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- EMDB-51620: 30S mRNA delivery complex (consensus) -

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Basic information

Entry
Database: EMDB / ID: EMD-51620
Title30S mRNA delivery complex (consensus)
Map data30S-RNAP delivery consensus
Sample
  • Complex: 30S ribosomal subunit
    • Protein or peptide: x 21 types
    • RNA: x 2 types
  • RNA: x 1 types
  • Ligand: x 1 types
KeywordsTranscription / translation / coupling / Ribosome. / RIBOSOME
Function / homology
Function and homology information


positive regulation of cytoplasmic translation / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / negative regulation of cytoplasmic translation / four-way junction DNA binding / regulation of mRNA stability / positive regulation of RNA splicing ...positive regulation of cytoplasmic translation / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / negative regulation of cytoplasmic translation / four-way junction DNA binding / regulation of mRNA stability / positive regulation of RNA splicing / regulation of DNA-templated transcription elongation / transcription elongation factor complex / DNA endonuclease activity / transcription antitermination / maintenance of translational fidelity / mRNA 5'-UTR binding / ribosome biogenesis / regulation of translation / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytoplasmic translation / tRNA binding / single-stranded RNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / response to antibiotic / mRNA binding / RNA binding / zinc ion binding / membrane / cytoplasm / cytosol
Similarity search - Function
: / Ribosomal protein S1 / Ribosomal protein S1-like / S1 domain profile. / Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S1-like RNA-binding domain / S1 RNA binding domain / Ribosomal protein S21 superfamily ...: / Ribosomal protein S1 / Ribosomal protein S1-like / S1 domain profile. / Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S1-like RNA-binding domain / S1 RNA binding domain / Ribosomal protein S21 superfamily / S1 domain / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein S21 / Ribosomal protein S3, bacterial-type / Ribosomal protein S19, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S11, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein S4, bacterial-type / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein S9, bacterial/plastid / 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 / K Homology domain / K homology RNA-binding domain / Ribosomal protein S2 signature 2. / Ribosomal protein S3, conserved site / Ribosomal protein S3 signature. / Ribosomal protein S10, conserved site / Ribosomal protein S10 signature. / Ribosomal protein S14, conserved site / Ribosomal protein S14 signature. / Ribosomal protein S2 signature 1. / KH domain / Type-2 KH domain profile. / K Homology domain, type 2 / Ribosomal protein S3, C-terminal / Ribosomal protein S3, C-terminal domain / Ribosomal protein S3, C-terminal domain superfamily / Ribosomal protein S15/S19, conserved site / Ribosomal protein S19 signature. / Ribosomal protein S10 / Ribosomal protein S5, N-terminal, conserved site / Ribosomal protein S5 signature. / Ribosomal protein S19/S15 / Ribosomal protein S19/S15, superfamily / Ribosomal protein S19 / Ribosomal protein S2, conserved site / Ribosomal protein S2 / Ribosomal protein S2, flavodoxin-like domain superfamily / Ribosomal protein S2 / Ribosomal protein S7, conserved site / Ribosomal protein S7 signature. / : / K homology domain superfamily, prokaryotic type / Ribosomal protein S5 / S5 double stranded RNA-binding domain profile. / Ribosomal protein S5, N-terminal / Ribosomal protein S5, C-terminal / Ribosomal protein S5, N-terminal domain / Ribosomal protein S5, C-terminal domain / Ribosomal protein S17, conserved site / Ribosomal protein S17 signature. / 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 S14 / Ribosomal protein S14p/S29e / Ribosomal protein S4/S9 N-terminal domain / Ribosomal protein S4, conserved site / Ribosomal protein S15 signature. / Ribosomal protein S4 signature. / Ribosomal protein S4/S9 N-terminal domain / Ribosomal protein S4/S9, N-terminal
Similarity search - Domain/homology
Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS4 / 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 uS3 / Small ribosomal subunit protein uS4 / 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 uS2 / 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 protein bS1 / Small ribosomal subunit protein bS21 / Small ribosomal subunit protein bS6
Similarity search - Component
Biological speciesEscherichia coli K-12 (bacteria) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.5 Å
AuthorsRahil H / Weixlbaumer A / Webster MW
Funding supportEuropean Union, France, United States, United Kingdom, 6 items
OrganizationGrant numberCountry
European Research Council (ERC)679734European Union
Agence Nationale de la Recherche (ANR)ANR-10-LABX-0030-INRT France
Agence Nationale de la Recherche (ANR)ANR-10-IDEX-0002-02 France
European Molecular Biology Organization (EMBO)European Union
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM131922 United States
Wellcome Trust203149 United Kingdom
CitationJournal: Science / Year: 2024
Title: Molecular basis of mRNA delivery to the bacterial ribosome.
Authors: Michael W Webster / Adrien Chauvier / Huma Rahil / Andrea Graziadei / Kristine Charles / Nataliya Miropolskaya / Maria Takacs / Charlotte Saint-André / Juri Rappsilber / Nils G Walter / Albert Weixlbaumer /
Abstract: Protein synthesis begins with the formation of a ribosome-messenger RNA (mRNA) complex. In bacteria, the small ribosomal subunit (30) is recruited to many mRNAs through base pairing with the Shine- ...Protein synthesis begins with the formation of a ribosome-messenger RNA (mRNA) complex. In bacteria, the small ribosomal subunit (30) is recruited to many mRNAs through base pairing with the Shine-Dalgarno (SD) sequence and RNA binding by ribosomal protein bS1. Translation can initiate on nascent mRNAs, and RNA polymerase (RNAP) can promote the recruitment of the pioneering 30. Here, we examined 30 recruitment to nascent mRNAs using cryo-electron microscopy, single-molecule fluorescence colocalization, and in-cell cross-linking mass spectrometry. We show that bS1 delivers the mRNA to the ribosome for SD duplex formation and 30 activation. Additionally, bS1 and RNAP stimulate translation initiation. Our work provides a mechanistic framework for how the SD duplex, ribosomal proteins, and RNAP cooperate in 30 recruitment to mRNAs and establish transcription-translation coupling.
History
DepositionSep 20, 2024-
Header (metadata) releaseNov 20, 2024-
Map releaseNov 20, 2024-
UpdateJul 9, 2025-
Current statusJul 9, 2025Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_51620.png

Downloads & links

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Map

FileDownload / File: emd_51620.map.gz / Format: CCP4 / Size: 824 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation30S-RNAP delivery consensus
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.84 Å/pix.
x 600 pix.
= 504. Å		0.84 Å/pix.
x 600 pix.
= 504. Å		0.84 Å/pix.
x 600 pix.
= 504. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.84 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.248
Minimum - Maximum-6.5925894 - 11.755922
Average (Standard dev.)0.0006371493 (±0.17489976)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions600600600
Spacing600600600
CellA=B=C: 503.99997 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : 30S ribosomal subunit

EntireName: 30S ribosomal subunit
Components
  • Complex: 30S ribosomal subunit
    • Protein or peptide: 30S ribosomal protein S1
    • Protein or peptide: 30S ribosomal protein S2
    • Protein or peptide: Small ribosomal subunit protein uS3
    • Protein or peptide: Small ribosomal subunit protein uS4
    • Protein or peptide: 30S ribosomal protein S5
    • Protein or peptide: Small ribosomal subunit protein bS6
    • 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: Small ribosomal subunit protein uS15
    • 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: 30S ribosomal protein S21
    • RNA: tRNA(fmet) P-site
    • RNA: mRNA
  • RNA: 16S ribosomal RNA
  • Ligand: MAGNESIUM ION

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Supramolecule #1: 30S ribosomal subunit

SupramoleculeName: 30S ribosomal subunit / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #2-#24
Source (natural)Organism: Escherichia coli K-12 (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: 499.505125 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 AGGGGUACCU 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 UCACCUCCUU

GENBANK: GENBANK: CP064678.1

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Macromolecule #23: tRNA(fmet) P-site

MacromoleculeName: tRNA(fmet) P-site / type: rna / ID: 23 / Number of copies: 1
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 24.832918 KDa
SequenceString:
CGCGGGG(4SU)GG AGCAGCCUGG (H2U)AGCUCGUCG GG(OMC)UCAUAAC CCGAAGAUCG UCGG(5MU)(PSU)CAAA UCCGGCCCC CGCAACCA

GENBANK: GENBANK: LN832404.1

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Macromolecule #24: mRNA

MacromoleculeName: mRNA / type: rna / ID: 24 / Number of copies: 1
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 17.060258 KDa
SequenceString:
ACAAAGGAGG UAUUCAUGUU CACAUACACA UAUAUAGACA CAAACGGCGC GCG

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Macromolecule #2: 30S ribosomal protein S1

MacromoleculeName: 30S ribosomal protein S1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 61.238887 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString: MTESFAQLFE ESLKEIETRP GSIVRGVVVA IDKDVVLVDA GLKSESAIPA EQFKNAQGEL EIQVGDEVDV ALDAVEDGFG ETLLSREKA KRHEAWITLE KAYEDAETVT GVINGKVKGG FTVELNGIRA FLPGSLVDVR PVRDTLHLEG KELEFKVIKL D QKRNNVVV ...String:
MTESFAQLFE ESLKEIETRP GSIVRGVVVA IDKDVVLVDA GLKSESAIPA EQFKNAQGEL EIQVGDEVDV ALDAVEDGFG ETLLSREKA KRHEAWITLE KAYEDAETVT GVINGKVKGG FTVELNGIRA FLPGSLVDVR PVRDTLHLEG KELEFKVIKL D QKRNNVVV SRRAVIESEN SAERDQLLEN LQEGMEVKGI VKNLTDYGAF VDLGGVDGLL HITDMAWKRV KHPSEIVNVG DE ITVKVLK FDRERTRVSL GLKQLGEDPW VAIAKRYPEG TKLTGRVTNL TDYGCFVEIE EGVEGLVHVS EMDWTNKNIH PSK VVNVGD VVEVMVLDID EERRRISLGL KQCKANPWQQ FAETHNKGDR VEGKIKSITD FGIFIGLDGG IDGLVHLSDI SWNV AGEEA VREYKKGDEI AAVVLQVDAE RERISLGVKQ LAEDPFNNWV ALNKKGAIVT GKVTAVDAKG ATVELADGVE GYLRA SEAS RDRVEDATLV LSVGDEVEAK FTGVDRKNRA ISLSVRAKDE ADEKDAIATV NKQEDANFSN NAMAEAFKAA KGE

UniProtKB: Small ribosomal subunit protein bS1

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Macromolecule #3: 30S ribosomal protein S2

MacromoleculeName: 30S ribosomal protein S2 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 26.78167 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString: MATVSMRDML KAGVHFGHQT RYWNPKMKPF IFGARNKVHI INLEKTVPMF NEALAELNKI ASRKGKILFV GTKRAASEAV KDAALSCDQ FFVNHRWLGG MLTNWKTVRQ SIKRLKDLET QSQDGTFDKL TKKEALMRTR ELEKLENSLG GIKDMGGLPD A LFVIDADH ...String:
MATVSMRDML KAGVHFGHQT RYWNPKMKPF IFGARNKVHI INLEKTVPMF NEALAELNKI ASRKGKILFV GTKRAASEAV KDAALSCDQ FFVNHRWLGG MLTNWKTVRQ SIKRLKDLET QSQDGTFDKL TKKEALMRTR ELEKLENSLG GIKDMGGLPD A LFVIDADH EHIAIKEANN LGIPVFAIVD TNSDPDGVDF VIPGNDDAIR AVTLYLGAVA ATVREGRSQD LASQAEESFV EA E

UniProtKB: Small ribosomal subunit protein uS2

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Macromolecule #4: Small ribosomal subunit protein uS3

MacromoleculeName: Small ribosomal subunit protein uS3 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 26.031316 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString: MGQKVHPNGI RLGIVKPWNS TWFANTKEFA DNLDSDFKVR QYLTKELAKA SVSRIVIERP AKSIRVTIHT ARPGIVIGKK GEDVEKLRK VVADIAGVPA QINIAEVRKP ELDAKLVADS ITSQLERRVM FRRAMKRAVQ NAMRLGAKGI KVEVSGRLGG A EIARTEWY ...String:
MGQKVHPNGI RLGIVKPWNS TWFANTKEFA DNLDSDFKVR QYLTKELAKA SVSRIVIERP AKSIRVTIHT ARPGIVIGKK GEDVEKLRK VVADIAGVPA QINIAEVRKP ELDAKLVADS ITSQLERRVM FRRAMKRAVQ NAMRLGAKGI KVEVSGRLGG A EIARTEWY REGRVPLHTL RADIDYNTSE AHTTYGVIGV KVWIFKGEIL GGMAAVEQPE KPAAQPKKQQ RKGRK

UniProtKB: Small ribosomal subunit protein uS3

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Macromolecule #5: Small ribosomal subunit protein uS4

MacromoleculeName: Small ribosomal subunit protein uS4 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 23.514199 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString: MARYLGPKLK LSRREGTDLF LKSGVRAIDT KCKIEQAPGQ HGARKPRLSD YGVQLREKQK VRRIYGVLER QFRNYYKEAA RLKGNTGEN LLALLEGRLD NVVYRMGFGA TRAEARQLVS HKAIMVNGRV VNIASYQVSP NDVVSIREKA KKQSRVKAAL E LAEQREKP ...String:
MARYLGPKLK LSRREGTDLF LKSGVRAIDT KCKIEQAPGQ HGARKPRLSD YGVQLREKQK VRRIYGVLER QFRNYYKEAA RLKGNTGEN LLALLEGRLD NVVYRMGFGA TRAEARQLVS HKAIMVNGRV VNIASYQVSP NDVVSIREKA KKQSRVKAAL E LAEQREKP TWLEVDAGKM EGTFKRKPER SDLSADINEH LIVELYSK

UniProtKB: Small ribosomal subunit protein uS4

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Macromolecule #6: 30S ribosomal protein S5

MacromoleculeName: 30S ribosomal protein S5 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 16.475037 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
ELQEKLIAVN RVSKTVKGGR IFSFTALTVV GDGNGRVGFG YGKAREVPAA IQKAMEKARR NMINVALNNG TLQHPVKGVH TGSRVFMQP ASEGTGIIAG GAMRAVLEVA GVHNVLAKAY GSTNPINVVR ATIDGLENMN SPEMVAAKRG KSVEEIL

UniProtKB: Small ribosomal subunit protein uS5

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Macromolecule #7: Small ribosomal subunit protein bS6

MacromoleculeName: Small ribosomal subunit protein bS6 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 15.197032 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MRHYEIVFMV HPDQSEQVPG MIERYTAAIT GAEGKIHRLE DWGRRQLAYP INKLHKAHYV LMNVEAPQEV IDELETTFRF NDAVIRSMV MRTKHAVTEA SPMVKAKDER RERRDDFANE TADDADAGDS EE

UniProtKB: Small ribosomal subunit protein bS6

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Macromolecule #8: 30S ribosomal protein S7

MacromoleculeName: 30S ribosomal protein S7 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 17.637445 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MPRRRVIGQR KILPDPKFGS ELLAKFVNIL MVDGKKSTAE SIVYSALETL AQRSGKSELE AFEVALENVR PTVEVKSRRV GGSTYQVPV EVRPVRRNAL AMRWIVEAAR KRGDKSMALR LANELSDAAE NKGTAVKKRE DVHRMAEANK AFAHYRW

UniProtKB: Small ribosomal subunit protein uS7

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Macromolecule #9: 30S ribosomal protein S8

MacromoleculeName: 30S ribosomal protein S8 / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 14.146557 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MSMQDPIADM LTRIRNGQAA NKAAVTMPSS KLKVAIANVL KEEGFIEDFK VEGDTKPELE LTLKYFQGKA VVESIQRVSR PGLRIYKRK DELPKVMAGL GIAVVSTSKG VMTDRAARQA GLGGEIICYV A

UniProtKB: Small ribosomal subunit protein uS8

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Macromolecule #10: 30S ribosomal protein S9

MacromoleculeName: 30S ribosomal protein S9 / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 14.88627 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MAENQYYGTG RRKSSAARVF IKPGNGKIVI NQRSLEQYFG RETARMVVRQ PLELVDMVEK LDLYITVKGG GISGQAGAIR HGITRALME YDESLRSELR KAGFVTRDAR QVERKKVGLR KARRRPQFSK R

UniProtKB: Small ribosomal subunit protein uS9

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Macromolecule #11: 30S ribosomal protein S10

MacromoleculeName: 30S ribosomal protein S10 / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 11.755597 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MQNQRIRIRL KAFDHRLIDQ ATAEIVETAK RTGAQVRGPI PLPTRKERFT VLISPHVNKD ARDQYEIRTH LRLVDIVEPT EKTVDALMR LDLAAGVDVQ ISLG

UniProtKB: Small ribosomal subunit protein uS10

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Macromolecule #12: 30S ribosomal protein S11

MacromoleculeName: 30S ribosomal protein S11 / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 13.870975 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MAKAPIRARK RVRKQVSDGV AHIHASFNNT IVTITDRQGN ALGWATAGGS GFRGSRKSTP FAAQVAAERC ADAVKEYGIK NLEVMVKGP GPGRESTIRA LNAAGFRITN ITDVTPIPHN GCRPPKKRRV

UniProtKB: Small ribosomal subunit protein uS11

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Macromolecule #13: 30S ribosomal protein S12

MacromoleculeName: 30S ribosomal protein S12 / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 13.814249 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MATVNQLVRK PRARKVAKSN VPALEACPQK RGVCTRVYTT TPKKPNSALR KVCRVRLTNG FEVTSYIGGE GHNLQEHSVI LIRGGRVK(D2T) LPGVRYHTVR GALDCSGVKD RKQARSKYGV KRPKA

UniProtKB: Small ribosomal subunit protein uS12

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Macromolecule #14: 30S ribosomal protein S13

MacromoleculeName: 30S ribosomal protein S13 / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 13.128467 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MARIAGINIP DHKHAVIALT SIYGVGKTRS KAILAAAGIA EDVKISELSE GQIDTLRDEV AKFVVEGDLR REISMSIKRL MDLGCYRGL RHRRGLPVRG QRTKTNARTR KGPRKPIKK

UniProtKB: Small ribosomal subunit protein uS13

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Macromolecule #15: 30S ribosomal protein S14

MacromoleculeName: 30S ribosomal protein S14 / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 11.60656 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MAKQSMKARE VKRVALADKY FAKRAELKAI ISDVNASDED RWNAVLKLQT LPRDSSPSRQ RNRCRQTGRP HGFLRKFGLS RIKVREAAM RGEIPGLKKA SW

UniProtKB: Small ribosomal subunit protein uS14

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Macromolecule #16: Small ribosomal subunit protein uS15

MacromoleculeName: Small ribosomal subunit protein uS15 / type: protein_or_peptide / ID: 16 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 10.290816 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MSLSTEATAK IVSEFGRDAN DTGSTEVQVA LLTAQINHLQ GHFAEHKKDH HSRRGLLRMV SQRRKLLDYL KRKDVARYTQ LIERLGLRR

UniProtKB: Small ribosomal subunit protein uS15

+
Macromolecule #17: 30S ribosomal protein S16

MacromoleculeName: 30S ribosomal protein S16 / type: protein_or_peptide / ID: 17 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 9.207572 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MVTIRLARHG AKKRPFYQVV VADSRNARNG RFIERVGFFN PIASEKEEGT RLDLDRIAHW VGQGATISDR VAALIKEVNK AA

UniProtKB: Small ribosomal subunit protein bS16

+
Macromolecule #18: 30S ribosomal protein S17

MacromoleculeName: 30S ribosomal protein S17 / type: protein_or_peptide / ID: 18 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 9.724491 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MTDKIRTLQG RVVSDKMEKS IVVAIERFVK HPIYGKFIKR TTKLHVHDEN NECGIGDVVE IRECRPLSKT KSWTLVRVVE KAVL

UniProtKB: Small ribosomal subunit protein uS17

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Macromolecule #19: 30S ribosomal protein S18

MacromoleculeName: 30S ribosomal protein S18 / type: protein_or_peptide / ID: 19 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 9.005472 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MARYFRRRKF CRFTAEGVQE IDYKDIATLK NYITESGKIV PSRITGTRAK YQRQLARAIK RARYLSLLPY TDRHQ

UniProtKB: Small ribosomal subunit protein bS18

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Macromolecule #20: 30S ribosomal protein S19

MacromoleculeName: 30S ribosomal protein S19 / type: protein_or_peptide / ID: 20 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 10.455355 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MPRSLKKGPF IDLHLLKKVE KAVESGDKKP LRTWSRRSTI FPNMIGLTIA VHNGRQHVPV FVTDEMVGHK LGEFAPTRTY RGHAADKKA KKK

UniProtKB: Small ribosomal subunit protein uS19

+
Macromolecule #21: 30S ribosomal protein S20

MacromoleculeName: 30S ribosomal protein S20 / type: protein_or_peptide / ID: 21 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 9.708464 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MANIKSAKKR AIQSEKARKH NASRRSMMRT FIKKVYAAIE AGDKAAAQKA FNEMQPIVDR QAAKGLIHKN KAARHKANLT AQINKLA

UniProtKB: Small ribosomal subunit protein bS20

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Macromolecule #22: 30S ribosomal protein S21

MacromoleculeName: 30S ribosomal protein S21 / type: protein_or_peptide / ID: 22 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 8.524039 KDa
Recombinant expressionOrganism: Escherichia coli K-12 (bacteria)
SequenceString:
MPVIKVRENE PFDVALRRFK RSCEKAGVLA EVRRREFYEK PTTERKRAKA SAVKRHAKKL ARENARRTRL Y

UniProtKB: Small ribosomal subunit protein bS21

+
Macromolecule #25: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 25 / Number of copies: 120 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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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: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 QUANTUM (4k x 4k) / Average electron dose: 49.95 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

6ztj

Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.5 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 256024
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION

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