Lorikeet spectrum viewer

Annotate an MS/MS spectrum with the fragment ions of a peptide sequence, with optional terminal, fixed and variable modifications.

Mass in Daltons added to the peptide terminus, e.g. 42.0106 for N-terminal acetylation.

Fixed modifications

    Applied to every occurrence of the residue. Enter the mass of the modification, e.g. 57.021464 on C.

    Variable modifications

      Residue position in the sequence is 1-based. Enter a comma-separated list of positions if multiple positions in the sequence have the same modification.

      Enter one m/z, intensity pair per line, separated by whitespace. Example:

      283.751526 6.493506
      287.601379 11.096813
      295.031097 2.801403
      Lorikeet

      Lorikeet Spectrum Viewer is a JavaScript plugin for jQuery that uses a modified version of the Flot plotting library. Source code and documentation are on GitHub.