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Updated: Jul 3, 2026

Identification of Rare Bacterial Pathogens by 16S rRNA Gene Sequencing and MALDI-TOF MS
Published on: July 11, 2016
[Application of gyrB in the identification of closely related bacteria-- a review]
Xianmei Li1, Xiaofen Wang, Hongyan Yang
1College of Agronomy and Biotechnology, Center of Biomass Engineering, China Agricultural University, Beijing 100094.
Abstract:
The single-copied gyrB gene, encoding the subunit B of gyrase and distributing universally in all bacteria, has the average substitution rate of 0.7%-0.8% per million years. It's proved that this region could be used to discriminate and identify the closely related species of different bacteria such as Pseudomonoas, Bacillus, Vibrio, Enterobacteriaceae, Mycobacteria, Aeromonas, Lactic acid bacteria et.al. It also can be used of quantitative or restriction fragment analysis of bacteria with the aid of species-specific primers or combined with DGGE (denaturing gradient gel electrophoresis). It really brings new promise for the identifying closest isolates or fingerprinting population due to overcoming the shortage of undistinguishing them acutely with the non-protein-encoding genes such as 16S rDNA or ITS (internal transcribed spacer) DNA. It's an important new molecular marker for researches of closely related species and becoming an attractive topic in current microbial research world.
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