De novo peptide sequencing with InstaNovo: Accurate, database-free peptide identification for large scale proteomics experiments
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Question about de novo prediction of own datasets #26
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JannikSchneider12 opened 7 months ago
Hello,
I wanted to try the model on my mgf files and I converted them with the provided script. The resulting .ipc file looks as follows:
Since I don't have any peptide sequences and want to predict new ones.
However when I am trying to run the model with this command:
!python -m instanovo.transformer.predict /content/consensus_spectra.ipc /content/checkpoints/instanovo_yeast.pt --denovo --output_path /content/
I am getting this error:
INFO:root:Initializing inference. INFO:root:Loading data from /content/consensus_spectra.ipc INFO:root:Data loaded, evaluating 100.0%, 10931 samples in total. INFO:root:Knapsack path missing or not specified, generating... INFO:root:Scaling masses. INFO:root:Initializing chart. INFO:root:Performing search. Traceback (most recent call last): File "/usr/lib/python3.10/multiprocessing/queues.py", line 244, in _feed obj = _ForkingPickler.dumps(obj) File "/usr/lib/python3.10/multiprocessing/reduction.py", line 51, in dumps cls(buf, protocol).dump(obj) _pickle.PicklingError: Can't pickle <class 'exceptions.ColumnNotFoundError'>: import of module 'exceptions' failed Traceback (most recent call last): File "/usr/lib/python3.10/multiprocessing/queues.py", line 244, in _feed obj = _ForkingPickler.dumps(obj)
Is this because of the missing peptide sequence? And if so, how can I use the model to predict unidentified spectra?
Thanks for your time and help