HMDB 5.0: the Human Metabolome Database for 2022.

Area of Science:

• Metabolomics
• Bioinformatics
• Biochemistry

Background:

• The Human Metabolome Database (HMDB) has served as a key resource for human metabolite information since 2007.
• Continuous evolution is necessary to meet the demands of the metabolomics community and technological advancements.

Purpose of the Study:

• To introduce the significant upgrades and enhancements in the HMDB 5.0 release.
• To improve the database's usability, data depth, and accessibility for researchers.

Main Methods:

• Expansion of metabolite entries to 217,920 compounds.
• Enhancement of metabolite descriptions, spectral data (NMR, MS, retention indices, collision cross-sections), and pathway visualizations.
• Improvements to search functionalities and website interface.

Main Results:

• A near doubling of metabolite entries in HMDB 5.0.
• Introduction of new and improved data types, including predicted spectral datasets.
• Enhanced visualization and search tools for better compound identification and data exploration.

Conclusions:

• HMDB 5.0 offers substantial improvements in data quantity, quality, and accessibility.
• The upgraded database is poised to enhance research across human metabolomics, exposomics, lipidomics, and clinical chemistry.