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Lifestyle Health and Wellbeing 19 Jun 2018 Scientists discover ...

Scientists discover potential disease-fighting 'warheads' in bacteria

Published Jun 19, 2018, 2:09 pm IST
Updated Jun 19, 2018, 2:09 pm IST
Scientists could build better drugs by learning from molecules derived from bacteria called thiocarboxylic acids.
Scientists discover potential disease-fighting 'warheads' in bacteria.(Photo: Pixabay)
 Scientists discover potential disease-fighting 'warheads' in bacteria.(Photo: Pixabay)

Washington: The bacteria found in soil may harbor a potential game-changer for drug design, a study has found.

A new study by Scripps Research suggested that scientists could build better drugs by learning from molecules derived from bacteria called thiocarboxylic acids.


The findings done by Ben Shen, PhD, and his colleagues at the Florida campus of Scripps Research investigated "natural products" made by organisms such as soil-dwelling bacteria.

Professor and co-chair of the Department of Chemistry at Scripps Research, Shen said,"We use natural products as an inspiration for chemistry, biology and drug discovery."

Thiocarboxylic acids caught Shen's attention because of their rarity in nature and similarity to lab-made molecules called carboxylic acids.

Shen and his colleagues then took a closer look at two natural products, platensimycin and platencin, that have been extensively investigated as potential antibiotics. To their surprise, platensimycin and platencin, are actually made by bacteria as thiocarboxylic acids.


The researchers revealed, for the first time, the exact genes, and the enzymes they encode, that bacteria use to create thiocarboxylic acids.

After this, the scientists set out to test whether nature-made thiocarboxylic acids could also act as biological warheads as well. The researchers discovered that, as antibiotics, platensimycin and platencin thiocarboxylic acids appeared to bind to their biological targets even better than their carboxylic acid counterparts.

Interestingly, thiocarboxylic acids appeared to have been hiding in plain sight. The molecules were thought to be rare and were not much appreciated to date as a family of natural products.


"There are many, many thiocarboxylic acid natural products waiting to be discovered, making them a treasure trove of potential new drug leads or drugs" said Shen.

The study is published in Nature Communications.