QC_with_OpenMS

Uses X!Tandem to identify peptides and then uses various Meta Nodes for QC metrics.
Requires mzML spectrum files as input, and a protein database has to be specified in fasta format within the ID meta node.
The outputs are various tables and visualizations found in the QC meta nodes.

Example input data:
To download the data from the archive linked below, check the box on the folder and click on the download button (arrow) on the top left.
Download and unpack the "Example_Data" data into a directory "Example_data" right inside your KNIME workspace.

External resources

• Home of the OpenMS plugin
• Example Data