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PSORTdb Logo.gif
Description protein subcellular localization database
Organisms Prokaryotes
Research center Simon Fraser University
Laboratory Department of Molecular Biology and Biochemistry
Authors Sébastien Rey
Primary citation Rey & al. (2005)[1]
Release date 2010 (v. 2.0)
License GNU General Public License
Version 2.0

PSORTdb is a database of protein subcellular localization (SCL) for bacteria and archaea. It is a member of the PSORT family of bioinformatics tools.[1] The database consists of two datasets, ePSORTdb and cPSORTdb, which contain information determined through experimental validation and computational prediction, respectively. The ePSORTdb dataset is the largest curated collection of experimentally verified SCL data.[2]

PSORTdb was initially developed in 2005 in order to contain protein subcellular localization predictions for bacteria.[3] The computational predictions in the cPSORTdb dataset were generated by the PSORT tool PSORTb 2.0, the most accurate SCL predictor of the time.[3][4]

The second and current version of PSORTdb was released in 2010. Entries in the database are automatically generated as newly sequenced prokaryotic genomes become available through NCBI. As of the second release, ePSORTdb contained over 12,000 entries for bacterial proteins and 800 entries for archaeal proteins; cPSORTdb contained SCL predictions for over 3,700,000 proteins in total. The ePSORTdb data is derived from a manual literature search (using PubMed) as well as Swiss-Prot annotations. The cPSORTdb predictions are generated using the updated PSORTb 3.0 tool.[3]

PSORTdb can be accessed through a web interface or via BLAST. The entire database is also available for download under the GNU General Public License. Each term in the database is associated with an identifier from the Gene Ontology in order to allow integration with other bioinformatics resources.[1]

As of 2014, PSORTdb is maintained through the laboratory of Fiona Brinkman at Simon Fraser University.[5][6]

See also[edit]


  1. ^ a b c Rey, Sébastien; Acab Michael; Gardy Jennifer L; Laird Matthew R; deFays Katalin; Lambert Christophe; Brinkman Fiona S L (Jan 2005). "PSORTdb: a protein subcellular localization database for bacteria". Nucleic Acids Res. England. 33 (Database issue): D164–8. PMC 539981Freely accessible. PMID 15608169. doi:10.1093/nar/gki027. 
  2. ^ "PSORTdb :: Home". Retrieved 1 September 2014. 
  3. ^ a b c Yu, N. Y.; Laird, M. R.; Spencer, C.; Brinkman, F. S. L. (10 November 2010). "PSORTdb--an expanded, auto-updated, user-friendly protein subcellular localization database for Bacteria and Archaea". Nucleic Acids Research. 39 (Database): D241–D244. PMC 3013690Freely accessible. PMID 21071402. doi:10.1093/nar/gkq1093. 
  4. ^ Gardy, JL; Laird, MR; Chen, F; Rey, S; Walsh, CJ; Ester, M; Brinkman, FS (Mar 1, 2005). "PSORTb v.2.0: expanded prediction of bacterial protein subcellular localization and insights gained from comparative proteome analysis.". Bioinformatics (Oxford, England). 21 (5): 617–23. PMID 15501914. doi:10.1093/bioinformatics/bti057. 
  5. ^ "PSORTdb :: About". Retrieved 1 September 2014. 
  6. ^ "Computational Tools Developed - Fiona Brinkman Laboratory". Retrieved 1 September 2014. 

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