Fig. 3.

Peptide mapping of tryptic T1L virion digests. 5 mg/ml purified T1L virions were digested with 5 μg/ml trypsin at 37°C. At various time intervals, aliquots were collected and analyzed by MALDI-Qq-TOFMS. Each peak was then selected and subjected to MS/MS analysis (see Fig. 4) to identify each peptide fragment (compiled in Table 2A). Each peak is labeled in the time frame at which it is first detected.