AHP1538 specifically recognises human 5-lipoxygenase (5-LO, also known as arachidonate 5-lipoxygenase) when phosphorylated at Ser523. 5-LO is an enzyme that catalyses the synthesis of leukotrienes (LT’s) from arachidonic acid (a polyunsaturated fatty acid), by the insertion of an oxygen into the arachidonic backbone. 5-LO requires calcium, ATP and the 5-LO-activating protein as cofactors for full activity. Leukotrienes are synthesised and secreted by leukocytes in response to immunologic or inflammatory stimuli, such as in asthma and allergic reactions. The biological effects of LT’s include leukocyte chemotaxis, pulmonary airway constriction, mucous hypersecretion, vasoconstriction and increased vascular permeability. I recent years 5-LO has also been implicated in the regulation of cell proliferation and apoptosis and has been found in a broad variety of cancer cells.
Species Cross-Reactivity
Target Species
Cross Reactivity
Primate
Expected from Sequence
Rat
Yes
Application
This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visitwww.abdserotec.com/protocols.
Application Name
Yes
No
Not Determined
Suggested Dilution
ELISA
Flow Cytometry
Immunohistology - Frozen
Immunohistology - Paraffin
Immunoprecipitation
Western Blotting(1)
1/1000
(1)
* For the detection of phosphoproteins, serine phosphatase inhibitors such as 10mM Sodium Fluoride should be added to the sample buffer. Milk or other casein-based blocking solutions are not recommended as casein is a phosphoprotein and its use can result in high background.
Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
Western Blotting
AHP1538 detects a doublet of approximately 80kDa in rat cortex lysate.
Storage
Store at +4oC or at -20oC if preferred.
Storage in frost-free freezers is not recommended.
This product should be stored undiluted. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
Shelf Life
18 months from date of despatch.
Antiserum Preparation
Antisera to phosphorylated 5-lipoxygenase were raised by repeated immunisations of rabbits with highly purified antigen. Purified IgG prepared by affinity chromatography.