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A cross-platform Graphical User Interface (GUI) for running MSFragger and Philosopher - powered pipeline for comprehensive analysis of shotgun proteomics data

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I found an issue (or rediscovered?) I have a custom database with a sequence of high abundant, spike in protein. If I add the sequence as >alphaamylase it is identified...

Philosopher

Dear FragPipe team, As a new user, I ran into an issue when attempting to run 'open search' using the latest version of Fragpipe. The error occurs during PSM validation...

Crystal-C

I encountered some unusual problems, when I use fragpipe to analysis a batch of .raw files, the same parameters on different computers sometimes return error as "This application has requested...

Crystal-C

Hello, I have been using the isobaric quant tool in FragPipe 17 and now version 18, and I wanted to report an unexpected result when using different "ratio to abundance"...

TMT-Integrator

The Peptides which are reported in the ion_label_quant.tsv, in the modified sequence, are mapped directly to fasta file based on sequence matching, but often that peptide couldn't have arisen from...

Philosopher
MSFragger

I'm interested in extracting the list of matched b/y ions (not just total number of matched ions) for each PSM identified by MSFragger. Could you kindly instruct me on how...

enhancement
MSFragger

This is a bug reported by emails. I put it here in case we forget it. It also let potential affected users know: human contaminant proteins are always not marked...

Philosopher

I'm using philosopher.yml for TMT quantification. I noticed that even though I don't apply any normalisation or correction the TMT abundances on peptide level differ from the abundances on protein...

Philosopher

Hi, i would like to use MSFragger to generate a library from DDA PASEF data for a subsequent diaPASEF search with DIA-NN. Overall, this works. However, when looking at the...

speclib

Hi, as a QC, I usually compare the %ID I get in each experiment (i.e. #PSMs vs. total MSMS scans). Where do I find those values in the FragPipe output?...

enhancement