Jon Jongsik Chun, Ph.D.


Jon is a scientist & entrepreneur dedicated to developing bioinformatics related to bacterial systematics, genomics, and microbiome. He is a professor at Seoul National Univ. and founder of ChunLab, Inc. He is best known as a creator of EzBioCloud (formerly EzTaxon) database, and recipient of Bergey Award.
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Course: Prokaryotic Taxonomy and Microbiome

This is a collection of articles and resources for prokaryotic […]

Identification of Lachnospiraceae bacterium 5_1_63FAA

The genome sequence that is labeled as “Lachnospiraceae bacterium 5_1_63FAA” […]
bacterial colony

Bacterial Nomenclature 101 and How to Describe a New Species

A short survival guide for microbiologists How are names controlled? […]

Identification of Ruminococcus sp. 5_1_39BFAA

Many genome sequences in public databases are used in metagenomic […]

[Quiz] Comparing BLAST and EzBioCloud search

Objectives: Understanding the DNA sequence searching algorithm and difference from […]

Bacterial identification in clinical diagnostic laboratories using 16S rRNA sequences

Bacterial infection may be caused by either new species or […]

Taxonomy of Clostridium clusters XIVa and IV

Clostridium clusters XIVa and IV are groups of bacteria that […]

[Quiz] identification of bacterial isolates using genome sequence

In this course, you will learn how to identify bacterial […]

[Quiz] Identification of bacterium in a probiotic product

Probiotics are defined as live microorganisms that are thought to […]

Bacterial species concept explained

What is a species? A species is often defined as […]

Species-level microbiome analysis using EzBioCloud 16S Database

Jon Jongsik Chun, Ph.D.Jon is a scientist & entrepreneur dedicated […]

Comparison between V3V4 and full-length sequencing of 16S rRNA genes

Jon Jongsik Chun, Ph.D.Jon is a scientist & entrepreneur dedicated […]

Erroneous DNA G+C content data determined by HPLC and thermal melting experiments are no longer required for species descriptions

In the recent paper (Kim et al., 2015), we evaluated […]

How to calculate 16S rRNA sequence similarity values for bacterial taxonomy: Why BLAST should be avoided

Nucleotide sequence similarity values are widely used for identification and […]