1PBR image
Deposition Date 1996-09-12
Release Date 1997-09-17
Last Version Date 2024-05-01
Entry Detail
PDB ID:
1PBR
Keywords:
Title:
STRUCTURE OF 16S RIBOSOMAL RNA, NMR, MINIMIZED AVERAGE STRUCTURE
Biological Source:
Source Organism:
(Taxon ID: ) (Taxon ID: )
Method Details:
Experimental Method:
Conformers Submitted:
1
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:16S RIBOSOMAL RNA
Chain IDs:A
Chain Length:27
Number of Molecules:1
Biological Source:
Primary Citation
Structure of the A site of Escherichia coli 16S ribosomal RNA complexed with an aminoglycoside antibiotic.
Science 274 1367 1371 (1996)
PMID: 8910275 DOI: 10.1126/science.274.5291.1367

Abstact

Aminoglycoside antibiotics that bind to 30S ribosomal A-site RNA cause misreading of the genetic code and inhibit translocation. The aminoglycoside antibiotic paromomycin binds specifically to an RNA oligonucleotide that contains the 30S subunit A site, and the solution structure of the RNA-paromomycin complex was determined by nuclear magnetic resonance spectroscopy. The antibiotic binds in the major groove of the model A-site RNA within a pocket created by an A-A base pair and a single bulged adenine. Specific interactions occur between aminoglycoside chemical groups important for antibiotic activity and conserved nucleotides in the RNA. The structure explains binding of diverse aminoglycosides to the ribosome, their specific activity against prokaryotic organisms, and various resistance mechanisms, and provides insight into ribosome function.

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Primary Citation of related structures