Extracellular metalloprotease that contributes to pathogenicity. Binds 1 zinc ion per subunit. Expression is up-regulated during infection. Belongs to the peptidase M14 family. ARB_07026 and ARB_07027 have been merged into one gene ARB_07026/ARB_07027. ARB_07026 and ARB_07027 have been merged into one gene ARB_07026/ARB_07027.