Hello All,

I'm using the latest stable release of TPP (4.3.1) to search some
phospho ETD data.
I've modified my tandem input file for ETD:
scoring, x ions:        no
scoring, y ions:        no
scoring, z ions:        yes
scoring, a ions:        no
scoring, b ions:        no
scoring, c ions:        yes

residue, potential modification mass:   15.994...@m,5...@c
residue, potential modification motif:  79...@[sty]

Keeping all of the other parameters fixed.

X!Tandem seems to run fine and so does xinteract. However, when I look
at the number of matched ions for any given spectrum, this field
always reports zero.

Is anyone else seeing this?
Is this a bug or have I forgotten some critical flag for analyzing ETD
data?

I'm running TPP v.4.3.1 on RHEL 5.2 (64-bit). The command I execute at
the terminal is: xinteract -Opd -drev  output.XML

Any and all advice is welcomed.
Thanks


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