Figure 1.

Various mass shifts that could be generated from a Ubl. (a) An example of theoretical fragmentation patterns and cleavage sites from UFM1_HUMAN. (b) A theoretical spectrum of b-ions from Ubl-modified target peptide, without y-ions from Ubl-modified target peptide and b-ions from Ubl.

Kang and Yi BMC Bioinformatics 2011 12(Suppl 14):S8   doi:10.1186/1471-2105-12-S14-S8