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Information on EC 3.3.2.6 - leukotriene-A4 hydrolase

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EC Tree
     3 Hydrolases
         3.3 Acting on ether bonds
             3.3.2 Ether hydrolases
                3.3.2.6 leukotriene-A4 hydrolase
IUBMB Comments
This is a bifunctional zinc metalloprotease that displays both epoxide hydrolase and aminopeptidase activities [4,6]. It preferentially cleaves tripeptides at an arginyl bond, with dipeptides and tetrapeptides being poorer substrates (see EC 3.4.11.6, aminopeptidase B). It also converts leukotriene A4 into leukotriene B4, unlike EC 3.3.2.10, soluble epoxide hydrolase, which converts leukotriene A4 into 5,6-dihydroxy-7,9,11,14-icosatetraenoic acid [3,4]. In vertebrates, five epoxide-hydrolase enzymes have been identified to date: EC 3.3.2.6 (leukotriene A4 hydrolase), EC 3.3.2.7 (hepoxilin-epoxide hydrolase), EC 3.3.2.9 (microsomal epoxide hydrolase), EC 3.3.2.10 (soluble epoxide hydrolase) and EC 3.3.2.11 (cholesterol-5,6-oxide hydrolase) .
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Word Map
The enzyme appears in viruses and cellular organisms
Synonyms
lta4 hydrolase, lta4h, leukotriene a4 hydrolase, leukotriene a(4) hydrolase, leukotriene a4 hydrolase/aminopeptidase, leukotriene-a4-hydrolase, lta4-h, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
leukotriene A4 + H2O = leukotriene B4
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PATHWAY SOURCE
PATHWAYS