Acyloxyacyl hydrolase (AOAH)

Removes the secondary (acyloxyacyl-linked) fatty acyl chains in the lipid A region of bacterial lipopolysaccharides (PubMed:1883828, PubMed:8089145, PubMed:29343645). By breaking down LPS, terminates the host response to bacterial infection and prevents prolonged and damaging inflammatory reactions (By similarity).

In peritoneal macrophages, seems to be important for recovery from a state of immune tolerance after infection by Gram-negative bacteria (By similarity). .