7Q4K image
Deposition Date 2021-10-31
Release Date 2022-11-16
Last Version Date 2024-04-24
Entry Detail
PDB ID:
7Q4K
Keywords:
Title:
Erythromycin-stalled Escherichia coli 70S ribosome with streptococcal MsrDL nascent chain
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
3.00 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:16S rRNA
Chain IDs:A (auth: AA)
Chain Length:1534
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S2
Gene (Uniprot):rpsB
Chain IDs:B (auth: AB)
Chain Length:241
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S3
Gene (Uniprot):rpsC
Chain IDs:C (auth: AC)
Chain Length:233
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S4
Gene (Uniprot):rpsD
Chain IDs:D (auth: AD)
Chain Length:206
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S5
Gene (Uniprot):rpsE
Chain IDs:E (auth: AE)
Chain Length:167
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S6
Gene (Uniprot):rpsF
Chain IDs:F (auth: AF)
Chain Length:135
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S7
Gene (Uniprot):rpsG
Chain IDs:G (auth: AG)
Chain Length:179
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S8
Gene (Uniprot):rpsH
Chain IDs:H (auth: AH)
Chain Length:130
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S9
Gene (Uniprot):rpsI
Chain IDs:I (auth: AI)
Chain Length:130
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S10
Gene (Uniprot):rpsJ
Chain IDs:J (auth: AJ)
Chain Length:103
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S11
Gene (Uniprot):rpsK
Chain IDs:K (auth: AK)
Chain Length:129
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S12
Gene (Uniprot):rpsL
Chain IDs:L (auth: AL)
Chain Length:124
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S13
Gene (Uniprot):rpsM
Chain IDs:M (auth: AM)
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S14
Gene (Uniprot):rpsN
Chain IDs:N (auth: AN)
Chain Length:102
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S15
Gene (Uniprot):rpsO
Chain IDs:O (auth: AO)
Chain Length:89
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S16
Gene (Uniprot):rpsP
Chain IDs:P (auth: AP)
Chain Length:82
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S17
Gene (Uniprot):rpsQ
Chain IDs:Q (auth: AQ)
Chain Length:84
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S18
Gene (Uniprot):rpsR
Chain IDs:R (auth: AR)
Chain Length:75
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S19
Gene (Uniprot):rpsS
Chain IDs:S (auth: AS)
Chain Length:92
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S20
Gene (Uniprot):rpsT
Chain IDs:T (auth: AT)
Chain Length:87
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S21
Gene (Uniprot):rpsU
Chain IDs:U (auth: AU)
Chain Length:71
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L32
Gene (Uniprot):rpmF
Chain IDs:VA (auth: B0)
Chain Length:57
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L33
Gene (Uniprot):rpmG
Chain IDs:WA (auth: B1)
Chain Length:55
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L34
Gene (Uniprot):rpmH
Chain IDs:XA (auth: B2)
Chain Length:46
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L35
Gene (Uniprot):rpmI
Chain IDs:YA (auth: B3)
Chain Length:65
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L36
Gene (Uniprot):rpmJ
Chain IDs:ZA (auth: B4)
Chain Length:38
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:23S rRNA
Chain IDs:V (auth: BA)
Chain Length:2903
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:5S rRNA
Chain IDs:W (auth: BB)
Chain Length:120
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L2
Gene (Uniprot):rplB
Chain IDs:X (auth: BC)
Chain Length:273
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L3
Gene (Uniprot):rplC
Chain IDs:Y (auth: BD)
Chain Length:209
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L4
Gene (Uniprot):rplD
Chain IDs:Z (auth: BE)
Chain Length:201
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L5
Gene (Uniprot):rplE
Chain IDs:AA (auth: BF)
Chain Length:179
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L6
Gene (Uniprot):rplF
Chain IDs:BA (auth: BG)
Chain Length:177
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L9
Gene (Uniprot):rplI
Chain IDs:CA (auth: BH)
Chain Length:149
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L31
Chain IDs:DA (auth: BI)
Chain Length:70
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L13
Gene (Uniprot):rplM
Chain IDs:EA (auth: BJ)
Chain Length:142
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L14
Gene (Uniprot):rplN
Chain IDs:FA (auth: BK)
Chain Length:123
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L15
Gene (Uniprot):rplO
Chain IDs:GA (auth: BL)
Chain Length:144
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L16
Gene (Uniprot):rplP
Chain IDs:HA (auth: BM)
Chain Length:136
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L17
Gene (Uniprot):rplQ
Chain IDs:IA (auth: BN)
Chain Length:127
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L18
Gene (Uniprot):rplR
Chain IDs:JA (auth: BO)
Chain Length:117
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L19
Gene (Uniprot):rplS
Chain IDs:KA (auth: BP)
Chain Length:115
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L20
Gene (Uniprot):rplT
Chain IDs:LA (auth: BQ)
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L21
Gene (Uniprot):rplU
Chain IDs:MA (auth: BR)
Chain Length:103
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L22
Gene (Uniprot):rplV
Chain IDs:NA (auth: BS)
Chain Length:110
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L23
Gene (Uniprot):rplW
Chain IDs:OA (auth: BT)
Chain Length:100
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L24
Gene (Uniprot):rplX
Chain IDs:PA (auth: BU)
Chain Length:104
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L25
Gene (Uniprot):rplY
Chain IDs:QA (auth: BV)
Chain Length:94
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L27
Gene (Uniprot):rpmA
Chain IDs:RA (auth: BW)
Chain Length:85
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L28
Gene (Uniprot):rpmB
Chain IDs:SA (auth: BX)
Chain Length:78
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L29
Gene (Uniprot):rpmC
Chain IDs:TA (auth: BY)
Chain Length:63
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L30
Gene (Uniprot):rpmD
Chain IDs:UA (auth: BZ)
Chain Length:59
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:MsrDL: FME-TYR-LEU-ILE-PHE-MET
Chain IDs:AB (auth: D1)
Chain Length:6
Number of Molecules:1
Biological Source:Streptococcus pneumoniae
Polymer Type:polyribonucleotide
Molecule:Met-tRNA (P site)
Chain IDs:BB (auth: D2)
Chain Length:77
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:Phe-tRNA (E site)
Chain IDs:CB (auth: D3)
Chain Length:76
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:MsrDL mRNA
Chain IDs:DB (auth: D4)
Chain Length:9
Number of Molecules:1
Biological Source:Streptococcus pneumoniae
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
1MG V G modified residue
2MA V A modified residue
2MG A G modified residue
3TD V U modified residue
4D4 HA ARG modified residue
4OC A C modified residue
5MC A C modified residue
5MU V U modified residue
6MZ V A modified residue
D2T L ASP modified residue
G7M A G modified residue
H2U V U modified residue
MA6 A A modified residue
MEQ Y GLN modified residue
OMC V C modified residue
OMG V G modified residue
OMU V U modified residue
PSU A U modified residue
UR3 A U modified residue
Primary Citation
Regulation of the macrolide resistance ABC-F translation factor MsrD.
Nat Commun 14 3891 3891 (2023)
PMID: 37393329 DOI: 10.1038/s41467-023-39553-8

Abstact

Antibiotic resistance ABC-Fs (ARE ABC-Fs) are translation factors that provide resistance against clinically important ribosome-targeting antibiotics which are proliferating among pathogens. Here, we combine genetic and structural approaches to determine the regulation of streptococcal ARE ABC-F gene msrD in response to macrolide exposure. We show that binding of cladinose-containing macrolides to the ribosome prompts insertion of the leader peptide MsrDL into a crevice of the ribosomal exit tunnel, which is conserved throughout bacteria and eukaryotes. This leads to a local rearrangement of the 23 S rRNA that prevents peptide bond formation and accommodation of release factors. The stalled ribosome obstructs the formation of a Rho-independent terminator structure that prevents msrD transcriptional attenuation. Erythromycin induction of msrD expression via MsrDL, is suppressed by ectopic expression of mrsD, but not by mutants which do not provide antibiotic resistance, showing correlation between MsrD function in antibiotic resistance and its action on this stalled complex.

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Primary Citation of related structures