Dear Group,
I ran  xinteract on a pepXML file that was generated from a Mascot
search, and it exited with an error message.

command "/mnt/sanfs/APCF-PROD/APCF_WEB/tpp/cgi-bin/PepXMLViewer.cgi -
I /mnt/sanfs/APCF-PROD/results/tpp/2010-06-08/simon-
J2468.pepprophet.xml" exited with non-zero exit code: 11

I am afraid I do not know what this error means. I found the input
pepXML only had a few number of entries, so am I right to think that
this is cause of the error?(The Mascot search was done using
incorrect parameters, resulting in a poor output)
I have two questions:
(1) How much data do you need to provide a satisfactory run for
peptideProphet? Is it possible to check this before calling xinteract?
(2) I looked at the .dat=>pepXML conversion via Mascot2XML. I expected
a 1:1 mapping for proteins, however I found only a subset of proteins
being placed in the file. Is there some internal filtering that occurs
here? The scores were all low, which might have taxed any algorithm to
do this.

Much thanks for any assistance.
Simon Michnowicz

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