Owen Tsai

Hi @guoci thank you for the prompt response. I am still getting KeyError: 'J' but it stops on a different line in convert.py (see log_07132022_updated_easypqp.txt) [log_07132022_updated_easypqp.txt](https://github.com/Nesvilab/FragPipe/files/9105347/log_07132022_updated_easypqp.txt)

Hi @guoci, thank you for working on it. I'm getting a different error message now (RuntimeError) but it seems like it's still related to the B and J modifications. Owen...

@guoci thank you for working on it. In the meantime, is there a way to search for the heavy-labelled peptides without changing the amino acid residues in the sequence database?