Gclust

Gclust Server

Databases of homologous proteins in many organisms, automatically constructed but from a biologist's viewpoint. Here, homologs include mostly orthologs but also close paralogs.

Developed by Naoki Sato, University of Tokyo

New!! Gclust2024 is now available. The new dataset includes 255 organisms. 53 cyanobacteria, 11 Archaea, 137 bacteria, 41 plants and algae, 12 protists and fungi, and 8 animals. Cyanoclust2018 is specialized for analyzing cyanobacteria and plastids including more species. These will be useful in comparative genomics of photosynthetic organisms.
This is an extention of Gclust2021, with tomato, soybean, Mesostigma, and two species of Nannochloropsis.
Recent update!! Melainaclust2024 is added. This dataset is intended to analyze Melainabacteria, a non-photosynthetic, close relative of Cyanobacteria.

Note Comparison of promoter sequences of Arabidopsis, rice and moss genes in eash of the Gclust clusters is available in the PPDB (plant promoter db) Server constructed by Dr. Y. Yamamoto at Gifu University. Use "Homologue Gene Search" in the PPDB Server. Currently, there is no direct link between the PPDB data and the Gclust data, but hopefully, we will establish links between them.

Please use menu buttons on the left.

Click 'Select Dataset' on the menu button to start search.
Use 'Search Help' to get help.
Read 'About Gclust' to know how Gclust functions.
Now, old versions are available in ' Old versions'.

Recommendations! Gclust is not almighty. Read what kind of proteins can be searched in the Gclust databases, and which proteins are difficult to analyze. Coordinated use of NCBI, Genome Net, Kazusa and TAIR with Gclust will be most effective.

Nomenclature of sequence ID and definition of version number are described in Additional Information document

A document in Japanese is also available as a PDF file. Document.
A more recent user guide in Japanese, which was distributed in the JSPP meeting in Sapporo, March 2008, is also available.User Guide
Single organism list is available for some plants and cyanobacteria. See Download page.

Feedback is welcome. If you have any comments or questions, use this link to E-mail the author.

Last update: Feb. 2, 2024.