UniCarb-DB: An MS/MS Experimental Glycomic Fragmentation Database

Area of Science:

• Glycomics
• Mass Spectrometry
• Biochemistry

Background:

• Glycosylation is a critical posttranslational modification influencing cellular functions.
• The glycome, encompassing all glycans in a cell or tissue, is complex and challenging to analyze.
• Existing glycomic resources require efficient data management and analysis tools.

Purpose of the Study:

• To introduce UniCarb-DB, a comprehensive spectral library for glycomics.
• To provide mass spectrometry (MS) experimentalists with a tool for glycan structure elucidation.
• To enhance the integration of glycomic data into research workflows.

Main Methods:

• Development of a spectral library (UniCarb-DB) containing over 1500 entries of MS/MS fragment data.
• Inclusion of metadata, experimental conditions, and biological origin for each entry.
• Association of glycan structures with the GlyTouCan repository for broader resource access.

Main Results:

• UniCarb-DB currently houses over 1000 unique glycan structures.
• The database supports direct utilization by MS experimentalists for converting MS data into structural information.
• Online search tools enable browsing isomeric structures and performing peak matching searches.

Conclusions:

• UniCarb-DB significantly advances glycomics research by offering a robust spectral library.
• The database facilitates quantitative and qualitative glycomics analysis through advanced MS tools.
• UniCarb-DB is designed for seamless integration with commercial and open-access MS software.