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Comparison of the GH18 domains of the chitinases from PA, L. monocytogenes, L. pneumophila (PDB: 6S2X), and S. Typhimurium (from left to right). The predicted structures from L. monocytogenes and S. Typhimurium were retrieved from the AlphaFold2 database (UniProt entries Q8Y619 and Q8ZS09, respectively).
