SSAO, Semicarbazide-sensitive amine oxidase

VAP-1 is present in endothelial cells, smooth muscle cells, adipocytes, and in follicular dendritic cells. The majority of VAP-1 is stored within intracellular granules and translocated to the endothelial surface on inflammation. Structurally it belongs to enzymes called semicarbamizide-sensitive amine oxidases. These enzymes deaminate primary amines in a reaction producing hydrogen peroxide, aldehyde, and ammonia. VAP-1 possesses both adhesive and enzymatic properties in vitro. VAP-1 mediates leukocyte trafficking to sites of inflammation.