背景:Leukotriene A-4 hydrolase; also known as LTA-4 hydrolase; Leukotriene A (4) hydrolase; LTA4H and LTA4; is cytoplasm protein which belongs to thepeptidase M1 family.
LTA4H hydrolyzes an epoxide moiety of leukotriene A4 (LTA-4) to form leukotriene B4 (LTB-4).
This enzyme also has some peptidase activity.
The leukotrienes (LTs) are a class of structurally related lipid mediators involved in the development and maintenance of inflammatory and allergic reactions.
In the biosynthesis of LTs; arachidonic acid was converted into the unstable intermediate epoxide LTA4; which may in turn be conjugated with glutathione to form the spasmogenic LTC4; or hydrolyzed into the proinflammatory lipid mediator LTB4 in a reaction catalyzed by Leukotriene A4 hydrolase (LTA4H).
LTB4 is a classical chemoattractant of human neutrophils and triggers adherence and aggregation of leukocytes to vascular endothelium; and also modulates immune responses.
As a bifunctional zinc metalloenzyme; LTA4H also exhibits an anion-dependant arginyl aminopeptidase activity of high efficiency and specificity in addition to its epoxide hydrolase activity.
LTA4H is regarded as a therapeutic target for inflammation.
仕様
サイズ:100ug
種由来:Human
発現宿主:E.coli
純度:>97 % as determined by reducing SDS-PAGE.
エンドトキシン濃度:<0.005 EU per μg of the protein as determined by the LAL method.
アクセッションNo.:P17931
アミノ酸配列:Met 1-Ile 250
遺伝子構造:A DNA sequence encoding the human Galectin3 (P17931) (Met 1-Ile 250) was expressed and purified.
保存条件:Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.