Figure 3.
Differential mobility assay of a mixture of phosphorylated and unphosphorylated forms of the same peptide with a low-activity reactor. Time is in units of fractions transferred in the phosphorylated axis and in seconds in the dephosphorylated axis. The image was overexposed to highlight the lower abundance impurities. The zero migration times are arbitrary. Dynabeads were used in this reactor.