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
Pricing and availability is not currently available.
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 [1].
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 [1].
Physical form
Supplied as a solution in 100mM Tris, pH 8.0, containing 20% glycerol and 100mM potassium chloride.
Storage Class
12 - Non Combustible Liquids
wgk_germany
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
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
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
N Ohishi et al.
The Journal of biological chemistry, 262(21), 10200-10205 (1987-07-25)
Leukotriene A4 hydrolase from the human lung was purified to apparent homogeneity. The molecular weight (68,000-71,000), the amino acid composition, and the N-terminal amino acid sequence were similar to those of the human neutrophil enzyme but different from those of
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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