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- PDB-7jt3: Rotated 70S ribosome stalled on long mRNA with ArfB-1 and ArfB-2 ... -

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Basic information

Entry
Database: PDB / ID: 7jt3
TitleRotated 70S ribosome stalled on long mRNA with ArfB-1 and ArfB-2 bound in the A site (+9-IV)
Components
  • (30S ribosomal protein ...) x 20
  • (50S ribosomal protein ...) x 31
  • 16S ribosomal RNA
  • 23S ribosomal RNA
  • 5S ribosomal RNA
  • Peptidyl-tRNA hydrolase ArfB
  • mRNA
  • tRNAfMet
KeywordsRIBOSOME / ArfB / mRNA / TRANSLATION
Function / homology
Function and homology information


translation release factor activity / peptidyl-tRNA hydrolase / aminoacyl-tRNA hydrolase activity / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation ...translation release factor activity / peptidyl-tRNA hydrolase / aminoacyl-tRNA hydrolase activity / 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 / translational termination / four-way junction DNA binding / 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 / rescue of stalled ribosome / 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 / 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 / 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 / DNA binding / RNA binding / zinc ion binding / membrane / cytosol / cytoplasm
Similarity search - Function
Peptide chain release factor class I superfamily / Prokaryotic-type class I peptide chain release factors signature. / Peptide chain release factor class I / RF-1 domain / Ribosomal protein L1, bacterial-type / Ribosomal protein L10, eubacterial, conserved site / Ribosomal protein L10 signature. / Ribosomal protein L10 / : / Ribosomal protein L1, conserved site ...Peptide chain release factor class I superfamily / Prokaryotic-type class I peptide chain release factors signature. / Peptide chain release factor class I / RF-1 domain / 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 signature. / Ribosomal protein L1 / 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 L1p/L10e family / Ribosomal protein S14, bacterial/plastid / Ribosomal protein L11, bacterial-type / Ribosomal protein S21 superfamily / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein S21 / Ribosomal protein L11, conserved site / : / Ribosomal protein L11 signature. / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L10-like domain superfamily / 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 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 L17 signature. / Ribosomal protein L11, N-terminal / Ribosomal L25p family / Ribosomal protein L11, N-terminal domain / Ribosomal protein L25 / 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, RNA binding domain / Ribosomal protein L11/L12 / Ribosomal protein L36 signature. / Ribosomal protein L28/L24 superfamily / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / Ribosomal protein L32p, bacterial type / 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 L18, bacterial-type / Ribosomal protein L6, bacterial-type / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / Ribosomal protein S3, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein S19, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S11, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein L20 signature. / Ribosomal protein S9, bacterial/plastid / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein S4, bacterial-type / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / Ribosomal protein L14P, bacterial-type
Similarity search - Domain/homology
: / : / : / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / 50S ribosomal protein L1 / Small ribosomal subunit protein bS6 ...: / : / : / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / 50S ribosomal protein L1 / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL10 / Large ribosomal subunit protein uL11 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL36A / Large ribosomal subunit protein bL9 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein bS16 / Small ribosomal subunit protein bS18 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein bS20 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein uL23 / Small ribosomal subunit protein uS15 / Large ribosomal subunit protein bL17 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL6 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL18 / Peptidyl-tRNA hydrolase ArfB / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL5 / Small ribosomal subunit protein bS21 / Large ribosomal subunit protein bL25
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
Escherichia coli K-12 (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsCarbone, C.E. / Korostelev, A.A.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM127094 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM107465 United States
CitationJournal: Nat Commun / Year: 2020
Title: ArfB can displace mRNA to rescue stalled ribosomes.
Authors: Christine E Carbone / Gabriel Demo / Rohini Madireddy / Egor Svidritskiy / Andrei A Korostelev /
Abstract: Ribosomes stalled during translation must be rescued to replenish the pool of translation-competent ribosomal subunits. Bacterial alternative rescue factor B (ArfB) releases nascent peptides from ...Ribosomes stalled during translation must be rescued to replenish the pool of translation-competent ribosomal subunits. Bacterial alternative rescue factor B (ArfB) releases nascent peptides from ribosomes stalled on mRNAs truncated at the A site, allowing ribosome recycling. Prior structural work revealed that ArfB recognizes such ribosomes by inserting its C-terminal α-helix into the vacant mRNA tunnel. In this work, we report that ArfB can efficiently recognize a wider range of mRNA substrates, including longer mRNAs that extend beyond the A-site codon. Single-particle cryo-EM unveils that ArfB employs two modes of function depending on the mRNA length. ArfB acts as a monomer to accommodate a shorter mRNA in the ribosomal A site. By contrast, longer mRNAs are displaced from the mRNA tunnel by more than 20 Å and are stabilized in the intersubunit space by dimeric ArfB. Uncovering distinct modes of ArfB function resolves conflicting biochemical and structural studies, and may lead to re-examination of other ribosome rescue pathways, whose functions depend on mRNA lengths.
History
DepositionAug 17, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 11, 2020Provider: repository / Type: Initial release
Revision 1.1Mar 6, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
b: 50S ribosomal protein L2
c: 50S ribosomal protein L3
d: 50S ribosomal protein L4
e: 50S ribosomal protein L5
f: 50S ribosomal protein L6
g: 50S ribosomal protein L9
h: 50S ribosomal protein L10
i: 50S ribosomal protein L11
j: 50S ribosomal protein L13
k: 50S ribosomal protein L14
l: 50S ribosomal protein L15
m: 50S ribosomal protein L16
n: 50S ribosomal protein L17
o: 50S ribosomal protein L18
p: 50S ribosomal protein L19
q: 50S ribosomal protein L20
r: 50S ribosomal protein L21
s: 50S ribosomal protein L22
t: 50S ribosomal protein L23
u: 50S ribosomal protein L24
v: 50S ribosomal protein L25
w: 50S ribosomal protein L27
x: 50S ribosomal protein L28
y: 50S ribosomal protein L29
z: 50S ribosomal protein L30
B: 50S ribosomal protein L32
C: 50S ribosomal protein L33
D: 50S ribosomal protein L34
E: 50S ribosomal protein L35
F: 50S ribosomal protein L36
G: 30S ribosomal protein S2
H: 30S ribosomal protein S3
I: 30S ribosomal protein S4
J: 30S ribosomal protein S5
K: 30S ribosomal protein S6
L: 30S ribosomal protein S7
M: 30S ribosomal protein S8
N: 30S ribosomal protein S9
O: 30S ribosomal protein S10
P: 30S ribosomal protein S11
Q: 30S ribosomal protein S12
R: 30S ribosomal protein S13
S: 30S ribosomal protein S14
T: 30S ribosomal protein S15
U: 30S ribosomal protein S16
V: 30S ribosomal protein S17
W: 30S ribosomal protein S18
X: 30S ribosomal protein S19
Y: 30S ribosomal protein S20
Z: 30S ribosomal protein S21
a: 50S ribosomal protein L1
3: 16S ribosomal RNA
1: 23S ribosomal RNA
2: 5S ribosomal RNA
5: tRNAfMet
4: mRNA
8: Peptidyl-tRNA hydrolase ArfB
9: Peptidyl-tRNA hydrolase ArfB


Theoretical massNumber of molelcules
Total (without water)2,222,87658
Polymers2,222,87658
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
NMR ensembles
DataCriteria
Number of conformers (submitted / calculated)1 / -
Representative

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Components

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50S ribosomal protein ... , 31 types, 31 molecules bcdefghijklmnopqrstuvwxyzBCDEFa

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


Mass: 29663.244 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P60422
#2: 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 / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P60438
#3: Protein 50S ribosomal protein L4 / Large ribosomal subunit protein uL4


Mass: 22121.566 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P60723
#4: Protein 50S ribosomal protein L5 / Large ribosomal subunit protein uL5


Mass: 20073.234 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P62399
#5: Protein 50S ribosomal protein L6 / Large ribosomal subunit protein uL6


Mass: 18801.598 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0AG55
#6: Protein 50S ribosomal protein L9 / Large ribosomal subunit protein bL9


Mass: 15789.020 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7R1
#7: 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 / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7J3
#8: 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 / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7J7
#9: Protein 50S ribosomal protein L13 / Large ribosomal subunit protein uL13


Mass: 16050.606 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0AA10
#10: Protein 50S ribosomal protein L14 / Large ribosomal subunit protein uL14


Mass: 13451.910 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0ADY3
#11: Protein 50S ribosomal protein L15 / Large ribosomal subunit protein uL15


Mass: 14877.273 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P02413
#12: 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 / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0ADY7
#13: Protein 50S ribosomal protein L17 / Large ribosomal subunit protein bL17


Mass: 13721.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0AG44
#14: Protein 50S ribosomal protein L18 / Large ribosomal subunit protein uL18


Mass: 12663.471 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0C018
#15: Protein 50S ribosomal protein L19 / Large ribosomal subunit protein bL19


Mass: 13028.082 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7K6
#16: Protein 50S ribosomal protein L20 / Large ribosomal subunit protein bL20


Mass: 13396.828 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7L3
#17: Protein 50S ribosomal protein L21 / Large ribosomal subunit protein bL21


Mass: 11586.374 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0AG48
#18: 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 / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P61175
#19: Protein 50S ribosomal protein L23 / Large ribosomal subunit protein uL23


Mass: 10546.472 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0ADZ0
#20: Protein 50S ribosomal protein L24 / Large ribosomal subunit protein uL24


Mass: 11078.874 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P60624
#21: Protein 50S ribosomal protein L25 / Large ribosomal subunit protein bL25


Mass: 10713.465 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P68919
#22: Protein 50S ribosomal protein L27 / Large ribosomal subunit protein bL27


Mass: 8174.394 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7L8
#23: Protein 50S ribosomal protein L28 / Large ribosomal subunit protein bL28


Mass: 8896.354 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7M2
#24: Protein 50S ribosomal protein L29 / Large ribosomal subunit protein uL29


Mass: 7286.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7M6
#25: Protein 50S ribosomal protein L30 / Large ribosomal subunit protein uL30


Mass: 6423.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0AG51
#26: Protein 50S ribosomal protein L32 / Large ribosomal subunit protein bL32


Mass: 6332.249 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7N4
#27: Protein/peptide 50S ribosomal protein L33 / Large ribosomal subunit protein bL33


Mass: 5814.842 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7N9
#28: Protein/peptide 50S ribosomal protein L34 / Large ribosomal subunit protein bL34


Mass: 5397.463 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7P5
#29: Protein 50S ribosomal protein L35 / Large ribosomal subunit protein bL35 / Ribosomal protein A


Mass: 7181.835 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7Q1
#30: Protein/peptide 50S ribosomal protein L36 / Large ribosomal subunit protein bL36-A / Ribosomal protein B


Mass: 4377.390 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7Q6
#51: Protein 50S ribosomal protein L1


Mass: 24765.660 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: A0A4S5ALA4

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30S ribosomal protein ... , 20 types, 20 molecules GHIJKLMNOPQRSTUVWXYZ

#31: Protein 30S ribosomal protein S2 / Small ribosomal subunit protein uS2


Mass: 25015.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7V0
#32: Protein 30S ribosomal protein S3 / Small ribosomal subunit protein uS3


Mass: 23078.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7V3
#33: Protein 30S ribosomal protein S4 / Small ribosomal subunit protein uS4


Mass: 23383.002 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7V8
#34: Protein 30S ribosomal protein S5 / Small ribosomal subunit protein uS5


Mass: 16532.088 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7W1
#35: Protein 30S ribosomal protein S6 / Small ribosomal subunit protein bS6


Mass: 11669.371 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P02358
#36: Protein 30S ribosomal protein S7 / Small ribosomal subunit protein uS7


Mass: 16861.523 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P02359
#37: Protein 30S ribosomal protein S8 / Small ribosomal subunit protein uS8


Mass: 14015.361 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7W7
#38: Protein 30S ribosomal protein S9 / Small ribosomal subunit protein uS9


Mass: 14554.882 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7X3
#39: Protein 30S ribosomal protein S10 / Small ribosomal subunit protein uS10


Mass: 11196.988 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7R5
#40: Protein 30S ribosomal protein S11 / Small ribosomal subunit protein uS11


Mass: 12388.068 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7R9
#41: Protein 30S ribosomal protein S12 / Small ribosomal subunit protein uS12


Mass: 13636.961 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7S3
#42: Protein 30S ribosomal protein S13 / Small ribosomal subunit protein uS13


Mass: 12625.753 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7S9
#43: Protein 30S ribosomal protein S14 / Small ribosomal subunit protein uS14


Mass: 11475.364 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0AG59
#44: Protein 30S ribosomal protein S15 / Small ribosomal subunit protein uS15


Mass: 10159.621 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0ADZ4
#45: Protein 30S ribosomal protein S16 / Small ribosomal subunit protein bS16


Mass: 9207.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7T3
#46: Protein 30S ribosomal protein S17 / Small ribosomal subunit protein uS17


Mass: 9263.946 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0AG63
#47: Protein 30S ribosomal protein S18 / Small ribosomal subunit protein bS18


Mass: 7606.768 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7T7
#48: Protein 30S ribosomal protein S19 / Small ribosomal subunit protein uS19


Mass: 9057.626 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7U3
#49: Protein 30S ribosomal protein S20 / Small ribosomal subunit protein bS20


Mass: 9506.190 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P0A7U7
#50: Protein 30S ribosomal protein S21 / Small ribosomal subunit protein bS21


Mass: 7763.073 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (strain K12) (bacteria) / Strain: K12 / References: UniProt: P68679

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RNA chain , 5 types, 5 molecules 31254

#52: RNA chain 16S ribosomal RNA


Mass: 498724.406 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 1789840096
#53: RNA chain 23S ribosomal RNA


Mass: 941305.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 802133627
#54: RNA chain 5S ribosomal RNA


Mass: 38813.133 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1266961702
#55: RNA chain tRNAfMet


Mass: 24802.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: cell / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1275521620
#56: RNA chain mRNA


Mass: 6550.040 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Escherichia coli K-12 (bacteria)

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Protein , 1 types, 2 molecules 89

#57: Protein Peptidyl-tRNA hydrolase ArfB / PTH / Alternative ribosome-rescue factor B


Mass: 14496.717 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (strain K12) (bacteria)
Strain: K12 / Gene: arfB, yaeJ, b0191, JW0187 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P40711, peptidyl-tRNA hydrolase

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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: Rotated 70S ribosome stalled on long mRNA with ArfB-1 and ArfB-2 bound in the A site
Type: RIBOSOME / Entity ID: all / Source: NATURAL
Molecular weightExperimental value: NO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Buffer solutionpH: 7
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: unspecified
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 49.6 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING ONLY
3D reconstructionResolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 5711 / Symmetry type: POINT
NMR ensembleConformers submitted total number: 1

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