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- EMDB-3661: RsgA-GDPNP bound to the 30S ribosomal subunit (RsgA assembly inte... -

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Basic information

Entry
Database: EMDB / ID: EMD-3661
TitleRsgA-GDPNP bound to the 30S ribosomal subunit (RsgA assembly intermediate)
Map dataPostprocessed merged map. rlnFinalResolution 5.391515_rlnBfactorUsedForSharpening -100.000000
Sample
  • Complex: 30S ribosomal subunit bound by RsgA
    • RNA: x 1 types
    • Protein or peptide: x 18 types
  • Ligand: x 3 types
Keywordsribosome
Function / homology
Function and homology information


guanosine tetraphosphate binding / ornithine decarboxylase inhibitor activity / Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides / transcription antitermination factor activity, RNA binding / 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 / Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides / transcription antitermination factor activity, RNA binding / 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 / ribosomal small subunit biogenesis / GDP binding / 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 S9, conserved site / Ribosomal protein S9 signature. / Ribosomal protein S10 domain / Ribosomal protein S10 domain superfamily / Ribosomal protein S10p/S20e / Ribosomal protein S13-like, H2TH / S4 RNA-binding domain / S4 domain / Ribosomal protein S11 / RNA-binding S4 domain / Ribosomal protein S12 signature. / RNA-binding S4 domain superfamily / Ribosomal protein S5/S7 / Ribosomal protein S7 domain / Ribosomal protein S7 domain superfamily / Ribosomal protein S7p/S5e
Similarity search - Domain/homology
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 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 K12 (bacteria) / Escherichia coli K-12 (bacteria) / Escherichia coli (strain K12) (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 5.16 Å
AuthorsLopez-Alonso JP / Kaminishi T
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, 2017-
Header (metadata) releaseMay 24, 2017-
Map releaseMay 24, 2017-
UpdateApr 24, 2024-
Current statusApr 24, 2024Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.07
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  • Surface view colored by height
  • Surface level: 0.07
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  • Surface view with fitted model
  • Atomic models: PDB-5no2
  • Surface level: 0.07
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_3661.png

Downloads & links

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Map

FileDownload / File: emd_3661.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationPostprocessed merged map. rlnFinalResolution 5.391515_rlnBfactorUsedForSharpening -100.000000
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.39 Å/pix.
x 256 pix.
= 355.84 Å		1.39 Å/pix.
x 256 pix.
= 355.84 Å		1.39 Å/pix.
x 256 pix.
= 355.84 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.39 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.07 / Movie #1: 0.07
Minimum - Maximum-0.12647314 - 0.3478071
Average (Standard dev.)0.0020150589 (±0.015929395)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 355.84 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.391.391.39
M x/y/z256256256
origin x/y/z0.0000.0000.000
length x/y/z355.840355.840355.840
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS256256256
D min/max/mean-0.1260.3480.002

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Supplemental data

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Half map: half volume 1- note corrected pixel size is...

Fileemd_3661_half_map_1.map
Annotationhalf volume 1- note corrected pixel size is 1.39 -use 1.39 for post processing
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_3661_half_map_2.map
Projections & Slices
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Projections

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Histogram

Histogram (log scale)

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Sample components

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Entire : 30S ribosomal subunit bound by RsgA

EntireName: 30S ribosomal subunit bound by RsgA
Components
  • Complex: 30S ribosomal subunit bound by RsgA
    • RNA: 16S ribosomal RNA
    • Protein or peptide: 30S ribosomal protein S4
    • Protein or peptide: 30S ribosomal protein S5
    • Protein or peptide: 30S ribosomal protein S6
    • Protein or peptide: 30S ribosomal protein S7
    • Protein or peptide: 30S ribosomal protein S8
    • Protein or peptide: 30S ribosomal protein S9
    • Protein or peptide: 30S ribosomal protein S10
    • Protein or peptide: 30S ribosomal protein S11
    • Protein or peptide: 30S ribosomal protein S12
    • Protein or peptide: 30S ribosomal protein S13
    • Protein or peptide: 30S ribosomal protein S14
    • Protein or peptide: 30S ribosomal protein S15
    • Protein or peptide: 30S ribosomal protein S16
    • Protein or peptide: 30S ribosomal protein S17
    • Protein or peptide: 30S ribosomal protein S18
    • Protein or peptide: 30S ribosomal protein S19
    • Protein or peptide: 30S ribosomal protein S20
    • Protein or peptide: Small ribosomal subunit biogenesis GTPase RsgA
  • Ligand: MAGNESIUM ION
  • Ligand: ZINC ION
  • Ligand: PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER

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Supramolecule #1: 30S ribosomal subunit bound by RsgA

SupramoleculeName: 30S ribosomal subunit bound by RsgA / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#19
Source (natural)Organism: Escherichia coli K12 (bacteria)

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Macromolecule #1: 16S ribosomal RNA

MacromoleculeName: 16S ribosomal RNA / type: rna / ID: 1 / Number of copies: 1
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 497.404969 KDa
SequenceString: AAAUUGAAGA GUUUGAUCAU GGCUCAGAUU GAACGCUGGC GGCAGGCCUA ACACAUGCAA GUCGAACGGU AACAGGAAGA AGCUUGCUU CUUUGCUGAC GAGUGGCGGA CGGGUGAGUA AUGUCUGGGA AACUGCCUGA UGGAGGGGGA UAACUACUGG A AACGGUAG ...String:
AAAUUGAAGA GUUUGAUCAU GGCUCAGAUU GAACGCUGGC GGCAGGCCUA ACACAUGCAA GUCGAACGGU AACAGGAAGA AGCUUGCUU CUUUGCUGAC GAGUGGCGGA CGGGUGAGUA AUGUCUGGGA AACUGCCUGA UGGAGGGGGA UAACUACUGG A AACGGUAG CUAAUACCGC AUAACGUCGC AAGACCAAAG AGGGGGACCU UCGGGCCUCU UGCCAUCGGA UGUGCCCAGA UG GGAUUAG CUAGUAGGUG GGGUAACGGC UCACCUAGGC GACGAUCCCU AGCUGGUCUG AGAGGAUGAC CAGCCACACU GGA ACUGAG ACACGGUCCA GACUCCUACG GGAGGCAGCA GUGGGGAAUA UUGCACAAUG GGCGCAAGCC UGAUGCAGCC AUGC CGCGU GUAUGAAGAA GGCCUUCGGG UUGUAAAGUA CUUUCAGCGG GGAGGAAGGG AGUAAAGUUA AUACCUUUGC UCAUU GACG UUACCCGCAG AAGAAGCACC GGCUAACUCC G(PSU)GCCAGCAG CC(G7M)CGGUAAU ACGGAGGGUG CAAGCGUU A AUCGGAAUUA CUGGGCGUAA AGCGCACGCA GGCGGUUUGU UAAGUCAGAU GUGAAAUCCC CGGGCUCAAC CUGGGAACU GCAUCUGAUA CUGGCAAGCU UGAGUCUCGU AGAGGGGGGU AGAAUUCCAG GUGUAGCGGU GAAAUGCGUA GAGAUCUGGA GGAAUACCG GUGGCGAAGG CGGCCCCCUG GACGAAGACU GACGCUCAGG UGCGAAAGCG UGGGGAGCAA ACAGGAUUAG A UACCCUGG UAGUCCACGC CGUAAACGAU GUCGACUUGG AGGUUGUGCC CUUGAGGCGU GGCUUCCGGA GCUAACGCGU UA AGUCGAC CGCCUGGGGA GUACGGCCGC AAGGUUAAAA CUCAAAUGAA UUGACGGGGG CCCGCACAAG CGGUGGAGCA UGU GGUUUA AUUCGAU(2MG)(5MC)A ACGCGAAGAA CCUUACCUGG UCUUGACAUC CACGGAAGUU UUCAGAGAUG AGAAUG UGC CUUCGGGAAC CGUGAGACAG GUGCUGCAUG GCUGUCGUCA GCUCGUGUUG UGAAAUGUUG GGUUAAGUCC CGCAACG AG CGCAACCCUU AUCCUUUGUU GCCAGCGGUC CGGCCGGGAA CUCAAAGGAG ACUGCCAGUG AUAAACUGGA GGAAGGUG G GGAUGACGUC AAGUCAUCAU G(2MG)CCCUUACG ACCAGGGCUA CACACGUGCU ACAAUGGCGC AUACAAAGAG AAGCG ACCU CGCGAGAGCA AGCGGACCUC AUAAAGUGCG UCGUAGUCCG GAUUGGAGUC UGCAACUCGA CUCCAUGAAG UCGGAA UCG CUAGUAAUCG UGGAUCAGAA UGCCACGGUG AAUACGUUCC CGGGCCUUGU ACACACCG(4OC)C CGU(5MC)ACACC AUGGGAGUGG GUUGCAAAAG AAGUAGGUAG CUUAACCUUC GGGAGGGCGC UUACCACUUU GUGAUUCAUG ACUGGGGUGA AGUCG(UR3)AAC AAGGUAACCG UAGG(2MG)G(MA6)(MA6)CC UGCGGUUGGA UCA

GENBANK: GENBANK: CP018103.1

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Macromolecule #2: 30S ribosomal protein S4

MacromoleculeName: 30S ribosomal protein S4 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 23.383002 KDa
SequenceString: ARYLGPKLKL SRREGTDLFL KSGVRAIDTK CKIEQAPGQH GARKPRLSDY GVQLREKQKV RRIYGVLERQ FRNYYKEAAR LKGNTGENL LALLEGRLDN VVYRMGFGAT RAEARQLVSH KAIMVNGRVV NIASYQVSPN DVVSIREKAK KQSRVKAALE L AEQREKPT ...String:
ARYLGPKLKL SRREGTDLFL KSGVRAIDTK CKIEQAPGQH GARKPRLSDY GVQLREKQKV RRIYGVLERQ FRNYYKEAAR LKGNTGENL LALLEGRLDN VVYRMGFGAT RAEARQLVSH KAIMVNGRVV NIASYQVSPN DVVSIREKAK KQSRVKAALE L AEQREKPT WLEVDAGKME GTFKRKPERS DLSADINEHL IVELYSK

UniProtKB: Small ribosomal subunit protein uS4

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Macromolecule #3: 30S ribosomal protein S5

MacromoleculeName: 30S ribosomal protein S5 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 16.361878 KDa
SequenceString:
ELQEKLIAVN RVSKTVKGGR IFSFTALTVV GDGNGRVGFG YGKAREVPAA IQKAMEKARR NMINVALNNG TLQHPVKGVH TGSRVFMQP ASEGTGIIAG GAMRAVLEVA GVHNVLAKAY GSTNPINVVR ATIDGLENMN SPEMVAAKRG KSVEEI

UniProtKB: Small ribosomal subunit protein uS5

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Macromolecule #4: 30S ribosomal protein S6

MacromoleculeName: 30S ribosomal protein S6 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 12.326251 KDa
SequenceString:
MRHYEIVFMV HPDQSEQVPG MIERYTAAIT GAEGKIHRLE DWGRRQLAYP INKLHKAHYV LMNVEAPQEV IDELETTFRF NDAVIRSMV MRTKHAVTEA SPMVKAK

UniProtKB: Small ribosomal subunit protein bS6

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Macromolecule #5: 30S ribosomal protein S7

MacromoleculeName: 30S ribosomal protein S7 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 14.54385 KDa
SequenceString:
PRRRVIGQRK ILPDPKFGSE LLAKFVNILM VDGKKSTAES IVYSALETLA QRSGKSELEA FEVALENVRP TVEVKSRRVG GSTYQVPVE VRPVRRNALA MRWIVEAARK RGDKSMALRL ANELSDAAEN K

UniProtKB: Small ribosomal subunit protein uS7

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Macromolecule #6: 30S ribosomal protein S8

MacromoleculeName: 30S ribosomal protein S8 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 14.015361 KDa
SequenceString:
SMQDPIADML TRIRNGQAAN KAAVTMPSSK LKVAIANVLK EEGFIEDFKV EGDTKPELEL TLKYFQGKAV VESIQRVSRP GLRIYKRKD ELPKVMAGLG IAVVSTSKGV MTDRAARQAG LGGEIICYVA

UniProtKB: Small ribosomal subunit protein uS8

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Macromolecule #7: 30S ribosomal protein S9

MacromoleculeName: 30S ribosomal protein S9 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 14.554882 KDa
SequenceString:
NQYYGTGRRK SSAARVFIKP GNGKIVINQR SLEQYFGRET ARMVVRQPLE LVDMVEKLDL YITVKGGGIS GQAGAIRHGI TRALMEYDE SLRSELRKAG FVTRDARQVE RKKVGLRKAR RRPQFSKR

UniProtKB: Small ribosomal subunit protein uS9

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Macromolecule #8: 30S ribosomal protein S10

MacromoleculeName: 30S ribosomal protein S10 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 11.325117 KDa
SequenceString:
QRIRIRLKAF DHRLIDQATA EIVETAKRTG AQVRGPIPLP TRKERFTVLI SPHVNKDARD QYEIRTHLRL VDIVEPTEKT VDALMRLDL AAGVDVQISL

UniProtKB: Small ribosomal subunit protein uS10

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Macromolecule #9: 30S ribosomal protein S11

MacromoleculeName: 30S ribosomal protein S11 / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 12.4872 KDa
SequenceString:
RKQVSDGVAH IHASFNNTIV TITDRQGNAL GWATAGGSGF RGSRKSTPFA AQVAAERCAD AVKEYGIKNL EVMVKGPGPG RESTIRALN AAGFRITNIT DVTPIPHNGC RPPKKRRV

UniProtKB: Small ribosomal subunit protein uS11

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Macromolecule #10: 30S ribosomal protein S12

MacromoleculeName: 30S ribosomal protein S12 / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 1.641981 KDa
SequenceString:
ATVNQLVRKP RARK

UniProtKB: Small ribosomal subunit protein uS12

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Macromolecule #11: 30S ribosomal protein S13

MacromoleculeName: 30S ribosomal protein S13 / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 12.625753 KDa
SequenceString:
ARIAGINIPD HKHAVIALTS IYGVGKTRSK AILAAAGIAE DVKISELSEG QIDTLRDEVA KFVVEGDLRR EISMSIKRLM DLGCYRGLR HRRGLPVRGQ RTKTNARTRK GPRKP

UniProtKB: Small ribosomal subunit protein uS13

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Macromolecule #12: 30S ribosomal protein S14

MacromoleculeName: 30S ribosomal protein S14 / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 11.475364 KDa
SequenceString:
AKQSMKAREV KRVALADKYF AKRAELKAII SDVNASDEDR WNAVLKLQTL PRDSSPSRQR NRCRQTGRPH GFLRKFGLSR IKVREAAMR GEIPGLKKAS W

UniProtKB: Small ribosomal subunit protein uS14

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Macromolecule #13: 30S ribosomal protein S15

MacromoleculeName: 30S ribosomal protein S15 / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 10.159621 KDa
SequenceString:
SLSTEATAKI VSEFGRDAND TGSTEVQVAL LTAQINHLQG HFAEHKKDHH SRRGLLRMVS QRRKLLDYLK RKDVARYTQL IERLGLRR

UniProtKB: Small ribosomal subunit protein uS15

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Macromolecule #14: 30S ribosomal protein S16

MacromoleculeName: 30S ribosomal protein S16 / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 9.207572 KDa
SequenceString:
MVTIRLARHG AKKRPFYQVV VADSRNARNG RFIERVGFFN PIASEKEEGT RLDLDRIAHW VGQGATISDR VAALIKEVNK AA

UniProtKB: Small ribosomal subunit protein bS16

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Macromolecule #15: 30S ribosomal protein S17

MacromoleculeName: 30S ribosomal protein S17 / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 9.263946 KDa
SequenceString:
KIRTLQGRVV SDKMEKSIVV AIERFVKHPI YGKFIKRTTK LHVHDENNEC GIGDVVEIRE CRPLSKTKSW TLVRVVEKAV

UniProtKB: Small ribosomal subunit protein uS17

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Macromolecule #16: 30S ribosomal protein S18

MacromoleculeName: 30S ribosomal protein S18 / type: protein_or_peptide / ID: 16 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 6.466477 KDa
SequenceString:
EIDYKDIATL KNYITESGKI VPSRITGTRA KYQRQLARAI KRARYLSLLP YTDRH

UniProtKB: Small ribosomal subunit protein bS18

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Macromolecule #17: 30S ribosomal protein S19

MacromoleculeName: 30S ribosomal protein S19 / type: protein_or_peptide / ID: 17 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 9.057626 KDa
SequenceString:
RSLKKGPFID LHLLKKVEKA VESGDKKPLR TWSRRSTIFP NMIGLTIAVH NGRQHVPVFV TDEMVGHKLG EFAPTRTYR

UniProtKB: Small ribosomal subunit protein uS19

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Macromolecule #18: 30S ribosomal protein S20

MacromoleculeName: 30S ribosomal protein S20 / type: protein_or_peptide / ID: 18 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 9.577268 KDa
SequenceString:
ANIKSAKKRA IQSEKARKHN ASRRSMMRTF IKKVYAAIEA GDKAAAQKAF NEMQPIVDRQ AAKGLIHKNK AARHKANLTA QINKLA

UniProtKB: Small ribosomal subunit protein bS20

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Macromolecule #19: Small ribosomal subunit biogenesis GTPase RsgA

MacromoleculeName: Small ribosomal subunit biogenesis GTPase RsgA / type: protein_or_peptide / ID: 19 / Number of copies: 1 / Enantiomer: LEVO
EC number: Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Molecular weightTheoretical: 34.850457 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3)
SequenceString: NLFGEPDEGI VISRFGMHAD VESADGDVHR CNIRRTIRSL VTGDRVVWRP GKPAAEGVNV KGIVEAVHER TSVLTRPDFY DGVKPIAAN IDQIVIVSAI LPELSLNIID RYLVACETLQ IEPIIVLNKI DLLDDEGMAF VNEQMDIYRN IGYRVLMVSS H TQDGLKPL ...String:
NLFGEPDEGI VISRFGMHAD VESADGDVHR CNIRRTIRSL VTGDRVVWRP GKPAAEGVNV KGIVEAVHER TSVLTRPDFY DGVKPIAAN IDQIVIVSAI LPELSLNIID RYLVACETLQ IEPIIVLNKI DLLDDEGMAF VNEQMDIYRN IGYRVLMVSS H TQDGLKPL EEALTGRISI FAGQSGVGKS SLLNALLGLQ KEILTNDISD NSGLGQHTTT AARLYHFPHG GDVIDSPGVR EF GLWHLEP EQITQGFVEF HDYLGLCKYR DCKHDTDPGC AIREAVEEGK IAETRFENYH RILESMAQVK TRKNFS

UniProtKB: Small ribosomal subunit biogenesis GTPase RsgA

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Macromolecule #20: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 20 / Number of copies: 71 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #21: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 21 / Number of copies: 1 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Macromolecule #22: PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER

MacromoleculeName: PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER / type: ligand / ID: 22 / Number of copies: 1 / Formula: GNP
Molecular weightTheoretical: 522.196 Da
Chemical component information

ChemComp-GNP:
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER / GppNHp, GMPPNP, energy-carrying molecule analogue*YM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.8
Component:
ConcentrationFormulaName
10.0 mMC8H18N2O4SHEPES
10.0 mMMgCl2Magnesium chloride
150.0 mMC2H7NO2Ammonium acetate
6.0 mMC2H6OS2-mercaptoethanol
GridModel: Quantifoil R2/1 / Material: COPPER / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 50 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.02 kPa
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 278 K / Instrument: FEI VITROBOT MARK II

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON II (4k x 4k) / Detector mode: INTEGRATING / Digitization - Dimensions - Width: 2048 pixel / Digitization - Dimensions - Height: 2048 pixel / Number real images: 3408 / Average exposure time: 1.5 sec. / Average electron dose: 2.3 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsCalibrated magnification: 101000 / Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 59000
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 878976
Startup modelType of model: OTHER
Details: Previous model of an empty 30S obtained in our laboratory
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 5.16 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 2.0) / Number images used: 61908
Initial angle assignmentType: PROJECTION MATCHING / Software - Name: RELION (ver. 1.4)
Final angle assignmentType: PROJECTION MATCHING / Software - Name: RELION (ver. 2.0)
Final 3D classificationNumber classes: 6 / Software - Name: RELION (ver. 2.0)
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementProtocol: BACKBONE TRACE
Output model

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

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