A6481
Allene Oxide Synthase from Parthenium argentatum
recombinant, expressed in E. coli, 25,000-40,000 units/mg protein
Synonym(s):
AOS, Allene Oxide Synthase Parthenium argentatum
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About This Item
recombinant
expressed in E. coli
form
solution
specific activity
25,000-40,000 units/mg protein
packaging
vial of ~300 μg
shipped in
dry ice
storage temp.
−20°C
Application
Allene Oxide Synthase is a potent anti-oxidant enzyme used to remove lipid hydroperoxides in various biological samples. It may also be used to study stress induced gene expression in plants [1]. Product A6481 is from Parthenium argentatumand is supplied as a solution in phosphate buffered saline.
Biochem/physiol Actions
Allene oxide synthase converts lipoxygenase derived fatty acid hydroperoxides to unstable allene epoxides. In plants, allene oxide is a precursor of jasmonic acid, which is important for growth regulation [2].
Potent anti-oxidant enzyme to remove lipid hydroperoxides in biological samples.
Unit Definition
One unit will cause a change in A234nm of 1.0 per minute at pH 7.0 at 25 °C in a 13S-HPOD((13(S)-hydroperoxy-(9Z,11E)-octadecanoic Acid) reduction assay
Physical form
Supplied as a solution in phosphate buffered sale pH 7.2
Storage Class
12 - Non Combustible Liquids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Z Pan et al.
The Journal of biological chemistry, 270(15), 8487-8494 (1995-04-14)
Guayule plants accumulate large quantities of rubber within parenchyma cells of their stembark tissues. This rubber is packed within discrete organelles called rubber particles composed primarily of a lipophilic, cis-polyisoprene core, small amounts of lipids, and several proteins, the most
M Hamberg
Biochemical and biophysical research communications, 156(1), 543-550 (1988-10-14)
Incubation of 13(S)-hydroperoxy-9(Z),11(E),15(Z)-octadecatrienoic acid with corn (Zea mays L.) hydroperoxide dehydrase led to the formation of an unstable allene oxide derivative, 12,13(S)-epoxy-9(Z),11,15(Z)-octadecatrienoic acid. Further conversion of the allene oxide yielded two major products, i.e. alpha-ketol 12-oxo-13-hydroxy-9(Z),15(Z)-octadecadienoic acid, and 12-oxo-10,15(Z)-phytodienoic acid
D J Siler et al.
The Journal of allergy and clinical immunology, 98(5 Pt 1), 895-902 (1996-11-01)
Natural rubber latex sensitization is caused by proteins from the latex of Hevea brasiliensis, the Brazilian rubber tree. Alternative non-cross-reactive latex rubber sources are needed for the manufacture of nonallergenic medical devices (e.g., catheters) that require elasticity, which is not
D Laudert et al.
Plant molecular biology, 31(2), 323-335 (1996-05-01)
Allene oxide synthase, an enzyme of the octadecanoid pathway to jasmonates, was cloned from Arabidopsis thaliana as a full-length cDNA encoding a polypeptide of 517 amino acids with a calculated molecular mass of 58705 Da. From the sequence, an N-terminal
S Sivasankar et al.
Plant physiology, 122(4), 1335-1342 (2000-04-12)
Allene oxide synthase (AOS; hydroperoxide dehydratase; EC 4.2.1.92) catalyzes the first step in the biosynthesis of jasmonic acid from lipoxygenase-derived hydroperoxides of free fatty acids. Using the AOS cDNA from tomato (Lycopersicon esculentum), in which the role of jasmonic acid
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