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2qal
From Proteopedia
Contents
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Crystal structure of the bacterial ribosome from Escherichia coli in complex with neomycin. This file contains the 30S subunit of the first 70S ribosome, with neomycin bound. The entire crystal structure contains two 70S ribosomes and is described in remark 400.
Aminoglycosides are widely used antibiotics that cause messenger RNA decoding errors, block mRNA and transfer RNA translocation, and inhibit ribosome recycling. Ribosome recycling follows the termination of protein synthesis and is aided by ribosome recycling factor (RRF) in bacteria. The molecular mechanism by which aminoglycosides inhibit ribosome recycling is unknown. Here we show in X-ray crystal structures of the Escherichia coli 70S ribosome that RRF binding causes RNA helix H69 of the large ribosomal subunit, which is crucial for subunit association, to swing away from the subunit interface. Aminoglycosides bind to H69 and completely restore the contacts between ribosomal subunits that are disrupted by RRF. These results provide a structural explanation for aminoglycoside inhibition of ribosome recycling.
Structural basis for aminoglycoside inhibition of bacterial ribosome recycling., Borovinskaya MA, Pai RD, Zhang W, Schuwirth BS, Holton JM, Hirokawa G, Kaji H, Kaji A, Cate JH, Nat Struct Mol Biol. 2007 Aug;14(8):727-32. Epub 2007 Jul 29. PMID:17660832
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
About this Structure
2qal is a 21 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA.
See Also
- Ribosomal protein S10
- Ribosomal protein S11
- Ribosomal protein S12
- Ribosomal protein S13
- Ribosomal protein S14
- Ribosomal protein S15
- Ribosomal protein S16
- Ribosomal protein S17
- Ribosomal protein S18
- Ribosomal protein S19
- Ribosomal protein S2
- Ribosomal protein S20
- Ribosomal protein S21
- Ribosomal protein S3
- Ribosomal protein S4
- Ribosomal protein S5
- Ribosomal protein S6
- Ribosomal protein S7
- Ribosomal protein S8
- Ribosomal protein S9
- Ribosome
Reference
- Borovinskaya MA, Pai RD, Zhang W, Schuwirth BS, Holton JM, Hirokawa G, Kaji H, Kaji A, Cate JH. Structural basis for aminoglycoside inhibition of bacterial ribosome recycling. Nat Struct Mol Biol. 2007 Aug;14(8):727-32. Epub 2007 Jul 29. PMID:17660832 doi:10.1038/nsmb1271
