Figure 6

The 45 kDa band in SDS-PAGE was identified as HA protein by LC-MS/MS analysis. (A) An example MS/MS spectrum of the tryptic peptides at m/z 1341.4837 from HA protein; the peptide fragments of y- and b-ions correspond to the sequence SELEYGNCNTR. (B) The experimental and calculated molecular masses and Mascot scores of the eight matched sequences.