FASN (fatty acid synthase) is a large, multidomain, lipogenic protein. It is composed of seven catalytic domains, which include ß-ketoacyl synthase (KS), malonyl acetyl transferase, dehydratase (DH), enoyl-acyl carrier protein-reductase (ER), ß-ketoacyl reductase (KR), acyl carrier protein (ACP), and thioesterase domains. This protein exists in a functionally homodimeric form. Under normal conditions, it is expressed at low levels.
Synonyms: Anti-Fatty acid synthase
Storage: -20C
Application: All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org)and as a result, are supported by the most extensive characterization in the industry. The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.
Biochem Physiol Actions: FASN (fatty acid synthase) is responsible for the biogenesis of long chain saturated fatty acids, which make up lipid signaling molecules, membranes and anchors for membrane proteins. This protein is linked to multiple disorders such as, hepatic steatosis, cancer, inflammation, obesity and diabetes. It is highly up-regulated in multiple cancers such as, breast, lung, prostate, colon, pancreatic and bladder. In breast cancer, this protein controls liver fatty acid-binding protein (L-FABP), vascular endothelial growth factor (VEGF) and VEGF Receptor-2 (VEGFR2), thus, promoting epithelial-mesenchymal transition of breast cancer cells. Trastuzumab-resistance in breast cancer is mediated by the up-regulation of FASN by Pin-1 (peptidylprolyl cis/trans isomerase, NIMA-interacting 1) protein. It is up-regulated in malignant gliomas, and might have potential as a therapeutic target for the drug Orlistat.
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