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You are here:Home » Antibodies » Abs to Enzymes, Lipase » Anti -Hormone Sensitive Lipase (HSL)

Anti -Hormone Sensitive Lipase (HSL)

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Specifications

Clone Host Grade Applications
Polyclonal Chicken Purified E B
Lipase, hormone-sensitive also known as LIPE is an enzyme that, in humans, is encoded by the LIPE gene. LIPE is an intracellular neutral lipase that is capable of hydrolyzing a variety of esters.[2] The enzyme has a long and a short form. The long form is expressed in steroidogenic tissues such as testis, where it converts cholesteryl esters to free cholesterol for steroid hormone production. The short form is expressed in adipose tissue, among others, where it hydrolyzes stored triglycerides to free fatty acids.
Catalog #H7021-80
LIPE functions to hydrolyze the first fatty acid from a triacylglycerol molecule, freeing a fatty acid and diglyceride. It is also known as triglyceride lipase, while the enzyme that cleaves the second fatty acid in the triglyceride is known as diglyceride lipase, and the third enzyme that cleaves the final fatty acid is called monoglyceride lipase. Only the initial enzyme is affected by hormones, hence its hormone-sensitive lipase name. The diglyceride and monoglyceride enzymes are tens to hundreds of times faster, hence HSL is the rate-limiting step in cleaving fatty acids from the triglyceride molecule.
LIPE is activated when the body needs to mobilize energy stores, and so responds positively to catecholamines, ACTH, and negatively to insulin. Previously, glucagon was thought to activate LIPE, however the removal of insulin's inhibitory effects ("cutting the brakes") is the source of activation. The lipolytic effect of glucagon in adipose tissue is minimal in humans. LIPE may be activated by two mechanisms. In the first, phosphorylated perilipin A causes it to move to the surface of the lipid droplet, where it may begin hydrolyzing the lipid droplet. Also, it may be activated by a cAMP-dependent protein kinase (PKA). This pathway is significantly less effective than the first, which is necessary to lipid mobilization in response to cyclic AMP, which itself is provided by beta adrenergic stimulation of the glucagon receptor.
ApplicationsSuitable for use in Western Blot. Other applications have not been tested.
Recommended DilutionOptimal dilutions to be determined by the researcher.
Recommended Secondary AntibodiesI1906 IgY, Chicken Pab Rb x Ch
I1906-10 IgY, Chicken (HRP) Rb x Ch
I1906-12 IgY, Chicken (FITC) Rb x Ch
I1906-14 IgY, Chicken (AP) Rb x Ch
Storage and StabilityMay be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Clone TypePolyclonal
IsotypeIgY
HostChicken
SourceHuman
Concentration~1mg/ml
FormSupplied as a liquid in PBS, pH 7.4, 0.02% sodium azide.
PurityPurified immunoglobulin
ImmunogenHormone Sensitive Lipase mixed peptides
SpecificityRecognizes Hormone Sensitive Lipase at ~83kD and an additional band at ~40kD (unknown). Species Crossreactivity: human, rat and mouse.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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