The sequence of peptide/protein is important to study the biological function of the peptide/protein. However, complete characterization of peptides/proteins, including post-translational modifications (PTMs), sequence mutations and variants, is very challenging. De novo sequencing is a process in which amino acid sequences are directly interpreted from tandem mass spectra without the assistance of a database.
• Sequence analysis of protein/peptide, of which databases are unavailable
• PTMs analysis of protein/peptide, of which databases are unavailable
• Sequence analysis of CDR region or full-length of antibodies