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Nanomechanics of Drug-target Interactions and Antibacterial Resistance Detection
Published on: October 25, 2013
A new insight into solid-state conformation of macrolide antibiotics
Inna Miroshnyk1, Sabiruddin Mirza, Petr M Zorky
1Division of Pharmaceutical Technology, Faculty of Pharmacy, University of Helsinki, Finland, PO Box 56, FI 00014, Finland. inna.miroshnyk@helsinki.fi
Bioorganic & Medicinal Chemistry
|October 16, 2007
Summary
The spatial arrangement of sugar molecules in macrolide antibiotics like erythromycin is key to their structure. This study reveals unique conformations and interactions influencing drug properties.
Area of Science:
- Medicinal Chemistry
- Structural Biology
- Pharmacology
Background:
- Macrolide antibiotics are crucial in treating bacterial infections.
- Understanding their solid-state conformations is vital for drug design.
- Erythromycin A, B, clarithromycin, and roxithromycin share a common macrolide core.
Purpose of the Study:
- To quantitatively analyze the solid-state molecular conformations of 14-membered macrolide antibiotics.
- To identify distinctive conformational features related to monosaccharide moieties.
- To explore similarities between 14- and 15-membered macrolides.
Main Methods:
- Quantitative analysis of molecular conformations.
- Atom-atom interaction energy analysis.
- Comparison of spatial arrangements in related macrolides.
Main Results:
- The erythronolide macrocycle exhibits a conserved folded-out conformation.
- The proximity of L-cladinose and D-desosamine sugars is a distinctive feature.
- Shared interactions in monosaccharide orientation were found between 14- and 15-membered macrolides.
Conclusions:
- The spatial arrangement of monosaccharide moieties significantly differentiates macrolide conformations.
- These conformational differences influence the biopharmaceutical properties of erythromycin derivatives.
- Structural similarities extend to 15-membered macrolides, suggesting conserved interaction principles.
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