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Updated: Aug 25, 2025

Fecal micro RNA Isolation
Published on: October 28, 2020
An emerging field: Post-translational modification in microbiome
Haonan Duan1,2, Xu Zhang3, Daniel Figeys1,2
1School of Pharmaceutical Sciences, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
Abstract:
Post-translational modifications (PTMs) play an essential role in most biological processes. PTMs on human proteins have been extensively studied. Studies on bacterial PTMs are emerging, which demonstrate that bacterial PTMs are different from human PTMs in their types, mechanisms and functions. Few PTM studies have been done on the microbiome. Here, we reviewed several studied PTMs in bacteria including phosphorylation, acetylation, succinylation, glycosylation, and proteases. We discussed the enzymes responsible for each PTM and their functions. We also summarized the current methods used to study microbiome PTMs and the observations demonstrating the roles of PTM in the microbe-microbe interactions within the microbiome and their interactions with the environment or host. Although new methods and tools for PTM studies are still needed, the existing technologies have made great progress enabling a deeper understanding of the functional regulation of the microbiome. Large-scale application of these microbiome-wide PTM studies will provide a better understanding of the microbiome and its roles in the development of human diseases.
Insights
Bacterial post-translational modifications (PTMs) differ from human PTMs and are crucial for microbiome function. Understanding these bacterial PTMs offers insights into microbe interactions and human health.
Area of Science:
- Microbiology
- Biochemistry
- Molecular Biology
Background:
- Post-translational modifications (PTMs) are vital for biological processes, with extensive research on human proteins.
- Studies on bacterial PTMs are increasing, revealing unique types, mechanisms, and functions compared to human PTMs.
- PTM research in the microbiome remains limited, despite its significance.
Purpose of the Study:
- To review studied bacterial PTMs, including phosphorylation, acetylation, succinylation, glycosylation, and proteases.
- To discuss enzymes responsible for these PTMs and their specific functions.
- To summarize current methodologies for studying microbiome PTMs and their roles in microbial interactions and host-environment dynamics.
Main Methods:
- Literature review of bacterial post-translational modifications.
- Analysis of enzymes involved in bacterial PTMs.
- Summary of techniques for microbiome PTM investigation.
Main Results:
- Bacterial PTMs exhibit distinct characteristics from human PTMs.
- PTMs influence microbe-microbe interactions and host-microbiome relationships.
- Current methods, though evolving, enable deeper understanding of microbiome functional regulation.
Conclusions:
- Bacterial PTMs are critical regulators within the microbiome.
- Advancements in PTM study technologies are enhancing our comprehension of microbiome functions.
- Further large-scale microbiome-wide PTM studies are essential for understanding the microbiome's role in human diseases.
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