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Provides a de novo peptide sequencing method for ExD spectra. NovoExD is a modified spectrum graph with multiple edge types, denoted as graph with multiple edge types (GMET), derived from to model ExD spectra. It uses a spectrum graph model, considers multiple peptide tags to separate a peptide into small mass regions, and integrates fragment ion charge and amino acid composition (AAC) information. It then combines small regions to output complete sequences of candidate peptides.

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NovoExD classification

NovoExD specifications

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Command line interface
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NovoExD distribution


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NovoExD support


  • Fang-Xiang Wu <>

Additional information

Access available upon request.


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Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada; Division of Biomedical Engineering and Department of Computer Science, University of Saskatchewan, Saskatoon, SK, Canada; Division of Biomedical Engineering and Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada

Funding source(s)

Supported by Natural Sciences and Engineering Research council of Canada (NSERC).

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