GZMM and bacterial infectious disease: The protein-protein docking predicts the structure of protein complexes and identifies the several interacting residues, specifically, the binding sites formed by H-bond during bacterial infection consist of VAL154-SER42, ARG153-VAL27 in Complex 1, THR20-HIS79, SER23-ASP51, GLY25-MET1, GLY25-ASN2, PRO94-LYS78 in Complex 2, and ASN35-SER14, ARG38-ASP12, ARG48-GLU34, GLN368-ASP74 in Complex 3 that might be a target region for drug development in the future study.