LIPE (Hormone-sensitive Lipase, HSL)

Although initially described as an adipocyte-specific triacylglycerol lipase, lipe (also known as hormone-specific lipase or HSL) is expressed in multiple tissues and cell lines. It plays multiple roles in lipid metabolism, including hormone-stimulated lipolysis in adipose tissue and the hydrolysis of cholesterol esters. Lipe is expressed as a long and a short form, generated by use of alternative translational start codons. The long form is expressed in steroidogenic tissues such as testis, where it converts cholesterol 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. Recently, it was observed that the lack of lipe in genetically obese leptin-null mice inhibited obesity and adipogenesis, suggesting that lipe plays a major role in adipocyte proliferation.\n\nApplications:\nSuitable for use in ELISA, Western Blot, Immunofluorescence and Immunohistochemistry. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 0.5-1ug/ml\nImmunofluorescence: 20ug/ml\nImmunohistochemistry (Formalin fixed paraffin embedded): 2.5ug/ml\nOptimal dilutions to be determined by the researcher.\n\nPositive Control:\nHuman Lymph Node Tissue Lysate\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

146132

Size

100ug

Applications

ELISA, IF, IHC, WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

Supplied as a liquid in PBS, 0.02% sodium azide.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1. Yeaman SJ. Hormone-sensitive lipase new roles for an old enzyme. Biochem. J. 2004; 379:11-22. 2. Holst LS, Langin D, Mulder H, et al. Molecular cloning, genomic organization, and expression of a testicular isoform of hormone-sensitive lipase. Genomics 1996; 35:441-7. 3. Kraemer FB, Shen WJ, Harada K, et al. Hormone-sensitive lipase is required for high-density lipoprotein cholesterol ester-supported adrenal steroidogenesis. Mol. Endocrinol. 2004; 18:549-57. 4. Sekiya M, Osuga J, Okazaki H, et al. Absence of hormone-sensitive lipase inhibits obesity and adipogenesis in Lep ob/ob mice. J. Biol. Chem. 2004; 279:15084-90.

Additional Info

Recognizes human lipe. Species Crossreactivity: mouse and rat.