Cell Signaling Technology

Product Pathways - Glucose Metabolism

Fatty Acid Synthase Antibody #3189

Applications Reactivity Sensitivity MW (kDa) Source
W H M Endogenous 273 Rabbit

Applications Key:  W=Western Blotting
Reactivity Key:  H=Human  M=Mouse
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

Fatty Acid Synthase Antibody detects endogenous levels of total fatty acid synthase protein.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide around Ala1160 corresponding to a sequence of mouse fatty acid synthase. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines, using Fatty Acid Synthase Antibody.

Background

Fatty acid synthase (FASN) catalyzes the synthesis of long-chain fatty acids from acetyl-CoA and malonyl-CoA. FASN is active as a homodimer with seven different catalytic activities and produces lipids in the liver for export to metabolically active tissues or storage in adipose tissue. In most other human tissues, FASN is minimally expressed since they rely on circulating fatty acids for new structural lipid synthesis (1).Recently, increased expression of FASN has emerged as a phenotype common to most human carcinomas. In breast cancer, immunohistochemical staining showed that the levels of FASN are directly related to the size of breast tumors (2). Studies also showed that FASN is highly expressed in lung and prostate cancers and that FASN expression is an indicator of poor prognosis in breast and prostate cancer (3-5). Furthermore, inhibition of FASN is selectively cytotoxic to human cancer cells (5). Thus, increased interest has focused on FASN as a potential target for the diagnosis and treatment of cancer as well as metabolic syndrome (6,7).

  1. Katsurada, A. et al. (1990) Eur J Biochem 190, 427-33.
  2. Wells, W.A. et al. (2006) Breast Cancer Res Treat 98, 231-40.
  3. Kawamura, T. et al. (2005) Pathobiology 72, 233-240.
  4. Shah, U.S. et al. (2006) Hum Pathol 37, 401-409.
  5. Kuhajda, F.P. (2000) Nutrition 16, 202-8.
  6. Tian, W.X. (2006) Curr Med Chem 13, 967-977.
  7. Kusunoki, J. et al. (2006) Endocrine 29, 91-100.

Application References

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Companion Products

This product is intended for research purposes only. The product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

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