catalytic activity:(7E,9E,11Z,14Z)-(5S,6S)-5,6-epoxyicosa-7,9,11,14-tetraenoate + H(2)O = (6Z,8E,10E,14Z)-(5S,12R)-5,12-dihydroxyicosa-6,8,10,14-tetraenoate.,cofactor:Binds 1 zinc ion per subunit.,function:Hydrolyzes an epoxide moiety of leukotriene A4 (LTA-4) to form leukotriene B4 (LTB-4). The enzyme also has some peptidase activity.,pathway:Lipid metabolism; leukotriene B4 biosynthesis.,similarity:Belongs to the peptidase M1 family.,subunit:Monomer.,
Cytoplasm .
Isoform 1 and isoform 2 are expressed in monocytes, lymphocytes, neutrophils, reticulocytes, platelets and fibroblasts.
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