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- EMDB-75389: E.coli 50S ribosomal subunit bound to compound 48a -

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Basic information

Entry
Database: EMDB / ID: EMD-75389
TitleE.coli 50S ribosomal subunit bound to compound 48a
Map data
Sample
  • Complex: 50S ribosomal subunit
    • RNA: x 2 types
    • Protein or peptide: x 29 types
  • Ligand: x 5 types
Keywords50S subunit / antibiotic / RIBOSOME
Function / homology
Function and homology information


transcriptional attenuation / endoribonuclease inhibitor activity / positive regulation of ribosome biogenesis / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / cytosolic ribosome assembly / ribosome assembly ...transcriptional attenuation / endoribonuclease inhibitor activity / positive regulation of ribosome biogenesis / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / cytosolic ribosome assembly / ribosome assembly / assembly of large subunit precursor of preribosome / regulation of cell growth / DNA-templated transcription termination / response to radiation / mRNA 5'-UTR binding / large ribosomal subunit / transferase activity / ribosome binding / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / ribonucleoprotein complex / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / DNA binding / RNA binding / zinc ion binding / cytoplasm / cytosol
Similarity search - Function
Ribosomal protein L11, bacterial-type / Ribosomal protein L25, short-form / Ribosomal protein L11, conserved site / Ribosomal protein L11 signature. / Ribosomal protein L9 signature. / Ribosomal protein L16 signature 1. / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / Ribosomal protein L9, bacteria/chloroplast / Ribosomal protein L11, N-terminal ...Ribosomal protein L11, bacterial-type / Ribosomal protein L25, short-form / Ribosomal protein L11, conserved site / Ribosomal protein L11 signature. / Ribosomal protein L9 signature. / Ribosomal protein L16 signature 1. / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / Ribosomal protein L9, bacteria/chloroplast / Ribosomal protein L11, N-terminal / Ribosomal protein L9, C-terminal / Ribosomal protein L11, N-terminal domain / Ribosomal protein L9, C-terminal domain / Ribosomal protein L21, conserved site / : / Ribosomal protein L21 signature. / Ribosomal protein L9, C-terminal domain superfamily / Ribosomal protein L11/L12 / Ribosomal protein L11, C-terminal / Ribosomal protein L11, C-terminal domain superfamily / Ribosomal protein L11/L12, N-terminal domain superfamily / Ribosomal protein L11/L12 / Ribosomal protein L11, RNA binding domain / Ribosomal protein L16 signature 2. / Ribosomal protein L16, conserved site / Ribosomal protein L17 signature. / Ribosomal L25p family / Ribosomal protein L25 / Ribosomal protein L36 signature. / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / : / Ribosomal protein L28/L24 superfamily / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L32p, bacterial type / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L9 / Ribosomal protein L9, N-terminal domain superfamily / Ribosomal protein L9, N-terminal / Ribosomal protein L9, N-terminal domain / Ribosomal protein L28 / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L18, bacterial-type / : / Ribosomal protein L6, bacterial-type / Ribosomal protein L5, bacterial-type / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / : / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein L20 signature. / Ribosomal protein L34, conserved site / Ribosomal protein L34 signature. / Ribosomal protein L14P, bacterial-type / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L35 / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L33 / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L33 / Ribosomal L28 family / Ribosomal protein L33 superfamily / Ribosomal protein L28/L24 / Ribosomal protein L30, bacterial-type / L28p-like / Ribosomal protein L16 / Ribosomal protein L20 / Ribosomal protein L20 / Ribosomal protein L20, C-terminal / Ribosomal protein L19 / Ribosomal protein L19 / Ribosomal protein L19 superfamily / : / Large ribosomal subunit protein uL24, C-terminal domain / Ribosomal protein L17 / Ribosomal protein L17 superfamily / Ribosomal protein L17 / Ribosomal protein L27 / Ribosomal L27 protein / Ribosomal protein L34 / Ribosomal protein L34 / Ribosomal protein L24 / Ribosomal L32p protein family / Ribosomal protein L21 / Ribosomal protein L32p / Ribosomal protein L21-like / L21-like superfamily / Ribosomal prokaryotic L21 protein / Ribosomal protein L3, bacterial/organelle-type / Ribosomal protein L15, bacterial-type
Similarity search - Domain/homology
Large ribosomal subunit protein bL28 / Large ribosomal subunit protein bL36 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein uL11 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein uL15 ...Large ribosomal subunit protein bL28 / Large ribosomal subunit protein bL36 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein uL11 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL9 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein bL17 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein bL25
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.49 Å
AuthorsRaskar T / Lee I
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM145238 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM148184 United States
CitationJournal: Eur J Med Chem / Year: 2026
Title: Structure-based design and synthesis of group A streptogramins that bind to the nascent peptide exit tunnel of the ribosome.
Authors: Isabel J Lee / Qi Li / Tushar Raskar / Jenna Pellegrino / Andrew K Ecker / Sara Y Howard / James S Fraser / Ian B Seiple /
Abstract: Natural products and their derivatives have long served as powerful tools for treating bacterial infections, but the rise of antibiotic resistance threatens their continued effectiveness. Targeted ...Natural products and their derivatives have long served as powerful tools for treating bacterial infections, but the rise of antibiotic resistance threatens their continued effectiveness. Targeted structural modification of existing classes of antibiotics is an effective strategy to overcome resistance and extend clinical utility. The development of group A streptogramins that overcome acetyltransferase resistance, a pervasive resistance mechanism to the class, is an example of successful implementation of this strategy. However, the synthetic chemistry to reach these new analogs was limited in its ability to access modifications at the C4 position on the scaffold, a promising modification site that produced the most potent streptogramin to date. Here, we report the development of a modified route to group A streptogramins that enables access to a broad diversity of functionality at C4. Using cryo-EM data to guide structural modifications, we synthesize several series of C4-modified group A streptogramins with sidechains designed to make binding contacts with the exit tunnel of the ribosome. We identify multiple analogs that are active against multidrug-resistant bacteria, including strains that are resistant to macrolides, β-lactams, vancomycin, and first-generation streptogramins. We structurally characterize the binding of two analogs to the bacterial ribosome, revealing new π-stacking interactions between the C4 sidechain and the non-canonical U1782-U2586 base pair. These findings demonstrate how structure-guided drug design can drive the development of next-generation antibiotics and increase the therapeutic potential of the streptogramin class.
History
DepositionFeb 1, 2026-
Header (metadata) releaseJun 10, 2026-
Map releaseJun 10, 2026-
UpdateJun 10, 2026-
Current statusJun 10, 2026Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_75389.png

Downloads & links

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Map

FileDownload / File: emd_75389.map.gz / Format: CCP4 / Size: 775.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
0.73 Å/pix.
x 588 pix.
= 429.24 Å		0.73 Å/pix.
x 588 pix.
= 429.24 Å		0.73 Å/pix.
x 588 pix.
= 429.24 Å

Surface

Projections

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Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.73 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.35
Minimum - Maximum-1.3435258 - 2.266278
Average (Standard dev.)-0.00048113964 (±0.05668669)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions588588588
Spacing588588588
CellA=B=C: 429.24002 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_75389_half_map_1.map
Projections & Slices
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Density Histograms

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Histogram (log scale)

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Half map: #1

Fileemd_75389_half_map_2.map
Projections & Slices
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Sample components

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Entire : 50S ribosomal subunit

EntireName: 50S ribosomal subunit
Components
  • Complex: 50S ribosomal subunit
    • RNA: 23S ribosomal RNA
    • RNA: 5S ribosomal RNA
    • Protein or peptide: 50S ribosomal protein L2
    • Protein or peptide: 50S ribosomal protein L3
    • Protein or peptide: Large ribosomal subunit protein uL4
    • Protein or peptide: Large ribosomal subunit protein uL5
    • Protein or peptide: Large ribosomal subunit protein uL6
    • Protein or peptide: Large ribosomal subunit protein bL9
    • Protein or peptide: Large ribosomal subunit protein uL11
    • Protein or peptide: Large ribosomal subunit protein uL13
    • Protein or peptide: Large ribosomal subunit protein uL14
    • Protein or peptide: Large ribosomal subunit protein uL15
    • Protein or peptide: 50S ribosomal protein L16
    • Protein or peptide: Large ribosomal subunit protein bL17
    • Protein or peptide: Large ribosomal subunit protein uL18
    • Protein or peptide: Large ribosomal subunit protein bL19
    • Protein or peptide: 50S ribosomal protein L20
    • Protein or peptide: Ribosomal protein L21
    • Protein or peptide: 50S ribosomal protein L22
    • Protein or peptide: 50S ribosomal protein L23
    • Protein or peptide: 50S ribosomal protein L24
    • Protein or peptide: Large ribosomal subunit protein bL25
    • Protein or peptide: 50S ribosomal protein L27
    • Protein or peptide: 50S ribosomal protein L28
    • Protein or peptide: Large ribosomal subunit protein uL29
    • Protein or peptide: 50S ribosomal protein L30
    • Protein or peptide: 50S ribosomal protein L32
    • Protein or peptide: Large ribosomal subunit protein bL33
    • Protein or peptide: 50S ribosomal protein L34
    • Protein or peptide: Large ribosomal subunit protein bL35
    • Protein or peptide: 50S ribosomal protein L36
  • Ligand: MAGNESIUM ION
  • Ligand: (3R,4R,5E,11E,14R,16R,23R,26aR)-16-fluoro-14-hydroxy-12-methyl-3-(propan-2-yl)-4-{5-[4-(pyridin-4-yl)-1H-1,2,3-triazol-1-yl]pentyl}-3,4,8,9,10,13,14,15,16,17,24,25,26,26a-tetradecahydro-1H,7H,22H-21,18-(azeno)pyrrolo[2,1-c][1,8,4,19]dioxadiazacyclotetracosine-1,7,22-trione
  • Ligand: SODIUM ION
  • Ligand: ZINC ION
  • Ligand: water

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Supramolecule #1: 50S ribosomal subunit

SupramoleculeName: 50S ribosomal subunit / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#31
Source (natural)Organism: Escherichia coli (E. coli)

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Macromolecule #1: 23S ribosomal RNA

MacromoleculeName: 23S ribosomal RNA / type: rna / ID: 1 / Number of copies: 1
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 941.811562 KDa
SequenceString: GGUUAAGCGA CUAAGCGUAC ACGGUGGAUG CCCUGGCAGU CAGAGGCGAU GAAGGACGUG CUAAUCUGCG AUAAGCGUCG GUAAGGUGA UAUGAACCGU UAUAACCGGC GAUUUCCGAA UGGGGAAACC CAGUGUGUUU CGACACACUA UCAUUAACUG A AUCCAUAG ...String:
GGUUAAGCGA CUAAGCGUAC ACGGUGGAUG CCCUGGCAGU CAGAGGCGAU GAAGGACGUG CUAAUCUGCG AUAAGCGUCG GUAAGGUGA UAUGAACCGU UAUAACCGGC GAUUUCCGAA UGGGGAAACC CAGUGUGUUU CGACACACUA UCAUUAACUG A AUCCAUAG GUUAAUGAGG CGAACCGGGG GAACUGAAAC AUCUAAGUAC CCCGAGGAAA AGAAAUCAAC CGAGAUUCCC CC AGUAGCG GCGAGCGAAC GGGGAGCAGC CCAGAGCCUG AAUCAGUGUG UGUGUUAGUG GAAGCGUCUG GAAAGGCGCG CGA UACAGG GUGACAGCCC CGUACACAAA AAUGCACAUG CUGUGAGCUC GAUGAGUAGG GCGGGACACG UGGUAUCCUG UCUG AAUAU GGGGGGACCA UCCUCCAAGG CUAAAUACUC CUGACUGACC GAUAGUGAAC CAGUACCGUG AGGGAAAGGC GAAAA GAAC CCCGGCGAGG GGAGUGAAAA AGAACCUGAA ACCGUGUACG UACAAGCAGU GGGAGCACGC UUAGGCGUGU GACUGC GUA CCUUUUGUAU AAUGGGUCAG CGACUUAUAU UCUGUAGCAA GGUUAACCGA AUAGGGGAGC CGAAGGGAAA CCGAGUC UU AACUGGGCGU UAAGUUGCAG GGUAUAGACC CGAAACCCGG UGAUCUAGCC AUGGGCAGGU UGAAGGUUGG GUAACACU A ACUGGAGGAC CGAACCGACU AAU(1MG)(PSU)(5MU)GAAA AAUUAGCGGA UGACUUGUGG CUGGGGGUGA AAGGCCA AU CAAACCGGGA GAUAGCUGGU UCUCCCCGAA AGCUAUUUAG GUAGCGCCUC GUGAAUUCAU CUCCGGGGGU AGAGCACU G UUUCGGCAAG GGGGUCAUCC CGACUUACCA ACCCGAUGCA AACUGCGAAU ACCGGAGAAU GUUAUCACGG GAGACACAC GGCGGG(PSU)GCU AACGUCCGUC GUGAAGAGGG AAACAACCCA GACCGCCAGC UAAGGUCCCA AAGUCAUGGU UAAGUG GGA AACGAUGUGG GAAGGCCCAG ACAGCCAGGA UGUUGGCUUA GAAGCAGCCA UCAUUUAAAG AAAGCGUAAU AGCUCAC UG GUCGAGUCGG CCUGCGCGGA AGAUGUAACG GGGCUAAACC AUGCACCGAA GCUGCGGCAG CGACGCUUAU GCGUUGUU G GGUAGGGGAG CGUUCUGUAA GCCUGCGAAG GUGUGCUGUG AGGCAUGCUG GAGGUAUCAG AAGUGCGAAU GCUGACAUA AGUAACGAUA AAGCGGGUGA AAAGCCCGCU CGCCGGAAGA CCAAGGGUUC CUGUCCAACG UUAAUCGGGG CAGGGUGAGU CGACCCCUA AGGCGAGGCC GAAAGGCGUA GUCGAUGGGA AACAGGUUAA UAUUCCUGUA CUUGGUGUUA CUGCGAAGGG G GGACGGAG AAGGCUAUGU UGGCCGGGCG ACGGUUGUCC CGGUUUAAGC GUGUAGGCUG GUUUUCCAGG CAAAUCCGGA AA AUCAAGG CUGAGGCGUG AUGACGAGGC ACUACGGUGC UGAAGCAACA AAUGCCCUGC UUCCAGGAAA AGCCUCUAAG CAU CAGGUA ACAUCAAAUC GUACCCCAAA CCGACAC(6MZ)GG UGGUCAGGUA GAGAAUACCA AGGCGCUUGA GAGAACUCGG GUGAAGGAA CUAGGCAAAA UGGUGCCGUA ACUUCGGGAG AAGGCACGCU GAUAUGUAGG UGAGGUCCCU CGCGGAUGGA G CUGAAAUC AGUCGAAGAU ACCAGCUGGC UGCAACUGUU UAUUAAAAAC ACAGCACUGU GCAAACACGA AAGUGGACGU AU ACGGUGU GACGCCU(2MG)CC CGGUGCCGGA AGGUUAAUUG AUGGGGUUAG CGCAAGCGAA GCUCUUGAUC GAAGCCCCG GUAAACGGCG GCCG(PSU)AAC(3TD)A (PSU)AACGGUCCU AAGGUAGCGA AA(5MU)UCCUUGU CGGGUAAGUU CCGA C(5MC)UGC ACGAAUGGCG UAAUGAUGGC CAGGCUGUCU CCACCCGAGA CUCAGUGAAA UUGAACUCGC UGUG(6MZ)AG AU GCAGUGUACC CGCGGCAAGA CGGAAAGACC CCGU(G7M)AACCU UUACUAUAGC UUGACACUGA ACAUUGAGCC UUGA UGUGU AGGAUAGGUG GGAGGCUUUG AAGUGUGGAC GCCAGUCUGC AUGGAGCCGA CCUUGAAAUA CCACCCUUUA AUGUU UGAU GUUCUAACGU UGACCCGUAA UCCGGGUUGC GGACAGUGUC UGGUGGGUAG UUUGACUG(OMG)G GCGGUCUCCU CC UAAAGAG UAACGGAGGA GCACGAAGGU UGGCUAAUCC UGGUCGGACA UCAGGAGGUU AGUGCAAUGG CAUAAGCCAG CUU GACUGC GAGCGUGACG GCGCGAGCAG GUGCGAAAGC AGGUCAUAGU GAUCCGGUGG UUCUGAAUGG AAGGGCCAUC GCUC AACGG AUAAAAGGUA CUCCG(2MG)GGA(H2U) AACAGGC(PSU)GA UACCGCCCAA GAGUUCAUAU CGACGGCGGU GUU UGGCA(OMC) CUCG(2MA)(PSU)GUCG GCUCAUCACA UCCUGGGGCU GAAGUAGGUC CCAAGGGUAU GGC(OMU)GUUC G CCAUUUAAAG UGGUACGCGA GC(PSU)GGGUUUA GAACGUCGUG AGACAG(PSU)(PSU)CG GUCCCUAUCU GCCGUGG GC GCUGGAGAAC UGAGGGGGGC UGCUCCUAGU ACGAGAGGAC CGGAGUGGAC GCAUCACUGG UGUUCGGGUU GUCAUGCC A AUGGCACUGC CCGGUAGCUA AAUGCGGAAG AGAUAAGUGC UGAAAGCAUC UAAGCACGAA ACUUGCCCCG AGAUGAGUU CUCCCUGACC CUUUAAGGGU CCUGAAGGAA CGUUGAAGAC GACGACGUUG AUAGGCCGGG UGUGUAAGCG CAGCGAUGCG UUGAGCUAA CCGGUACUAA UGAACCGUGA GGCUUAACCU U

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Macromolecule #2: 5S ribosomal RNA

MacromoleculeName: 5S ribosomal RNA / type: rna / ID: 2 / Number of copies: 1
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 38.79009 KDa
SequenceString:
UGCCUGGCGG CCGUAGCGCG GUGGUCCCAC CUGACCCCAU GCCGAACUCA GAAGUGAAAC GCCGUAGCGC CGAUGGUAGU GUGGGGUCU CCCCAUGCGA GAGUAGGGAA CUGCCAGGCA U

GENBANK: GENBANK: CP024273.1

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Macromolecule #3: 50S ribosomal protein L2

MacromoleculeName: 50S ribosomal protein L2 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 29.923619 KDa
SequenceString: MAVVKCKPTS PGRRHVVKVV NPELHKGKPF APLLEKNSKS GGRNNNGRIT TRHIGGGHKQ AYRIVDFKRN KDGIPAVVER LEYDPNRSA NIALVLYKDG ERRYILAPKG LKAGDQIQSG VDAAIKPGNT LPMRNIPVGS TVHNVEMKPG KGGQLARSAG T YVQIVARD ...String:
MAVVKCKPTS PGRRHVVKVV NPELHKGKPF APLLEKNSKS GGRNNNGRIT TRHIGGGHKQ AYRIVDFKRN KDGIPAVVER LEYDPNRSA NIALVLYKDG ERRYILAPKG LKAGDQIQSG VDAAIKPGNT LPMRNIPVGS TVHNVEMKPG KGGQLARSAG T YVQIVARD GAYVTLRLRS GEMRKVEADC RATLGEVGNA EHMLRVLGKA GAARWRGVRP TVRGTAMNPV DHPHGGGEGR NF GKHPVTP WGVQTKGKKT RSNKRTDKFI VRRRSK

UniProtKB: Large ribosomal subunit protein uL2

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Macromolecule #4: 50S ribosomal protein L3

MacromoleculeName: 50S ribosomal protein L3 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 22.277535 KDa
SequenceString: MIGLVGKKVG MTRIFTEDGV SIPVTVIEVE ANRVTQVKDL ANDGYRAIQV TTGAKKANRV TKPEAGHFAK AGVEAGRGLW EFRLAEGEE FTVGQSISVE LFADVKKVDV TGTSKGKGFA GTVKRWNFRT QDATHGNSLS HRVPGSIGQN QTPGKVFKGK K MAGQMGNE ...String:
MIGLVGKKVG MTRIFTEDGV SIPVTVIEVE ANRVTQVKDL ANDGYRAIQV TTGAKKANRV TKPEAGHFAK AGVEAGRGLW EFRLAEGEE FTVGQSISVE LFADVKKVDV TGTSKGKGFA GTVKRWNFRT QDATHGNSLS HRVPGSIGQN QTPGKVFKGK K MAGQMGNE RVTVQSLDVV RVDAERNLLL VKGAVPGATG SDLIVKPAVK A

UniProtKB: Large ribosomal subunit protein uL3

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Macromolecule #5: Large ribosomal subunit protein uL4

MacromoleculeName: Large ribosomal subunit protein uL4 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 22.121566 KDa
SequenceString: MELVLKDAQS ALTVSETTFG RDFNEALVHQ VVVAYAAGAR QGTRAQKTRA EVTGSGKKPW RQKGTGRARS GSIKSPIWRS GGVTFAARP QDHSQKVNKK MYRGALKSIL SELVRQDRLI VVEKFSVEAP KTKLLAQKLK DMALEDVLII TGELDENLFL A ARNLHKVD ...String:
MELVLKDAQS ALTVSETTFG RDFNEALVHQ VVVAYAAGAR QGTRAQKTRA EVTGSGKKPW RQKGTGRARS GSIKSPIWRS GGVTFAARP QDHSQKVNKK MYRGALKSIL SELVRQDRLI VVEKFSVEAP KTKLLAQKLK DMALEDVLII TGELDENLFL A ARNLHKVD VRDATGIDPV SLIAFDKVVM TADAVKQVEE MLA

UniProtKB: Large ribosomal subunit protein uL4

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Macromolecule #6: Large ribosomal subunit protein uL5

MacromoleculeName: Large ribosomal subunit protein uL5 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 20.333611 KDa
SequenceString:
MAKLHDYYKD EVVKKLMTEF NYNSVMQVPR VEKITLNMGV GEAIADKKLL DNAAADLAAI SGQKPLITKA RKSVAGFKIR QGYPIGCKV TLRGERMWEF FERLITIAVP RIRDFRGLSA KSFDGRGNYS MGVREQIIFP EIDYDKVDRV RGLDITITTT A KSDEEGRA LLAAFDFPFR K

UniProtKB: Large ribosomal subunit protein uL5

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Macromolecule #7: Large ribosomal subunit protein uL6

MacromoleculeName: Large ribosomal subunit protein uL6 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 18.932791 KDa
SequenceString:
MSRVAKAPVV VPAGVDVKIN GQVITIKGKN GELTRTLNDA VEVKHADNTL TFGPRDGYAD GWAQAGTARA LLNSMVIGVT EGFTKKLQL VGVGYRAAVK GNVINLSLGF SHPVDHQLPA GITAECPTQT EIVLKGADKQ VIGQVAADLR AYRRPEPYKG K GVRYADEV VRTKEAKKK

UniProtKB: Large ribosomal subunit protein uL6

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Macromolecule #8: Large ribosomal subunit protein bL9

MacromoleculeName: Large ribosomal subunit protein bL9 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 15.78902 KDa
SequenceString:
MQVILLDKVA NLGSLGDQVN VKAGYARNFL VPQGKAVPAT KKNIEFFEAR RAELEAKLAE VLAAANARAE KINALETVTI ASKAGDEGK LFGSIGTRDI ADAVTAAGVE VAKSEVRLPN GVLRTTGEHE VSFQVHSEVF AKVIVNVVAE

UniProtKB: Large ribosomal subunit protein bL9

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Macromolecule #9: Large ribosomal subunit protein uL11

MacromoleculeName: Large ribosomal subunit protein uL11 / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 14.020303 KDa
SequenceString:
YVKLQVAAGM ANPSPPVGPA LGQQGVNIME FCKAFNAKTD SIEKGLPIPV VITVYADRSF TFVTKTPPAA VLLKKAAGIK SGSGKPNKD KVGKISRAQL QEIAQTKAAD MTGADIEAMT RSIEGTARSM GLVVE

UniProtKB: Large ribosomal subunit protein uL11

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Macromolecule #10: Large ribosomal subunit protein uL13

MacromoleculeName: Large ribosomal subunit protein uL13 / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 16.050606 KDa
SequenceString:
MKTFTAKPET VKRDWYVVDA TGKTLGRLAT ELARRLRGKH KAEYTPHVDT GDYIIVLNAD KVAVTGNKRT DKVYYHHTGH IGGIKQATF EEMIARRPER VIEIAVKGML PKGPLGRAMF RKLKVYAGNE HNHAAQQPQV LDI

UniProtKB: Large ribosomal subunit protein uL13

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Macromolecule #11: Large ribosomal subunit protein uL14

MacromoleculeName: Large ribosomal subunit protein uL14 / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 13.565067 KDa
SequenceString:
MIQEQTMLNV ADNSGARRVM CIKVLGGSHR RYAGVGDIIK ITIKEAIPRG KVKKGDVLKA VVVRTKKGVR RPDGSVIRFD GNACVLLNN NSEQPIGTRI FGPVTRELRS EKFMKIISLA PEVL

UniProtKB: Large ribosomal subunit protein uL14

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Macromolecule #12: Large ribosomal subunit protein uL15

MacromoleculeName: Large ribosomal subunit protein uL15 / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 15.008471 KDa
SequenceString:
MRLNTLSPAE GSKKAGKRLG RGIGSGLGKT GGRGHKGQKS RSGGGVRRGF EGGQMPLYRR LPKFGFTSRK AAITAEIRLS DLAKVEGGV VDLNTLKAAN IIGIQIEFAK VILAGEVTTP VTVRGLRVTK GARAAIEAAG GKIEE

UniProtKB: Large ribosomal subunit protein uL15

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Macromolecule #13: 50S ribosomal protein L16

MacromoleculeName: 50S ribosomal protein L16 / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 15.327261 KDa
SequenceString:
MLQPKRTKFR KMHKGRNRGL AQGTDVSFGS FGLKAVGRGR LTARQIEAAR RAMTRAVKRQ GKIWIRVFPD KPITEKPLAV (4D4)MGKGKGNV EYWVALIQPG KVLYEMDGVP EELAREAFKL AAAKLPIKTT FVTKTVM

UniProtKB: Large ribosomal subunit protein uL16

+
Macromolecule #14: Large ribosomal subunit protein bL17

MacromoleculeName: Large ribosomal subunit protein bL17 / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 14.393657 KDa
SequenceString:
MRHRKSGRQL NRNSSHRQAM FRNMAGSLVR HEIIKTTLPK AKELRRVVEP LITLAKTDSV ANRRLAFART RDNEIVAKLF NELGPRFAS RAGGYTRILK CGFRAGDNAP MAYIELVDRS EKAEAAAE

UniProtKB: Large ribosomal subunit protein bL17

+
Macromolecule #15: Large ribosomal subunit protein uL18

MacromoleculeName: Large ribosomal subunit protein uL18 / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 12.794668 KDa
SequenceString:
MDKKSARIRR ATRARRKLQE LGATRLVVHR TPRHIYAQVI APNGSEVLVA ASTVEKAIAE QLKYTGNKDA AAAVGKAVAE RALEKGIKD VSFDRSGFQY HGRVQALADA AREAGLQF

UniProtKB: Large ribosomal subunit protein uL18

+
Macromolecule #16: Large ribosomal subunit protein bL19

MacromoleculeName: Large ribosomal subunit protein bL19 / type: protein_or_peptide / ID: 16 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 13.159278 KDa
SequenceString:
MSNIIKQLEQ EQMKQDVPSF RPGDTVEVKV WVVEGSKKRL QAFEGVVIAI RNRGLHSAFT VRKISNGEGV ERVFQTHSPV VDSISVKRR GAVRKAKLYY LRERTGKAAR IKERLN

UniProtKB: Large ribosomal subunit protein bL19

+
Macromolecule #17: 50S ribosomal protein L20

MacromoleculeName: 50S ribosomal protein L20 / type: protein_or_peptide / ID: 17 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 13.528024 KDa
SequenceString:
MARVKRGVIA RARHKKILKQ AKGYYGARSR VYRVAFQAVI KAGQYAYRDR RQRKRQFRQL WIARINAAAR QNGISYSKFI NGLKKASVE IDRKILADIA VFDKVAFTAL VEKAKAALA

UniProtKB: Large ribosomal subunit protein bL20

+
Macromolecule #18: Ribosomal protein L21

MacromoleculeName: Ribosomal protein L21 / type: protein_or_peptide / ID: 18 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 11.586374 KDa
SequenceString:
MYAVFQSGGK QHRVSEGQTV RLEKLDIATG ETVEFAEVLM IANGEEVKIG VPFVDGGVIK AEVVAHGRGE KVKIVKFRRR KHYRKQQGH RQWFTDVKIT GISA

UniProtKB: Large ribosomal subunit protein bL21

+
Macromolecule #19: 50S ribosomal protein L22

MacromoleculeName: 50S ribosomal protein L22 / type: protein_or_peptide / ID: 19 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 12.253359 KDa
SequenceString:
METIAKHRHA RSSAQKVRLV ADLIRGKKVS QALDILTYTN KKAAVLVKKV LESAIANAEH NDGADIDDLK VTKIFVDEGP SMKRIMPRA KGRADRILKR TSHITVVVSD R

UniProtKB: Large ribosomal subunit protein uL22

+
Macromolecule #20: 50S ribosomal protein L23

MacromoleculeName: 50S ribosomal protein L23 / type: protein_or_peptide / ID: 20 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 11.22216 KDa
SequenceString:
MIREERLLKV LRAPHVSEKA STAMEKSNTI VLKVAKDATK AEIKAAVQKL FEVEVEVVNT LVVKGKVKRH GQRIGRRSDW KKAYVTLKE GQNLDFVGGA E

UniProtKB: Large ribosomal subunit protein uL23

+
Macromolecule #21: 50S ribosomal protein L24

MacromoleculeName: 50S ribosomal protein L24 / type: protein_or_peptide / ID: 21 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 11.33925 KDa
SequenceString:
MAAKIRRDDE VIVLTGKDKG KRGKVKNVLS SGKVIVEGIN LVKKHQKPVP ALNQPGGIVE KEAAIQVSNV AIFNAATGKA DRVGFRFED GKKVRFFKSN SETIK

UniProtKB: Large ribosomal subunit protein uL24

+
Macromolecule #22: Large ribosomal subunit protein bL25

MacromoleculeName: Large ribosomal subunit protein bL25 / type: protein_or_peptide / ID: 22 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 10.713465 KDa
SequenceString:
MFTINAEVRK EQGKGASRRL RAANKFPAII YGGKEAPLAI ELDHDKVMNM QAKAEFYSEV LTIVVDGKEI KVKAQDVQRH PYKPKLQHI DFVRA

UniProtKB: Large ribosomal subunit protein bL25

+
Macromolecule #23: 50S ribosomal protein L27

MacromoleculeName: 50S ribosomal protein L27 / type: protein_or_peptide / ID: 23 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 9.14654 KDa
SequenceString:
MAHKKAGGST RNGRDSEAKR LGVKRFGGES VLAGSIIVRQ RGTKFHAGAN VGCGRDHTLF AKADGKVKFE VKGPKNRKFI SIEAE

UniProtKB: Large ribosomal subunit protein bL27

+
Macromolecule #24: 50S ribosomal protein L28

MacromoleculeName: 50S ribosomal protein L28 / type: protein_or_peptide / ID: 24 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 8.896354 KDa
SequenceString:
SRVCQVTGKR PVTGNNRSHA LNATKRRFLP NLHSHRFWVE SEKRFVTLRV SAKGMRVIDK KGIDTVLAEL RARGEKY

UniProtKB: Large ribosomal subunit protein bL28

+
Macromolecule #25: Large ribosomal subunit protein uL29

MacromoleculeName: Large ribosomal subunit protein uL29 / type: protein_or_peptide / ID: 25 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 7.155267 KDa
SequenceString:
KAKELREKSV EELNTELLNL LREQFNLRMQ AASGQLQQSH LLKQVRRDVA RVKTLLNEKA GA

UniProtKB: Large ribosomal subunit protein uL29

+
Macromolecule #26: 50S ribosomal protein L30

MacromoleculeName: 50S ribosomal protein L30 / type: protein_or_peptide / ID: 26 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 6.423625 KDa
SequenceString:
AKTIKITQTR SAIGRLPKHK ATLLGLGLRR IGHTVEREDT PAIRGMINAV SFMVKVEE

UniProtKB: Large ribosomal subunit protein uL30

+
Macromolecule #27: 50S ribosomal protein L32

MacromoleculeName: 50S ribosomal protein L32 / type: protein_or_peptide / ID: 27 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 6.332249 KDa
SequenceString:
AVQQNKPTRS KRGMRRSHDA LTAVTSLSVD KTSGEKHLRH HITADGYYRG RKVIAK

UniProtKB: Large ribosomal subunit protein bL32

+
Macromolecule #28: Large ribosomal subunit protein bL33

MacromoleculeName: Large ribosomal subunit protein bL33 / type: protein_or_peptide / ID: 28 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 5.814842 KDa
SequenceString:
GIREKIKLVS SAGTGHFYTT TKNKRTKPEK LELKKFDPVV RQHVIYKEAK

UniProtKB: Large ribosomal subunit protein bL33

+
Macromolecule #29: 50S ribosomal protein L34

MacromoleculeName: 50S ribosomal protein L34 / type: protein_or_peptide / ID: 29 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 5.397463 KDa
SequenceString:
MKRTFQPSVL KRNRSHGFRA RMATKNGRQV LARRRAKGRA RLTVSK

UniProtKB: Large ribosomal subunit protein bL34

+
Macromolecule #30: Large ribosomal subunit protein bL35

MacromoleculeName: Large ribosomal subunit protein bL35 / type: protein_or_peptide / ID: 30 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 7.181835 KDa
SequenceString:
PKIKTVRGAA KRFKKTGKGG FKHKHANLRH ILTKKATKRK RHLRPKAMVS KGDLGLVIAC LPYA

UniProtKB: Large ribosomal subunit protein bL35

+
Macromolecule #31: 50S ribosomal protein L36

MacromoleculeName: 50S ribosomal protein L36 / type: protein_or_peptide / ID: 31 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 4.37739 KDa
SequenceString:
MKVRASVKKL CRNCKIVKRD GVIRVICSAE PKHKQRQG

UniProtKB: Large ribosomal subunit protein bL36

+
Macromolecule #32: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 32 / Number of copies: 185 / Formula: MG
Molecular weightTheoretical: 24.305 Da

+
Macromolecule #33: (3R,4R,5E,11E,14R,16R,23R,26aR)-16-fluoro-14-hydroxy-12-methyl-3-...

MacromoleculeName: (3R,4R,5E,11E,14R,16R,23R,26aR)-16-fluoro-14-hydroxy-12-methyl-3-(propan-2-yl)-4-{5-[4-(pyridin-4-yl)-1H-1,2,3-triazol-1-yl]pentyl}-3,4,8,9,10,13,14,15,16,17,24,25,26,26a-tetradecahydro- ...Name: (3R,4R,5E,11E,14R,16R,23R,26aR)-16-fluoro-14-hydroxy-12-methyl-3-(propan-2-yl)-4-{5-[4-(pyridin-4-yl)-1H-1,2,3-triazol-1-yl]pentyl}-3,4,8,9,10,13,14,15,16,17,24,25,26,26a-tetradecahydro-1H,7H,22H-21,18-(azeno)pyrrolo[2,1-c][1,8,4,19]dioxadiazacyclotetracosine-1,7,22-trione
type: ligand / ID: 33 / Number of copies: 1 / Formula: A1C7K
Molecular weightTheoretical: 733.872 Da

+
Macromolecule #34: SODIUM ION

MacromoleculeName: SODIUM ION / type: ligand / ID: 34 / Number of copies: 1
Molecular weightTheoretical: 22.99 Da

+
Macromolecule #35: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 35 / Number of copies: 1 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

+
Macromolecule #36: water

MacromoleculeName: water / type: ligand / ID: 36 / Number of copies: 16714 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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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 TALOS ARCTICA
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company

+
Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.49 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 569471
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: PROJECTION MATCHING
FSC plot (resolution estimation)

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