L5170
Leukotriene A4 Hydrolase human
recombinant, expressed in E. coli
Synonym(s):
LTA-4 hydrolase, LTA4, LTA4H
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54
recombinant
expressed in E. coli
description
contains C-terminal his-tag
Assay
≥90% (SDS-PAGE)
mol wt
~69 kDa
NCBI accession no.
shipped in
dry ice
storage temp.
−70°C
Gene Information
human ... LTA4H(4048)
Application
Leukotriene A4 Hydrolase human (LTA4H) is a drug target for anti-inflammation, and for cancer prevention and therapy. It is also suitable for screening inhibitors of Leukotriene B4 synthesis. LTA4H is used to study allergic asthma and airway hyperresponsiveness .
Biochem/physiol Actions
Leukotriene A4 Hydrolase human (LTA4H) is a bifunctional zinc metalloenzyme that converts LTA4 into Leukotriene B4, and also demonstrates aminopeptidase activity. Leukotriene B4 is a lipid chemoattractant that plays critical roles in inflammaton, immune responses, host defenses against infections, and lipid homeostasis. Inhibition of LTA4H in a mouse model decreases LTB4 in the airways and attenuates airway inflammation and airway hyperreactivity through modulation of T cell and dendritic cell function .
Physical form
Supplied as a solution in 100mM Tris, pH 8.0, containing 20% glycerol and 100mM potassium chloride.
Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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L Orning et al.
The Journal of biological chemistry, 269(15), 11269-11273 (1994-04-15)
Leukotriene-A4 hydrolase (EC 3.3.2.6) cleaved the NH2-terminal amino acid from several tripeptides, typified by arginyl-glycyl-aspartic acid, arginyl-glycyl-glycine, and arginyl-histidyl-phenylalanine, with catalytic efficiencies (kcat/Km) > or = 1 x 10(6) M-1 s-1. This exceeds by 10-fold the kcat/Km for its lipid
Mikell Paige et al.
Journal of immunology (Baltimore, Md. : 1950), 192(11), 5059-5068 (2014-04-29)
The leukotriene A4 hydrolase (LTA4H) is a bifunctional enzyme with epoxy hydrolase and aminopeptidase activities. We hypothesize that the LTA4H aminopeptidase activity alleviates neutrophilic inflammation, which contributes to cigarette smoke (CS)-induced emphysema by clearing proline-glycine-proline (PGP), a triamino acid chemokine
John W Newman et al.
Progress in lipid research, 44(1), 1-51 (2005-03-08)
The epoxide hydrolases (EHs) are enzymes present in all living organisms, which transform epoxide containing lipids by the addition of water. In plants and animals, many of these lipid substrates have potent biologically activities, such as host defenses, control of
J Haeggström et al.
The Journal of biological chemistry, 261(14), 6332-6337 (1986-05-15)
Mouse liver homogenates transformed leukotriene A4 into a 5,6-dihydroxy-7,9,11,14-eicosatetraenoic acid. This novel enzymatic metabolite of leukotriene A4 was characterized by physical means including ultraviolet spectroscopy, high performance liquid chromatography, and gas chromatography-mass spectrometry. After subcellular fractionation, the enzymatic activity was
M Minami et al.
The Journal of biological chemistry, 262(29), 13873-13876 (1987-10-15)
We have isolated a near full-length cDNA encoding human leukotriene A4 hydrolase, which synthesizes a potent chemotactic and spasmogenic compound, leukotriene B4. A human spleen cDNA library was screened with a 48-mer oligonucleotide probe, synthesized according to the partial amino
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