This started in the days of MALDI-TOF peptide mass fingerprinting, when we need a quick way to compare coverage of several proteins. From an initial kludge in Excel, I wrote an early iteration of this tool in Livecode, where it survived and evolved for a long time, though users did have to download an executable - increasingly dodgy!
So, here we have a safe, on-line tool that has been extended as well. I have no idea if it is still of value, but maps can now be decorated
What is it? A protein digestion and peptide-mapping tool: paste in a sequence, choose a protease (trypsin, LysC, ArgC, GluC...), and get back the resulting peptides as an annotated table, with custom text labels, colours and markers placeable at any position. Built for proteomics work, with Claude doing the implementing.
Try it: PeptideMapper