Biochimie, volume 133, pages 45-55
2-Guanidino-quinazolines as a novel class of translation inhibitors
Osterman Ilya A
2, 3
,
Pletnev P I
2, 3
,
Ivanenkov Yan
2, 4, 5
,
Majouga Alexander G.
2, 5
,
Bogdanov Alexey A.
2
,
Sergiev Petr V.
2, 3
Publication type: Journal Article
Publication date: 2017-02-01
Biochemistry
General Medicine
Abstract
A variety of structurally unrelated organic compounds has been reported to have antibacterial activity. Among these, certain small-molecule translation inhibitors have attracted a great deal of attention, due to their relatively high selectivity against prokaryotes, and an appropriate therapeutic index with minor "off target" effects. However, ribosomes are being considered as poorly druggable biological targets, thereby making some routine computational-based approaches to rational drug design and its development rather ineffective. Taking this into account, diversity-oriented biological screening can reasonably be considered as the most advantageous strategy. Thus, using a high-throughput screening (HTS) platform, we applied a unique biological assay for in vitro evaluation of thousands of organic molecules, especially targeted against bacterial ribosomes and translation. As a result, we have identified a series of structurally diverse small-molecule compounds that induce a reporter strain sensitive to translation and DNA biosynthesis inhibitors. In a cell free system, several molecules were found to strongly inhibit protein biosynthesis. Among them, compounds bearing a 2-guanidino-quinazoline core demonstrated the most promising antibacterial activity. With regard to the preliminary structure-activity relationship (SAR) study, we revealed that relatively small substituents at positions 4, 6 and 8 of the quinazoline ring significantly enhance the target activity whereas modification of the guanidine group leads to decrease or loss of antibacterial potency. This novel class of translation inhibitors can properly be regarded as a promising starting point for the development of novel antibacterial therapeutic or screening tools.
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Citations by publishers
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1
2
3
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Komarova E. S. et al. 2-Guanidino-quinazolines as a novel class of translation inhibitors // Biochimie. 2017. Vol. 133. pp. 45-55.
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Komarova E. S., Osterman I. A., Pletnev P. I., Ivanenkov Y., Majouga A. G., Bogdanov A. A., Sergiev P. V. 2-Guanidino-quinazolines as a novel class of translation inhibitors // Biochimie. 2017. Vol. 133. pp. 45-55.
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TY - JOUR
DO - 10.1016/j.biochi.2016.11.008
UR - https://doi.org/10.1016%2Fj.biochi.2016.11.008
TI - 2-Guanidino-quinazolines as a novel class of translation inhibitors
T2 - Biochimie
AU - Pletnev, P I
AU - Komarova, Ekaterina S
AU - Osterman, Ilya A
AU - Ivanenkov, Yan
AU - Majouga, Alexander G.
AU - Bogdanov, Alexey A.
AU - Sergiev, Petr V.
PY - 2017
DA - 2017/02/01 00:00:00
PB - Elsevier
SP - 45-55
VL - 133
SN - 0300-9084
SN - 6183-1638
ER -
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@article{2017_Komarova,
author = {P I Pletnev and Ekaterina S Komarova and Ilya A Osterman and Yan Ivanenkov and Alexander G. Majouga and Alexey A. Bogdanov and Petr V. Sergiev},
title = {2-Guanidino-quinazolines as a novel class of translation inhibitors},
journal = {Biochimie},
year = {2017},
volume = {133},
publisher = {Elsevier},
month = {feb},
url = {https://doi.org/10.1016%2Fj.biochi.2016.11.008},
pages = {45--55},
doi = {10.1016/j.biochi.2016.11.008}
}