The Kazusa Metabolomics Portal

Metabolomics is analytical technologies to quantitatively detect as many as small molecules (metabolites) in organisms. Komics (Kazusa Metabolomics Database) is a web portal to the databases, tools and other information that were developed and produced through the metabolomics studies of the Shibata's Laboratory in Kazusa DNA Research Institute.

Most of the products were developed in the research project named "Development of Fundamental Technologies for Controlling the Material Production Process of Plants" (PMPj) supported by New Energy and Industrial Technlogy Development Organization (NEDO, Japan).

Food Metabolome Repository is now on public

Food Metabolome Repository

Food Metabolome Repository, which contains information of all peaks including unknowns obtained from more than 100 Japanese foods using LC-MS, is now available. The specificity of samples for an unknown compound of your interest may help further annotation and identification of the compound.


FlavonoidSearch released


FlavonoidSearch—a system for high-accuracy prediction of flavonoid aglycones using MS/MS spectra— is released.


MassChroViewer released


MassChroViewer tool is released. This is a 2-Dimensional data viewer for quality checking of LC-MS data. Retention time, m/z, and intensity of the ions in raw data (mzXML format) are visualized as x-axis, y-axis and strength of color. Zooming in/out and moving of the view area can be changed as Google-Map like mouse operations. The functions for overlay the extracted peaks, checking mass differences, MS/MS data browsing, compound database searching, browsing chemical structure of candidate compounds, and mass calculation of selected substructure can be used to check the quality of raw data and processed data.