Related Experiment Video
Updated: Sep 28, 2025

11:22
Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
29.9K
Microbial Identification Using rRNA Operon Region: Database and Tool for Metataxonomics with Long-Read Sequence.
Donghyeok Seol1,2, Jin Soo Lim2, Samsun Sung1
1eGnome, Inc, Seoul, Republic of Korea.
Microbiology Spectrum
|March 30, 2022
Summary
Researchers can now achieve higher resolution bacterial community analysis using the 16S-ITS-23S rRNA operon region with the new MIrROR database and analysis tool. This platform supports long-read sequencing for more accurate metagenomic insights.
Area of Science:
- Microbiology
- Bioinformatics
- Genomics
Background:
- Long-read sequencing offers higher taxonomic resolution for bacterial community analysis compared to short-read platforms.
- Existing resources and protocols for long-read metagenomics, particularly for the 16S-ITS-23S rRNA operon region, are limited.
Purpose of the Study:
- To introduce MIrROR, a comprehensive database and analysis tool for bacterial metataxonomics using the 16S-ITS-23S rRNA operon region.
- To provide a user-friendly platform for high-resolution bacterial community profiling with long-read sequencing technologies.
Main Methods:
- Curated 97,781 16S-ITS-23S rRNA operon sequences from 43,653 bacterial genomes in NCBI GenBank.
- Developed a mapping-based analysis tool for taxonomic profiling using the MIrROR database.
- Benchmarked MIrROR against existing databases and tools using mock communities and simulated datasets.
Main Results:
- The MIrROR database contains 97,781 sequences covering 9,485 bacterial species.
- The MIrROR platform demonstrated high accuracy in species classification and broad coverage.
- Performance benchmarks showed MIrROR to be competitive with existing resources.
Conclusions:
- MIrROR addresses the need for specialized databases and tools for long-read based 16S-ITS-23S rRNA operon analysis.
- The platform facilitates high-resolution bacterial community analysis, offering new insights across various research fields.
- MIrROR supports cost-effective sequencers like Oxford Nanopore's MinION for advanced metagenomic studies.
Related Concept Videos
Modern Molecular Taxonomy
206
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
206
Applications of Molecular Taxonomy
159
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
159
RNA-seq
10.5K
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
10.5K
Ribosome Profiling
3.7K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
3.7K

