Using the Ion Fragmentation Calculator

6.5 Using the

6

Ion Fragmentation Calculator

 

 

 

 

Description The Ion Fragmentation calculator generates a list of possible

 

 

fragment masses for a peptide sequence you enter. It can

 

calculate the masses for:

 

• Multiply charged fragments you may see in Mariner

 

data.

 

• PSD fragments you may see in Voyager data.

 

Using the IonFragmentationcalculator

If the calculated fragments are present in the current data file, you can label fragments.

The calculator includes a list of defined amino acids and residues that you can add to as needed.

To use the Ion Fragmentation Calculator:

1.Display the spectrum of interest.

2.Click the Spectrum window to activate it.

3.From the Applications menu, select Ion Fragmentation Calculator.

The Ion Fragmentation Calculator dialog box (Figure 6-15)is displayed.

Data ExplorerSoftware User’s Guide

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