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- PDB-5no2: RsgA-GDPNP bound to the 30S ribosomal subunit (RsgA assembly inte... -

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Basic information

Entry
Database: PDB / ID: 5no2
TitleRsgA-GDPNP bound to the 30S ribosomal subunit (RsgA assembly intermediate)
Components
  • (30S ribosomal protein ...) x 17
  • 16S ribosomal RNA
  • Small ribosomal subunit biogenesis GTPase RsgA
KeywordsRIBOSOME
Function / homology
Function and homology information


guanosine tetraphosphate binding / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides / misfolded RNA binding / Group I intron splicing / RNA folding / four-way junction DNA binding / negative regulation of translational initiation / regulation of mRNA stability ...guanosine tetraphosphate binding / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides / misfolded RNA binding / Group I intron splicing / RNA folding / four-way junction DNA binding / negative regulation of translational initiation / regulation of mRNA stability / mRNA regulatory element binding translation repressor activity / positive regulation of RNA splicing / transcription elongation factor complex / regulation of DNA-templated transcription elongation / DNA endonuclease activity / transcription antitermination / DNA-templated transcription termination / maintenance of translational fidelity / mRNA 5'-UTR binding / GDP binding / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / ribosome biogenesis / regulation of translation / ribosomal small subunit assembly / small ribosomal subunit / cytosolic small ribosomal subunit / cytoplasmic translation / tRNA binding / molecular adaptor activity / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / response to antibiotic / GTPase activity / mRNA binding / GTP binding / RNA binding / zinc ion binding / membrane / metal ion binding / cytosol / cytoplasm
Similarity search - Function
Ribosome biogenesis GTPase RsgA / RsgA GTPase domain / RsgA GTPase / EngC GTPase domain profile. / Circularly permuted (CP)-type guanine nucleotide-binding (G) domain / Circularly permuted (CP)-type guanine nucleotide-binding (G) domain profile. / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein S6, conserved site ...Ribosome biogenesis GTPase RsgA / RsgA GTPase domain / RsgA GTPase / EngC GTPase domain profile. / Circularly permuted (CP)-type guanine nucleotide-binding (G) domain / Circularly permuted (CP)-type guanine nucleotide-binding (G) domain profile. / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / 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 S9, bacterial/plastid / Ribosomal protein S4, bacterial-type / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / Ribosomal protein S16 / Ribosomal protein S16 domain superfamily / Ribosomal protein S16 / Ribosomal protein S15, bacterial-type / Ribosomal protein S6 / Ribosomal protein S6 / Ribosomal protein S6 superfamily / Ribosomal protein S12, bacterial-type / Translation elongation factor EF1B/ribosomal protein S6 / Ribosomal protein S18 / Ribosomal protein S18 / Ribosomal protein S18 superfamily / Ribosomal protein S10, conserved site / Ribosomal protein S10 signature. / Ribosomal protein S14, conserved site / Ribosomal protein S14 signature. / Ribosomal protein S15/S19, conserved site / Ribosomal protein S19 signature. / Ribosomal protein S10 / : / Ribosomal protein S19/S15 / Ribosomal protein S19/S15, superfamily / Ribosomal protein S19 / Ribosomal protein S5, N-terminal, conserved site / Ribosomal protein S5 signature. / Ribosomal protein S7, conserved site / Ribosomal protein S7 signature. / Ribosomal protein S5 / Ribosomal protein S17, conserved site / Ribosomal protein S17 signature. / S5 double stranded RNA-binding domain profile. / Ribosomal protein S5, N-terminal / Ribosomal protein S5, N-terminal domain / Ribosomal protein S5, C-terminal / Ribosomal protein S5, C-terminal domain / Ribosomal protein S13, conserved site / Ribosomal protein S13 signature. / Ribosomal protein S13 / 30s ribosomal protein S13, C-terminal / Ribosomal protein S13/S18 / Ribosomal protein S13 family profile. / Ribosomal protein S8 signature. / Ribosomal protein S4/S9 N-terminal domain / Ribosomal protein S4, conserved site / Ribosomal protein S4 signature. / Ribosomal protein S4/S9 N-terminal domain / Ribosomal protein S4/S9, N-terminal / Ribosomal protein S15 signature. / Ribosomal protein S14 / Ribosomal protein S14p/S29e / Ribosomal protein S4/S9 / Ribosomal protein S8 / Ribosomal protein S8 superfamily / Ribosomal protein S8 / S4 RNA-binding domain profile. / Ribosomal S11, conserved site / Ribosomal protein S11 signature. / Ribosomal protein S10p/S20e / Ribosomal protein S11 / Ribosomal protein S10 domain / Ribosomal protein S10 domain superfamily / Ribosomal protein S10p/S20e / Ribosomal protein S9, conserved site / Ribosomal protein S9 signature. / Ribosomal protein S13-like, H2TH / S4 RNA-binding domain / S4 domain / Ribosomal protein S11 / RNA-binding S4 domain / RNA-binding S4 domain superfamily / Ribosomal protein S12 signature. / Ribosomal protein S5/S7 / Ribosomal protein S7 domain / Ribosomal protein S7 domain superfamily / Ribosomal protein S7p/S5e
Similarity search - Domain/homology
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein uS11 ...PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / 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 uS4 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS17 / Small ribosomal subunit biogenesis GTPase RsgA
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
Escherichia coli K-12 (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.16 Å
AuthorsLopez-Alonso, J.P. / Kaminishi, T. / Kikuchi, T. / Hirata, Y. / Iturrioz, I. / Dhimole, N. / Schedlbauer, A. / Hase, Y. / Goto, S. / Kurita, D. ...Lopez-Alonso, J.P. / Kaminishi, T. / Kikuchi, T. / Hirata, Y. / Iturrioz, I. / Dhimole, N. / Schedlbauer, A. / Hase, Y. / Goto, S. / Kurita, D. / Muto, A. / Zhou, S. / Naoe, C. / Mills, D.J. / Gil-Carton, D. / Takemoto, C. / Himeno, H. / Fucini, P. / Connell, S.R.
CitationJournal: Nucleic Acids Res / Year: 2017
Title: RsgA couples the maturation state of the 30S ribosomal decoding center to activation of its GTPase pocket.
Authors: Jorge Pedro López-Alonso / Tatsuya Kaminishi / Takeshi Kikuchi / Yuya Hirata / Idoia Iturrioz / Neha Dhimole / Andreas Schedlbauer / Yoichi Hase / Simon Goto / Daisuke Kurita / Akira Muto / ...Authors: Jorge Pedro López-Alonso / Tatsuya Kaminishi / Takeshi Kikuchi / Yuya Hirata / Idoia Iturrioz / Neha Dhimole / Andreas Schedlbauer / Yoichi Hase / Simon Goto / Daisuke Kurita / Akira Muto / Shu Zhou / Chieko Naoe / Deryck J Mills / David Gil-Carton / Chie Takemoto / Hyouta Himeno / Paola Fucini / Sean R Connell /
Abstract: During 30S ribosomal subunit biogenesis, assembly factors are believed to prevent accumulation of misfolded intermediate states of low free energy that slowly convert into mature 30S subunits, ...During 30S ribosomal subunit biogenesis, assembly factors are believed to prevent accumulation of misfolded intermediate states of low free energy that slowly convert into mature 30S subunits, namely, kinetically trapped particles. Among the assembly factors, the circularly permuted GTPase, RsgA, plays a crucial role in the maturation of the 30S decoding center. Here, directed hydroxyl radical probing and single particle cryo-EM are employed to elucidate RsgA΄s mechanism of action. Our results show that RsgA destabilizes the 30S structure, including late binding r-proteins, providing a structural basis for avoiding kinetically trapped assembly intermediates. Moreover, RsgA exploits its distinct GTPase pocket and specific interactions with the 30S to coordinate GTPase activation with the maturation state of the 30S subunit. This coordination validates the architecture of the decoding center and facilitates the timely release of RsgA to control the progression of 30S biogenesis.
History
DepositionApr 10, 2017Deposition site: PDBE / Processing site: PDBE
Revision 1.0May 24, 2017Provider: repository / Type: Initial release
Revision 1.1Aug 2, 2017Group: Data collection / Derived calculations / Category: em_software / pdbx_struct_conn_angle / Item: _em_software.name
Revision 1.2Sep 13, 2017Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Apr 24, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / struct_conn / struct_conn_type
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _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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  • Deposited structure unit
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  • Superimposition on EM map
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Structure viewerMolecule:
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Assembly

Deposited unit
A: 16S ribosomal RNA
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
Z: Small ribosomal subunit biogenesis GTPase RsgA
hetero molecules


Theoretical massNumber of molelcules
Total (without water)733,04292
Polymers730,72919
Non-polymers2,31373
Water00
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area87020 Å2
ΔGint-1163 kcal/mol
Surface area285460 Å2
MethodPISA

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Components

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30S ribosomal protein ... , 17 types, 17 molecules DEFGHIJKLMNOPQRST

#2: 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 (strain K12) (bacteria) / References: UniProt: P0A7V8
#3: Protein 30S ribosomal protein S5 / Small ribosomal subunit protein uS5


Mass: 16361.878 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7W1
#4: Protein 30S ribosomal protein S6 / Small ribosomal subunit protein bS6


Mass: 12326.251 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P02358
#5: Protein 30S ribosomal protein S7 / Small ribosomal subunit protein uS7


Mass: 14543.850 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P02359
#6: 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 (strain K12) (bacteria) / References: UniProt: P0A7W7
#7: 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 / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7X3
#8: Protein 30S ribosomal protein S10 / Small ribosomal subunit protein uS10


Mass: 11325.117 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7R5
#9: 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 (strain K12) (bacteria) / References: UniProt: P0A7R9
#10: Protein/peptide 30S ribosomal protein S12 / Small ribosomal subunit protein uS12


Mass: 1641.981 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7S3
#11: 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 / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7S9
#12: 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 (strain K12) (bacteria) / References: UniProt: P0AG59
#13: 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 / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0ADZ4
#14: 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 (strain K12) (bacteria) / References: UniProt: P0A7T3
#15: 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 (strain K12) (bacteria) / References: UniProt: P0AG63
#16: Protein 30S ribosomal protein S18 / Small ribosomal subunit protein bS18


Mass: 6466.477 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7T7
#17: 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 / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7U3
#18: Protein 30S ribosomal protein S20 / Small ribosomal subunit protein bS20


Mass: 9577.268 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (strain K12) (bacteria) / References: UniProt: P0A7U7

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RNA chain / Protein , 2 types, 2 molecules AZ

#19: Protein Small ribosomal subunit biogenesis GTPase RsgA


Mass: 34850.457 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (strain K12) (bacteria)
Gene: rsgA, engC, yjeQ, b4161, JW4122 / Plasmid: p7XNH3 / Production host: Escherichia coli BL21(DE3)
References: UniProt: P39286, Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides
#1: RNA chain 16S ribosomal RNA


Mass: 497404.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 1108560344

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Non-polymers , 3 types, 73 molecules

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


Mass: 24.305 Da / Num. of mol.: 71 / Source method: obtained synthetically / Formula: Mg
#21: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#22: Chemical ChemComp-GNP / PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER


Mass: 522.196 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H17N6O13P3
Comment: GppNHp, GMPPNP, energy-carrying molecule analogue*YM

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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: 30S ribosomal subunit bound by RsgA / Type: RIBOSOME / Entity ID: #1-#19 / Source: MULTIPLE SOURCES
Molecular weightExperimental value: NO
Source (natural)Organism: Escherichia coli K12 (bacteria)
Buffer solutionpH: 7.8
Buffer component
IDConc.NameFormulaBuffer-ID
110 mMHEPESC8H18N2O4S1
210 mMMagnesium chlorideMgCl21
3150 mMAmmonium acetateC2H7NO21
46 mM2-mercaptoethanolC2H6OS1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R2/1
VitrificationInstrument: FEI VITROBOT MARK II / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 278 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: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Nominal magnification: 59000 X / Calibrated magnification: 101000 X / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm
Specimen holderCryogen: NITROGEN
Image recordingAverage exposure time: 1.5 sec. / Electron dose: 2.3 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON II (4k x 4k) / Num. of real images: 3408
Image scansWidth: 2048 / Height: 2048 / Movie frames/image: 13

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Processing

SoftwareName: PHENIX / Classification: refinement
EM software
IDNameVersionCategoryDetails
2EPUimage acquisition
4CTFFIND4CTF correction
7UCSF Chimeramodel fittingrigid docking
8Cootmodel fittingmanual fitting
10RELION1.4initial Euler assignment
11RELION2final Euler assignment
12RELION2classification
13RELION23D reconstruction
14PHENIXdev-2621-000model refinement
15REFMAC5.8.0155model refinementinitial jelly body
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 878976
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 5.16 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 61908 / Symmetry type: POINT
Atomic model buildingProtocol: BACKBONE TRACE
Displacement parametersBiso max: 348.57 Å2 / Biso mean: 157.4923 Å2 / Biso min: 29.92 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00253327
ELECTRON MICROSCOPYf_angle_d0.52279630
ELECTRON MICROSCOPYf_chiral_restr0.02910134
ELECTRON MICROSCOPYf_plane_restr0.0054402
ELECTRON MICROSCOPYf_dihedral_angle_d11.8628598

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