6SPE image
Entry Detail
PDB ID:
6SPE
EMDB ID:
Keywords:
Title:
Pseudomonas aeruginosa 30s ribosome from a clinical isolate
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2019-09-01
Release Date:
2019-10-16
Method Details:
Experimental Method:
Resolution:
3.60 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polyribonucleotide
Description:16S ribosomal RNA
Chain IDs:A (auth: a)
Chain Length:1526
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S2
Chain IDs:B (auth: b)
Chain Length:239
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S3
Chain IDs:C (auth: c)
Chain Length:205
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S4
Chain IDs:D (auth: d)
Chain Length:205
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S5
Chain IDs:E (auth: e)
Chain Length:156
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S6
Chain IDs:F (auth: f)
Chain Length:105
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S7
Chain IDs:G (auth: g)
Chain Length:154
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S8
Chain IDs:H (auth: h)
Chain Length:129
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S9
Chain IDs:I (auth: i)
Chain Length:126
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S10
Chain IDs:J (auth: j)
Chain Length:96
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S11
Chain IDs:K (auth: k)
Chain Length:115
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S12
Chain IDs:L (auth: l)
Chain Length:121
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S13
Chain IDs:M (auth: m)
Chain Length:110
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S14
Chain IDs:N (auth: n)
Chain Length:98
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S15
Chain IDs:O (auth: o)
Chain Length:86
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S16
Chain IDs:P (auth: p)
Chain Length:78
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S17
Chain IDs:Q (auth: q)
Chain Length:76
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S18
Chain IDs:R (auth: r)
Chain Length:71
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S19
Chain IDs:S (auth: s)
Chain Length:80
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S20
Chain IDs:T (auth: t)
Chain Length:85
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Polymer Type:polypeptide(L)
Description:30S ribosomal protein S21
Chain IDs:U (auth: u)
Chain Length:63
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa
Ligand Molecules
Primary Citation
Structure ofPseudomonas aeruginosaribosomes from an aminoglycoside-resistant clinical isolate.
Proc.Natl.Acad.Sci.USA 116 22275 22281 (2019)
PMID: 31611393 DOI: 10.1073/pnas.1909831116

Abstact

Resistance to antibiotics has become a major threat to modern medicine. The ribosome plays a fundamental role in cell vitality by the translation of the genetic code into proteins; hence, it is a major target for clinically useful antibiotics. We report here the cryo-electron microscopy structures of the ribosome of a pathogenic aminoglycoside (AG)-resistant Pseudomonas aeruginosa strain, as well as of a nonresistance strain isolated from a cystic fibrosis patient. The structural studies disclosed defective ribosome complex formation due to a conformational change of rRNA helix H69, an essential intersubunit bridge, and a secondary binding site of the AGs. In addition, a stable conformation of nucleotides A1486 and A1487, pointing into helix h44, is created compared to a non-AG-bound ribosome. We suggest that altering the conformations of ribosomal protein uL6 and rRNA helix H69, which interact with initiation-factor IF2, interferes with proper protein synthesis initiation.

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Primary Citation of related structures