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Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Published on: October 15, 2019

Structure-guided metagenome mining to tap microbial functional diversity.

Serina L Robinson¹

¹Department of Environmental Microbiology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Ueberlandstrasse 133, 8600 Dübendorf, Switzerland.

Current Opinion in Microbiology

|September 23, 2023

Summary

Leveraging 3D protein structures in metagenomics reveals microbial functions. This approach moves beyond sequence alignment to analyze fine-grained structural details for insights into microbial communities.

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Area of Science:

Structural biology
Metagenomics
Microbial ecology

Background:

Millions of accurate 3D protein structure models are now available.
Metagenomics enables the study of microbial communities from diverse environments.
Integrating structural information with metagenomic data can enhance functional predictions.

Purpose of the Study:

To review methods for using 3D protein structural features to analyze metagenomes.
To compare 3D structural approaches for characterizing microbial functions.
To encourage the use of detailed structural features for microbiome research.

Main Methods:

Mining metagenomes using protein structural features.
Comparing 3D protein structural methods for functional characterization.
Analyzing fine-grained descriptors like ligand distance and active sites.

Main Results:

3D structural methods can characterize antibiotic resistance, nutrient cycling, and host-drug-microbe interactions.
Fine-grained structural features offer advantages over global sequence and structure alignments.
These methods are applicable to diverse environments, including the human gut, soil, and oceans.

Conclusions:

3D protein structures are valuable for understanding microbial functions encoded in metagenomes.
Adopting detailed structural analyses can unlock new insights into microbial protein-coding sequences.
Future research should explore structure-inspired approaches to expand the study of microbial protein diversity.