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Updated: Feb 5, 2026

The ITS2 Database
Published on: March 12, 2012
Pseudocohnilembus persalinus genome database - the first genome database of facultative scuticociliatosis pathogens
Wei Wei1,2, Kai Chen1,2, Wei Miao1
1Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
Background:
Pseudocohnilembus persalinus, a unicellular ciliated protozoan, is one of commonest facultative pathogens. We sequenced the macronuclear genome of P. persalinus in 2015, which provided new insights into its pathogenicity.
Results:
Here, we present the P. persalinus genome database (PPGD) ( http://ciliates.ihb.ac.cn/database/home/#pp ), the first genome database for the scuticociliatosis pathogens. PPGD integrates P. persalinus macronuclear genomic and transcriptomic data, including genome sequence, transcript, gene expression data, and gene annotation, as well as relevant information on its biology, morphology and taxonomy. The database also provides functions for visualizing, analyzing, and downloading the data.
Conclusion:
PPGD is a useful resource for studying scuticociliates or scuticociliatosis. We will continue to update the PPGD by integrating more data and aim to integrate the PPGD with other ciliate databases to build a comprehensive ciliate genome database.
Insights
A new database, the Pseudocohnilembus persalinus genome database (PPGD), offers integrated genomic and transcriptomic data for this common pathogen. This resource aids research into scuticociliates and scuticociliatosis.
Area of Science:
- Microbiology
- Genomics
- Bioinformatics
Background:
- Pseudocohnilembus persalinus is a unicellular ciliated protozoan and a common facultative pathogen.
- Previous sequencing of the P. persalinus macronuclear genome in 2015 offered initial insights into its pathogenicity.
Purpose of the Study:
- To present the Pseudocohnilembus persalinus genome database (PPGD).
- To provide a centralized resource for scuticociliatosis pathogens.
Main Methods:
- Integration of macronuclear genomic and transcriptomic data for P. persalinus.
- Inclusion of genome sequence, transcript, gene expression, and annotation data.
- Compilation of biological, morphological, and taxonomic information.
Main Results:
- The PPGD is the first genome database for scuticociliatosis pathogens.
- The database includes comprehensive data on P. persalinus, such as genome sequence, gene expression, and annotations.
- User-friendly functions for data visualization, analysis, and download are provided.
Conclusions:
- The PPGD serves as a valuable resource for studying scuticociliates and scuticociliatosis.
- Future updates will incorporate additional data and integration with other ciliate databases to create a comprehensive resource.
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