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In #JPM2023 news, $QSI Quantum-SI also presented on January 12, 2023. The company launched their Platinum protein sequencer a few weeks ago. 
The technology is not too dissimilar from the DNA sequencing Ion Torrent technology: a dense array of wells capture the proteins, then single molecule sequencing takes place independently in each well, and the different reactions for the different aminoacids are captured.
These different amino acids can include post-translational modifications (PTMs) which are common in most mammals and it's fair to say that they are little understood compared to fields such as genomics or transcriptomics.
