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- PDB-6q97: Structure of tmRNA SmpB bound in A site of E. coli 70S ribosome -

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Basic information

Entry
Database: PDB / ID: 6q97
TitleStructure of tmRNA SmpB bound in A site of E. coli 70S ribosome
Components
  • (30S ribosomal protein ...) x 20
  • (50S ribosomal protein ...) x 31
  • 16S ribosomal RNA
  • 23S ribosomal RNA
  • 5S ribosomal RNA
  • Nascent peptide
  • SsrA-binding protein
  • mRNA
  • tRNA-Met
  • tRNA-Val
  • transfer-messenger RNA (tmRNA)
KeywordsRIBOSOME / tmRNA SmpB trans-translation translation
Function / homology
Function and homology information


trans-translation / negative regulation of cytoplasmic translational initiation / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis / negative regulation of cytoplasmic translation ...trans-translation / negative regulation of cytoplasmic translational initiation / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis / negative regulation of cytoplasmic translation / translational termination / translation repressor activity / 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 / transcription elongation factor complex / cytosolic ribosome assembly / regulation of DNA-templated transcription elongation / 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 / 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
SsrA-binding protein / SsrA-binding protein, conserved site / Small protein B / SmpB protein / SsrA-binding protein. / Ribosomal protein L10, eubacterial, conserved site / Ribosomal protein L10 signature. / Ribosomal protein L10 / : / Ribosomal protein S21, conserved site ...SsrA-binding protein / SsrA-binding protein, conserved site / Small protein B / SmpB protein / SsrA-binding protein. / Ribosomal protein L10, eubacterial, conserved site / Ribosomal protein L10 signature. / Ribosomal protein L10 / : / Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L25, short-form / Ribosomal protein S14, bacterial/plastid / 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 L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L11, conserved site / Ribosomal protein L11 signature. / Ribosomal protein L10-like domain superfamily / Ribosomal protein L16 signature 1. / Ribosomal protein L10P / Ribosomal protein L10 / : / 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 L25p family / Ribosomal protein L25 / Ribosomal protein L11, N-terminal / Ribosomal protein L11, N-terminal domain / 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 L28/L24 superfamily / 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 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 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 / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 / Ribosomal protein L34, conserved site
Similarity search - Domain/homology
RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / 30S ribosomal protein S9 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL13 / 50S ribosomal protein L22 / 50S ribosomal protein L32 / 50S ribosomal protein L29 ...RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / 30S ribosomal protein S9 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL13 / 50S ribosomal protein L22 / 50S ribosomal protein L32 / 50S ribosomal protein L29 / 30S ribosomal protein S12 / 30S ribosomal protein S13 / 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 bL31 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL9 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein bS18 / 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 / SsrA-binding protein / 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 uL6 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL5 / Small ribosomal subunit protein bS21 / Large ribosomal subunit protein bL25 / 30S ribosomal protein S16 / 30S ribosomal protein S19 / 50S ribosomal protein L2
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsRae, C.D.
Funding support United Kingdom, 2items
OrganizationGrant numberCountry
Medical Research Council (United Kingdom)MC_U105184332 United Kingdom
Wellcome TrustWT096570 United Kingdom
CitationJournal: Science / Year: 2019
Title: How a circularized tmRNA moves through the ribosome.
Authors: Christopher D Rae / Yuliya Gordiyenko / V Ramakrishnan /
Abstract: During trans-translation, transfer-messenger RNA (tmRNA) and small protein B (SmpB) together rescue ribosomes stalled on a truncated mRNA and tag the nascent polypeptide for degradation. We used cryo- ...During trans-translation, transfer-messenger RNA (tmRNA) and small protein B (SmpB) together rescue ribosomes stalled on a truncated mRNA and tag the nascent polypeptide for degradation. We used cryo-electron microscopy to determine the structures of three key states of the tmRNA-SmpB-ribosome complex during trans translation at resolutions of 3.7 to 4.4 angstroms. The results show how tmRNA and SmpB act specifically on stalled ribosomes and how the circularized complex moves through the ribosome, enabling translation to switch from the old defective message to the reading frame on tmRNA.
History
DepositionDec 17, 2018Deposition site: PDBE / Processing site: PDBE
Revision 1.0Mar 13, 2019Provider: repository / Type: Initial release
Revision 1.1Apr 24, 2024Group: Author supporting evidence / Data collection ...Author supporting evidence / Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / em_image_scans / em_single_particle_entity / pdbx_struct_conn_angle / struct_conn / struct_conn_type
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_conn_type.id

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Structure visualization

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Structure viewerMolecule:
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Assembly

Deposited unit
1: 23S ribosomal RNA
2: 16S ribosomal RNA
3: 5S ribosomal RNA
5: SsrA-binding protein
6: Nascent peptide
8: tRNA-Met
9: mRNA
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
a: 50S ribosomal protein L31
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
4: transfer-messenger RNA (tmRNA)
7: tRNA-Val
hetero molecules


Theoretical massNumber of molelcules
Total (without water)2,338,335501
Polymers2,327,53460
Non-polymers10,801441
Water362
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area344540 Å2
ΔGint-5972 kcal/mol
Surface area896890 Å2
MethodPISA

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Components

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RNA chain , 7 types, 7 molecules 1238947

#1: RNA chain 23S ribosomal RNA


Mass: 941526.438 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli)
#2: RNA chain 16S ribosomal RNA


Mass: 497405.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli)
#3: RNA chain 5S ribosomal RNA


Mass: 38790.090 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli)
#6: RNA chain tRNA-Met


Mass: 24728.689 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli)
#7: RNA chain mRNA


Mass: 1892.173 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Production host: Escherichia coli (E. coli)
#59: RNA chain transfer-messenger RNA (tmRNA)


Mass: 117214.266 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Production host: Escherichia coli (E. coli)
#60: RNA chain tRNA-Val


Mass: 24823.707 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli)

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

#8: Protein 50S ribosomal protein L2


Mass: 29592.166 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: V0A5J4
#9: 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
#10: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P60723
#11: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P62399
#12: Protein 50S ribosomal protein L6 / Large ribosomal subunit protein uL6


Mass: 18672.418 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0AG55
#13: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7R1
#14: Protein 50S ribosomal protein L10 / 50S ribosomal protein L8 / Large ribosomal subunit protein uL10


Mass: 13981.147 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7J3
#15: Protein 50S ribosomal protein L11 / Large ribosomal subunit protein uL11


Mass: 14090.395 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7J7
#16: Protein 50S ribosomal protein L13


Mass: 15919.411 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A379XJZ2
#17: Protein 50S ribosomal protein L14 / Large ribosomal subunit protein uL14


Mass: 13565.067 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0ADY3
#18: Protein 50S ribosomal protein L15 / Large ribosomal subunit protein uL15


Mass: 15008.471 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P02413
#19: 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 L17 / Large ribosomal subunit protein bL17


Mass: 13592.823 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0AG44
#21: Protein 50S ribosomal protein L18 / Large ribosomal subunit protein uL18


Mass: 12548.383 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0C018
#22: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7K6
#23: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7L3
#24: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0AG48
#25: Protein 50S ribosomal protein L22


Mass: 11993.051 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: D7X2Z6
#26: Protein 50S ribosomal protein L23 / Large ribosomal subunit protein uL23


Mass: 10661.560 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0ADZ0
#27: Protein 50S ribosomal protein L24 / Large ribosomal subunit protein uL24


Mass: 11208.054 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P60624
#28: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P68919
#29: Protein 50S ribosomal protein L27 / Large ribosomal subunit protein bL27


Mass: 8275.498 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7L8
#30: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7M2
#31: Protein 50S ribosomal protein L29


Mass: 6826.881 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: E3PKZ6
#32: Protein 50S ribosomal protein L30


Mass: 6223.367 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A0E0XV41
#33: Protein 50S ribosomal protein L31 / Large ribosomal subunit protein bL31-A


Mass: 7516.693 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7M9
#34: Protein 50S ribosomal protein L32


Mass: 6131.992 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: D7XAL4
#35: Protein 50S ribosomal protein L33 / Large ribosomal subunit protein bL33


Mass: 6057.179 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7N9
#36: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7P5
#37: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7Q1
#38: Protein/peptide 50S ribosomal protein L36


Mass: 4320.338 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli)

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

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


Mass: 25072.867 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7V0
#40: Protein 30S ribosomal protein S3 / Small ribosomal subunit protein uS3


Mass: 23248.994 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7V3
#41: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7V8
#42: Protein 30S ribosomal protein S5 / Small ribosomal subunit protein uS5


Mass: 16475.037 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7W1
#43: Protein 30S ribosomal protein S6 / Small ribosomal subunit protein bS6


Mass: 12125.993 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P02358
#44: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P02359
#45: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7W7
#46: Protein 30S ribosomal protein S9


Mass: 14397.688 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A029HJ91
#47: Protein 30S ribosomal protein S10 / Small ribosomal subunit protein uS10


Mass: 11254.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7R5
#48: Protein 30S ribosomal protein S11 / Small ribosomal subunit protein uS11


Mass: 12487.200 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7R9
#49: Protein 30S ribosomal protein S12


Mass: 13683.053 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: F5NAB8
#50: Protein 30S ribosomal protein S13


Mass: 12738.911 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: H4IXV7
#51: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0AG59
#52: Protein 30S ribosomal protein S15 / Small ribosomal subunit protein uS15


Mass: 10072.543 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0ADZ4
#53: Protein 30S ribosomal protein S16


Mass: 9136.495 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: S0UHH0
#54: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0AG63
#55: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7T7
#56: Protein 30S ribosomal protein S19


Mass: 9349.939 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: U9ZUL7
#57: 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 / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7U7
#58: Protein 30S ribosomal protein S21 / Small ribosomal subunit protein bS21


Mass: 8392.844 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P68679

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Protein / Protein/peptide , 2 types, 2 molecules 56

#4: Protein SsrA-binding protein / Small protein B


Mass: 16638.166 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: smpB, smqB, b2620, JW2601 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A832
#5: Protein/peptide Nascent peptide


Mass: 2008.194 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Production host: Escherichia coli (E. coli)

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Non-polymers , 3 types, 443 molecules

#61: Chemical...
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 439 / Source method: obtained synthetically / Formula: Mg
#62: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#63: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Formula: H2O

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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

Component
IDNameTypeEntity IDParent-IDSource
1tmRNA SmpB bound in A site of E. coli 70S ribosomeRIBOSOME#1-#600MULTIPLE SOURCES
270S ribosomeORGANELLE OR CELLULAR COMPONENT#1-#3, #6, #8-#58, #601NATURAL
3tmRNA-SmpB, nascent peptide, mRNA, P-site tRNA, E-site tRNACOMPLEX#4-#5, #7, #591RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Escherichia coli (E. coli)562
23Escherichia coli (E. coli)562
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 44 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k)

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Processing

EM software
IDNameCategory
1RELIONparticle selection
2EPUimage acquisition
4GctfCTF correction
10RELIONinitial Euler assignment
11RELIONfinal Euler assignment
13RELION3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 47776 / Symmetry type: POINT

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