Figure 1From: A phosphorylation map of the bovine papillomavirus E1 helicaseMALDI-qTOF MS analysis of E1 tryptic digest. Protein characterization by peptide mass fingerprinting allowed for over 50% sequence coverage of the E1 phosphoprotein. Letters "a" and "b" indicate two peaks of low signal intensity corresponding to the phosphopeptides LDLIDEEEDpSEEDGDSMR and VLpTPLQVQGEGEGR, respectively.Back to article page