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- PDB-8b0x: Translating 70S ribosome in the unrotated state (P and E, tRNAs) -

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Basic information

Entry
Database: PDB / ID: 8b0x
TitleTranslating 70S ribosome in the unrotated state (P and E, tRNAs)
Components
  • (30S ribosomal protein ...) x 20
  • (50S ribosomal protein ...) x 28
  • 16S rRNA
  • 23S rRNA23S ribosomal RNA
  • 5S rRNA5S ribosomal RNA
  • P-site tRNA
  • mRNAMessenger RNA
KeywordsRIBOSOME / 70S / bacterial / translation / high-resolution
Function / homology
Function and homology information


mRNA base-pairing translational repressor activity / ornithine decarboxylase inhibitor activity / misfolded RNA binding / transcription antitermination factor activity, RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis ...mRNA base-pairing translational repressor activity / ornithine decarboxylase inhibitor activity / misfolded RNA binding / transcription antitermination factor activity, 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 / DnaA-L2 complex / four-way junction DNA binding / negative regulation of translational initiation / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / regulation of mRNA stability / ribosome assembly / mRNA regulatory element binding translation repressor activity / response to reactive oxygen species / assembly of large subunit precursor of preribosome / positive regulation of RNA splicing / DNA endonuclease activity / transcription elongation factor complex / cytosolic ribosome assembly / regulation of DNA-templated transcription elongation / transcription antitermination / regulation of cell growth / maintenance of translational fidelity / DNA-templated transcription termination / response to radiation / 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 / ribosome biogenesis / regulation of translation / cytoplasmic translation / small ribosomal subunit / 5S rRNA binding / cytosolic large ribosomal subunit / transferase activity / tRNA binding / negative regulation of translation / rRNA binding / molecular adaptor activity / ribosome / structural constituent of ribosome / translation / response to antibiotic / mRNA binding / negative regulation of DNA-templated transcription / DNA binding / RNA binding / zinc ion binding / membrane / cytosol / cytoplasm
Similarity search - Function
Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L25, short-form / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S21 superfamily / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein S21 / Ribosomal protein L21, conserved site ...Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L25, short-form / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S21 superfamily / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein S21 / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / 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 L17 signature. / 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 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 L18, 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 S4, bacterial-type / Ribosomal protein L14P, bacterial-type / Ribosomal protein L34, conserved site / Ribosomal protein L34 signature. / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L35 / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal L28 family / Ribosomal protein L33 / Ribosomal protein L33 / Ribosomal protein L28/L24 / Ribosomal protein L33 superfamily / : / Ribosomal protein L30, bacterial-type / Ribosomal protein L16 / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / L28p-like / Ribosomal protein L20 / Ribosomal protein S16 / Ribosomal protein S16 / Ribosomal protein S16 domain superfamily / Ribosomal protein L20 / Ribosomal protein L20, C-terminal / Ribosomal protein L21 / Ribosomal protein L27 / Ribosomal L27 protein / Ribosomal protein L19 / Ribosomal protein L19 superfamily
Similarity search - Domain/homology
: / : / : / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 ...: / : / : / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein uL15 / 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 / 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 B (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 1.55 Å
AuthorsFromm, S.A. / O'Connor, K.M. / Purdy, M. / Bhatt, P.R. / Loughran, G. / Atkins, J.F. / Jomaa, A. / Mattei, S.
Funding support Ireland, European Union, 4items
OrganizationGrant numberCountry
Other government
Other government
Irish Research CouncilIRCLA/2019/74 Ireland
iNEXT-Discovery871037European Union
Citation
Journal: Nat Commun / Year: 2023
Title: The translating bacterial ribosome at 1.55 Å resolution generated by cryo-EM imaging services.
Authors: Simon A Fromm / Kate M O'Connor / Michael Purdy / Pramod R Bhatt / Gary Loughran / John F Atkins / Ahmad Jomaa / Simone Mattei /
Abstract: Our understanding of protein synthesis has been conceptualised around the structure and function of the bacterial ribosome. This complex macromolecular machine is the target of important ...Our understanding of protein synthesis has been conceptualised around the structure and function of the bacterial ribosome. This complex macromolecular machine is the target of important antimicrobial drugs, an integral line of defence against infectious diseases. Here, we describe how open access to cryo-electron microscopy facilities combined with bespoke user support enabled structural determination of the translating ribosome from Escherichia coli at 1.55 Å resolution. The obtained structures allow for direct determination of the rRNA sequence to identify ribosome polymorphism sites in the E. coli strain used in this study and enable interpretation of the ribosomal active and peripheral sites at unprecedented resolution. This includes scarcely populated chimeric hybrid states of the ribosome engaged in several tRNA translocation steps resolved at ~2 Å resolution. The current map not only improves our understanding of protein synthesis but also allows for more precise structure-based drug design of antibiotics to tackle rising bacterial resistance.
#1: Journal: Biorxiv / Year: 2022
Title: The translating bacterial ribosome at 1.55 angstrom resolution by open access cryo-EM
Authors: Fromm, S.A. / O'Connor, K.M. / Purdy, M. / Bhatt, P.R. / Loughran, G. / Atkins, J.F. / Jomaa, A. / Mattei, S.
History
DepositionSep 8, 2022Deposition site: PDBE / Processing site: PDBE
Revision 1.0Nov 30, 2022Provider: repository / Type: Initial release
Revision 1.1Dec 7, 2022Group: Database references / Category: citation_author / Item: _citation_author.name
Revision 1.2Mar 8, 2023Group: Database references / Category: citation / citation_author
Revision 2.0Nov 15, 2023Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Refinement description
Category: atom_site / chem_comp_atom ...atom_site / chem_comp_atom / chem_comp_bond / em_3d_fitting_list / pdbx_validate_rmsd_bond / struct_conn
Item: _atom_site.auth_atom_id / _atom_site.label_atom_id ..._atom_site.auth_atom_id / _atom_site.label_atom_id / _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id / _em_3d_fitting_list.source_name / _em_3d_fitting_list.type / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr2_label_atom_id
Revision 2.1Apr 24, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond
Item: _chem_comp_atom.atom_id / _chem_comp_bond.atom_id_1 ..._chem_comp_atom.atom_id / _chem_comp_bond.atom_id_1 / _chem_comp_bond.atom_id_2 / _chem_comp_bond.pdbx_aromatic_flag / _chem_comp_bond.value_order

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
0: 50S ribosomal protein L33
1: 50S ribosomal protein L34
2: 50S ribosomal protein L35
3: 50S ribosomal protein L36
A: 16S rRNA
B: 30S ribosomal protein S2
C: 30S ribosomal protein S3
D: 30S ribosomal protein S4
E: 30S ribosomal protein S5
F: 30S ribosomal protein S6
G: 30S ribosomal protein S7
H: 30S ribosomal protein S8
I: 30S ribosomal protein S9
J: 30S ribosomal protein S10
K: 30S ribosomal protein S11
L: 30S ribosomal protein S12
M: 30S ribosomal protein S13
N: 30S ribosomal protein S14
O: 30S ribosomal protein S15
P: 30S ribosomal protein S16
Q: 30S ribosomal protein S17
R: 30S ribosomal protein S18
S: 30S ribosomal protein S19
T: 30S ribosomal protein S20
U: 30S ribosomal protein S21
X: mRNA
Z: P-site tRNA
a: 23S rRNA
b: 5S rRNA
c: 50S ribosomal protein L2
d: 50S ribosomal protein L3
e: 50S ribosomal protein L4
f: 50S ribosomal protein L5
g: 50S ribosomal protein L6
h: 50S ribosomal protein L9
i: 50S ribosomal protein L13
j: 50S ribosomal protein L14
k: 50S ribosomal protein L15
l: 50S ribosomal protein L16
m: 50S ribosomal protein L17
n: 50S ribosomal protein L18
o: 50S ribosomal protein L19
p: 50S ribosomal protein L20
q: 50S ribosomal protein L21
r: 50S ribosomal protein L22
s: 50S ribosomal protein L23
t: 50S ribosomal protein L24
u: 50S ribosomal protein L25
v: 50S ribosomal protein L27
w: 50S ribosomal protein L28
x: 50S ribosomal protein L29
y: 50S ribosomal protein L30
z: 50S ribosomal protein L32
hetero molecules


Theoretical massNumber of molelcules
Total (without water)2,185,216583
Polymers2,169,80853
Non-polymers15,408530
Water206,47011461
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area311340 Å2
ΔGint-2350 kcal/mol
Surface area733230 Å2
MethodPISA

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Components

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50S ribosomal protein ... , 28 types, 28 molecules 0123cdefghijklmnopqrstuvwxyz

#1: Protein 50S ribosomal protein L33 / / Large ribosomal subunit protein bL33


Mass: 6388.631 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7N9
#2: 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 B (bacteria) / Strain: K12 / References: UniProt: P0A7P5
#3: 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 B (bacteria) / Strain: K12 / References: UniProt: P0A7Q1
#4: 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 / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7Q6
#30: 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 B (bacteria) / Strain: K12 / References: UniProt: P60422
#31: Protein 50S ribosomal protein L3 / / Large ribosomal subunit protein uL3


Mass: 22291.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P60438
#32: 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 B (bacteria) / Strain: K12 / References: UniProt: P60723
#33: Protein 50S ribosomal protein L5 / / Large ribosomal subunit protein uL5


Mass: 20333.611 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P62399
#34: Protein 50S ribosomal protein L6 / / Large ribosomal subunit protein uL6


Mass: 18932.791 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0AG55
#35: 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 B (bacteria) / Strain: K12 / References: UniProt: P0A7R1
#36: 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 / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0AA10
#37: 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 B (bacteria) / Strain: K12 / References: UniProt: P0ADY3
#38: 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 B (bacteria) / Strain: K12 / References: UniProt: P02413
#39: Protein 50S ribosomal protein L16 / / Large ribosomal subunit protein uL16


Mass: 15329.343 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0ADY7
#40: Protein 50S ribosomal protein L17 / / Large ribosomal subunit protein bL17


Mass: 14393.657 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0AG44
#41: Protein 50S ribosomal protein L18 / / Large ribosomal subunit protein uL18


Mass: 12794.668 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0C018
#42: Protein 50S ribosomal protein L19 / / Large ribosomal subunit protein bL19


Mass: 13159.278 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7K6
#43: Protein 50S ribosomal protein L20 / / Large ribosomal subunit protein bL20


Mass: 13528.024 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7L3
#44: 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 B (bacteria) / Strain: K12 / References: UniProt: P0AG48
#45: 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 B (bacteria) / Strain: K12 / References: UniProt: P61175
#46: Protein 50S ribosomal protein L23 / / Large ribosomal subunit protein uL23


Mass: 11222.160 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0ADZ0
#47: Protein 50S ribosomal protein L24 / / Large ribosomal subunit protein uL24


Mass: 11339.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P60624
#48: 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 B (bacteria) / Strain: K12 / References: UniProt: P68919
#49: 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 B (bacteria) / Strain: K12 / References: UniProt: P0A7L8
#50: Protein 50S ribosomal protein L28 / / Large ribosomal subunit protein bL28


Mass: 9027.551 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7M2
#51: 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 / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7M6
#52: Protein 50S ribosomal protein L30 / / Large ribosomal subunit protein uL30


Mass: 6554.820 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0AG51
#53: Protein 50S ribosomal protein L32 / / Large ribosomal subunit protein bL32


Mass: 6463.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7N4

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RNA chain , 5 types, 5 molecules AXZab

#5: RNA chain 16S rRNA /


Mass: 503775.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / References: GenBank: 991965528
#26: RNA chain mRNA / Messenger RNA


Mass: 1923.237 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Escherichia coli B (bacteria)
#27: RNA chain P-site tRNA


Mass: 24842.811 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / References: GenBank: 1804121330
#28: RNA chain 23S rRNA / 23S ribosomal RNA


Mass: 948625.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria)
#29: RNA chain 5S rRNA / 5S ribosomal RNA


Mass: 38483.926 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / References: GenBank: 1845258627

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

#6: Protein 30S ribosomal protein S2 /


Mass: 26781.670 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / References: UniProt: P0A7V0
#7: Protein 30S ribosomal protein S3 / / Small ribosomal subunit protein uS3


Mass: 26031.316 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7V3
#8: Protein 30S ribosomal protein S4 / / Small ribosomal subunit protein uS4


Mass: 23514.199 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7V8
#9: Protein 30S ribosomal protein S5 / / Small ribosomal subunit protein uS5


Mass: 17629.398 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7W1
#10: Protein 30S ribosomal protein S6 /


Mass: 15727.512 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / References: UniProt: P02358
#11: Protein 30S ribosomal protein S7 /


Mass: 20055.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / References: UniProt: P02359
#12: Protein 30S ribosomal protein S8 / / Small ribosomal subunit protein uS8


Mass: 14146.557 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7W7
#13: Protein 30S ribosomal protein S9 / / Small ribosomal subunit protein uS9


Mass: 14886.270 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7X3
#14: Protein 30S ribosomal protein S10 / / Small ribosomal subunit protein uS10 / Transcription termination/antitermination protein NusE


Mass: 11755.597 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7R5
#15: Protein 30S ribosomal protein S11 / / Small ribosomal subunit protein uS11


Mass: 13871.959 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7R9
#16: Protein 30S ribosomal protein S12 / / Small ribosomal subunit protein uS12


Mass: 13814.249 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7S3
#17: Protein 30S ribosomal protein S13 / / Small ribosomal subunit protein uS13


Mass: 13128.467 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7S9
#18: Protein 30S ribosomal protein S14 / / Small ribosomal subunit protein uS14


Mass: 11606.560 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0AG59
#19: Protein 30S ribosomal protein S15 / / Small ribosomal subunit protein uS15


Mass: 10290.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0ADZ4
#20: 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 / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7T3
#21: Protein 30S ribosomal protein S17 / / Small ribosomal subunit protein uS17


Mass: 9724.491 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0AG63
#22: Protein 30S ribosomal protein S18 / / Small ribosomal subunit protein bS18


Mass: 9005.472 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7T7
#23: Protein 30S ribosomal protein S19 / / Small ribosomal subunit protein uS19


Mass: 10455.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P0A7U3
#24: Protein 30S ribosomal protein S20 /


Mass: 9708.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / References: UniProt: P0A7U7
#25: Protein 30S ribosomal protein S21 / / Small ribosomal subunit protein bS21


Mass: 8524.039 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli B (bacteria) / Strain: K12 / References: UniProt: P68679

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Non-polymers , 4 types, 11991 molecules

#54: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#55: Chemical...
ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 168 / Source method: obtained synthetically / Formula: K
#56: Chemical...
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 361 / Source method: obtained synthetically / Formula: Mg
#57: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 11461 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN

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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: 70S ribosomeRibosome / Type: RIBOSOME / Details: translating with P-site tRNA and mRNA / Entity ID: #1-#14, #16-#38, #40-#53 / Source: NATURAL
Molecular weightValue: 2.5 MDa / Experimental value: NO
Source (natural)Organism: Escherichia coli B (bacteria)
Buffer solutionpH: 7.4
Buffer component
IDConc.NameBuffer-ID
150 mMHEPES1
2100 mMKOAc1
325 mMMg(OAc)21
41 mMDTT1
SpecimenConc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: Fischione 1070 / Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/1
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 279 K

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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 FIELDBright-field microscopy / Nominal magnification: 165000 X / Nominal defocus max: 1500 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 5.2 sec. / Electron dose: 40 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 19449
Details: saved in EER format; 16 exposures per hole/stage movement. 11 in outer ring around the hole edge, 5 in inner ring around the hole center.
EM imaging opticsEnergyfilter name: TFS Selectris X / Energyfilter slit width: 10 eV
Image scansSampling size: 14 µm / Width: 4096 / Height: 4096

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Processing

SoftwareName: UCSF ChimeraX / Version: 1.4/v9 / Classification: model building / URL: https://www.rbvi.ucsf.edu/chimerax/ / Os: macOS / Type: package
EM software
IDNameCategory
2SerialEMimage acquisition
4CTFFINDCTF correction
5cryoSPARCCTF correction
8Cootmodel fitting
10cryoSPARCinitial Euler assignment
11cryoSPARCfinal Euler assignment
12cryoSPARCclassification
13cryoSPARC3D reconstruction
14PHENIXmodel refinement
CTF correctionDetails: per-particle CTF correction / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 1579392
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 1.55 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 506020 / Num. of class averages: 2 / Symmetry type: POINT
Atomic model buildingProtocol: FLEXIBLE FIT / Space: REAL
Atomic model buildingPDB-ID: 7K00

7k00


Accession code: 7K00 / Source name: PDB / Type: experimental model

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