A nanocompartment system contributes to defense against oxidative stress in Mycobacterium tuberculosis
Encapsulin nanocompartments are an emerging class of prokaryotic protein-based organelle consisting of an encapsulin protein shell that encloses a protein cargo. Genes encoding nanocompartments are widespread in bacteria and archaea, and recent works have characterized the biochemical function of se...
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eLife Sciences Publications Ltd
2021
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oai:doaj.org-article:b3fff152f7ee4ad4a13e56e9e94db6222021-12-01T15:40:49ZA nanocompartment system contributes to defense against oxidative stress in Mycobacterium tuberculosis10.7554/eLife.743582050-084Xe74358https://doaj.org/article/b3fff152f7ee4ad4a13e56e9e94db6222021-11-01T00:00:00Zhttps://elifesciences.org/articles/74358https://doaj.org/toc/2050-084XEncapsulin nanocompartments are an emerging class of prokaryotic protein-based organelle consisting of an encapsulin protein shell that encloses a protein cargo. Genes encoding nanocompartments are widespread in bacteria and archaea, and recent works have characterized the biochemical function of several cargo enzymes. However, the importance of these organelles to host physiology is poorly understood. Here, we report that the human pathogen Mycobacterium tuberculosis (Mtb) produces a nanocompartment that contains the dye-decolorizing peroxidase DyP. We show that this nanocompartment is important for the ability of Mtb to resist oxidative stress in low pH environments, including during infection of host cells and upon treatment with a clinically relevant antibiotic. Our findings are the first to implicate a nanocompartment in bacterial pathogenesis and reveal a new mechanism that Mtb uses to combat oxidative stress.Katie A LienKayla DinshawRobert J NicholsCaleb Cassidy-AmstutzMatthew KnightRahul SinghLindsay D EltisDavid F SavageSarah A StanleyeLife Sciences Publications LtdarticleMycobacterium tuberculosisencapsulinoxidative defenseMedicineRScienceQBiology (General)QH301-705.5ENeLife, Vol 10 (2021) |
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Mycobacterium tuberculosis encapsulin oxidative defense Medicine R Science Q Biology (General) QH301-705.5 |
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Mycobacterium tuberculosis encapsulin oxidative defense Medicine R Science Q Biology (General) QH301-705.5 Katie A Lien Kayla Dinshaw Robert J Nichols Caleb Cassidy-Amstutz Matthew Knight Rahul Singh Lindsay D Eltis David F Savage Sarah A Stanley A nanocompartment system contributes to defense against oxidative stress in Mycobacterium tuberculosis |
description |
Encapsulin nanocompartments are an emerging class of prokaryotic protein-based organelle consisting of an encapsulin protein shell that encloses a protein cargo. Genes encoding nanocompartments are widespread in bacteria and archaea, and recent works have characterized the biochemical function of several cargo enzymes. However, the importance of these organelles to host physiology is poorly understood. Here, we report that the human pathogen Mycobacterium tuberculosis (Mtb) produces a nanocompartment that contains the dye-decolorizing peroxidase DyP. We show that this nanocompartment is important for the ability of Mtb to resist oxidative stress in low pH environments, including during infection of host cells and upon treatment with a clinically relevant antibiotic. Our findings are the first to implicate a nanocompartment in bacterial pathogenesis and reveal a new mechanism that Mtb uses to combat oxidative stress. |
format |
article |
author |
Katie A Lien Kayla Dinshaw Robert J Nichols Caleb Cassidy-Amstutz Matthew Knight Rahul Singh Lindsay D Eltis David F Savage Sarah A Stanley |
author_facet |
Katie A Lien Kayla Dinshaw Robert J Nichols Caleb Cassidy-Amstutz Matthew Knight Rahul Singh Lindsay D Eltis David F Savage Sarah A Stanley |
author_sort |
Katie A Lien |
title |
A nanocompartment system contributes to defense against oxidative stress in Mycobacterium tuberculosis |
title_short |
A nanocompartment system contributes to defense against oxidative stress in Mycobacterium tuberculosis |
title_full |
A nanocompartment system contributes to defense against oxidative stress in Mycobacterium tuberculosis |
title_fullStr |
A nanocompartment system contributes to defense against oxidative stress in Mycobacterium tuberculosis |
title_full_unstemmed |
A nanocompartment system contributes to defense against oxidative stress in Mycobacterium tuberculosis |
title_sort |
nanocompartment system contributes to defense against oxidative stress in mycobacterium tuberculosis |
publisher |
eLife Sciences Publications Ltd |
publishDate |
2021 |
url |
https://doaj.org/article/b3fff152f7ee4ad4a13e56e9e94db622 |
work_keys_str_mv |
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