2F4T image
Entry Detail
PDB ID:
2F4T
Keywords:
RNA
Title:
Asite RNA + designer antibiotic
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2005-11-24
Release Date:
2006-05-02
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
3.00 Å
R-Value Free:
0.26
R-Value Work:
0.21
R-Value Observed:
0.26
Space Group:
P 1 21 1
2F4T validation report
Macromolecular Entities
Polymer Type:polyribonucleotide
Description:5'-R(*GP*CP*GP*UP*CP*AP*CP*AP*CP*CP*GP*GP*UP*GP*AP*AP*GP*UP*CP*GP*C)-3'
Chain IDs:A
Chain Length:21
Number of Molecules:1
Biological Source:
Polymer Type:polyribonucleotide
Description:5'-R(*UP*UP*GP*CP*GP*UP*CP*AP*CP*AP*CP*CP*GP*GP*UP*GP*AP*AP*GP*UP*CP*GP*C)-3'
Chain IDs:B
Chain Length:23
Number of Molecules:1
Biological Source:
Ligand Molecules
AB9
Primary Citation
Interactions of designer antibiotics and the bacterial ribosomal aminoacyl-tRNA site
Chem.Biol. 13 129 138 (2006)
PMID: 16492561 DOI: 10.1016/j.chembiol.2005.11.004

Abstact

The X-ray crystal structures for the complexes of three designer antibiotics, compounds 1, 2, and 3, bound to two models for the ribosomal aminoacyl-tRNA site (A site) at 2.5-3.0 Angstroms resolution and that of neamine at 2.8 Angstroms resolution are described. Furthermore, the complex of antibiotic 1 bound to the A site in the entire 30S ribosomal subunit of Thermus thermophilus is reported at 3.8 Angstroms resolution. Molecular dynamics simulations revealed that the designer compounds provide additional stability to bases A1492 and A1493 in their extrahelical forms. Snapshots from the simulations were used for free energy calculations, which revealed that van der Waals and hydrophobic effects were the driving forces behind the binding of designer antibiotic 3 when compared to the parental neamine.

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Disease

Primary Citation of related structures
2F4S
2F4U
2F4V