L09L17L30L31L33

#11: Protein Large ribosomal subunit protein bL9


Mass: 15789.020 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SFP2
#19: Protein Large ribosomal subunit protein bL17


Mass: 14393.657 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SR72
#31: Protein Large ribosomal subunit protein uL30


Mass: 6554.820 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SR32
#32: Protein/peptide Large ribosomal subunit protein bL31


Mass: 5093.944 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SIV2
#34: Protein Large ribosomal subunit protein bL33


Mass: 6388.631 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SME7

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Protein , 2 types, 2 molecules L21SMPB

#23: Protein Ribosomal protein L21 /


Mass: 11586.374 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SSG2
#58: Protein SsrA-binding protein / Small protein B


Mass: 17192.766 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A2X1N680

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30S ribosomal protein ... , 16 types, 16 molecules S02S03S04S05S06S07S08S10S11S12S13S16S18S19S20S21

#38: Protein 30S ribosomal protein S2 /


Mass: 26781.670 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3TPN2
#39: Protein 30S ribosomal protein S3 /


Mass: 26031.316 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: B7MCS9
#40: Protein 30S ribosomal protein S4 /


Mass: 23514.199 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7V8
#41: Protein 30S ribosomal protein S5 /


Mass: 17629.398 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7W1
#42: Protein 30S ribosomal protein S6 / / Small ribosomal subunit protein bS6


Mass: 15727.512 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P02358
#43: Protein 30S ribosomal protein S7 / / Small ribosomal subunit protein uS7


Mass: 20055.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P02359
#44: Protein 30S ribosomal protein S8 /


Mass: 14146.557 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: D7XKZ3
#46: Protein 30S ribosomal protein S10 /


Mass: 11755.597 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: V0ANK5
#47: Protein 30S ribosomal protein S11 /


Mass: 13870.975 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: B7MCR3
#48: Protein 30S ribosomal protein S12 /


Mass: 13768.157 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7S3
#49: Protein 30S ribosomal protein S13 /


Mass: 13128.467 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A7U9IV78
#52: Protein 30S ribosomal protein S16 /


Mass: 9207.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SYP2
#54: Protein 30S ribosomal protein S18 /


Mass: 9005.472 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A0E2KXL3
#55: Protein 30S ribosomal protein S19 /


Mass: 10455.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: S1EA57
#56: Protein 30S ribosomal protein S20 /


Mass: 9708.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3TRH7
#57: Protein 30S ribosomal protein S21 /


Mass: 8524.039 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A0E2L2J1

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Small ribosomal subunit protein ... , 4 types, 4 molecules S09S14S15S17

#45: Protein Small ribosomal subunit protein uS9


Mass: 14886.270 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SRY2
#50: Protein Small ribosomal subunit protein uS14


Mass: 11606.560 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A2X1PQW4
#51: Protein Small ribosomal subunit protein uS15


Mass: 10290.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SSQ7
#53: Protein Small ribosomal subunit protein uS17


Mass: 9724.491 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SQY7

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Details

Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: CryoEM of tmRNA and SMPB bound to P site and alanyl-tRNA bound to A site and E-tRNA of 70s ribosome
Type: RIBOSOME / Entity ID: all / Source: NATURAL
Source (natural)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R2/1
VitrificationInstrument: FEI VITROBOT MARK I / Cryogen name: ETHANE / Humidity: 90 % / Chamber temperature: 277.15 K

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 1100 nm / Nominal defocus min: 500 nm
Image recordingElectron dose: 29.9 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM software
IDNameCategory
4cisTEMCTF correction
7UCSF ChimeraXmodel fitting
9PHENIXmodel refinement
12FREALIGNclassification
13FREALIGN3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 15134749
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 4215 / Symmetry type: POINT

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