LIPA and bacterial infectious disease: While the former secretes numerous exoproteins that participate in the bacterial infection process, including Exotoxin A (PEA), Protease IV, Elastase A and B (LasA and LasB), Lipase A and C (LipA and LipC), and Phospholipase C (PLC), the latter only secretes the low molecular weight alkaline phosphatases, LapA and LapB, that contribute to extracellular alkaline phosphatase activity under phosphate-limiting conditions (Ball et al., 2002; Bleves et al., 2010; Ball et al., 2012).