Peptide to protein mapping

Script for the visualization of the peptide coverage (peptide-to-protein mapping) of a particular protein of interest from a MaxQuant output.

How to use?

1. Download this repo to your local PC.
2. Unzip the files and initialize the downloaded folder as an R Studio Project.
3. Add both the peptides.txt and the proteinGroups.txt files from your MaxQuant output to the Data folder.
4. Open the project in R Studio.
5. Open the script protein_coverage_visualization.R
6. In the script (line 7), set proteinid to the Uniprot protein you want to visualize (as in the column Leading.razor.protein of your MaxQuant output).

• Example: proteinid <- "A0A024QZX5"

7. Run Source at the upper right corner of your script.
8. A new folder with a TIFF file should have been generated with your visualization. The plot should also be shown in the R Studio session.