FDFT1 (farnesyl-diphosphate farnesyltransferase 1) is also known as squalene synthase (SS), and is an essential enzyme of the cholesterol biogenesis pathway. This protein has a putative molecular weight of 48,041 and is composed of 417 amino acids. Two variants of FDFT1 mRNA are found in humans, which differ at their 3' untranslated regions. They are of 2kb and 1.55kb and are equally expressed in heart, lung, liver, kidney, pancreas and placenta. However, the 2kb transcript is abundant in heart and skeletal muscle.
Synonyms: Anti-FPP:FPP farnesyltransferase antibody produced in rabbit; Anti-Farnesyl-diphosphate farnesyltransferase antibody produced in rabbit; Anti-SQS antibody produced in rabbit; Anti-SS antibody produced in rabbit; Anti-Squalene synthetase antibody produced in rabbit
Storage: -20C
Application: Anti-FDFT1 antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org). Each antibody is tested by immunohistochemistry against hundreds of normal and disease tissues. These images can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. The antibodies are also tested using immunofluorescence and western blotting. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.
Biochem Physiol Actions: FDFT1 (farnesyl-diphosphate farnesyltransferase 1) enzyme catalyzes the first committed reaction in steroid/hopanoid pathways. It catalyzes the conversion of two farnesyl diphosphates (FPPs) into squalene. It is also thought to be involved in carotenoid biosynthesis, where it might be responsible for the production of carotenoid dehydrosqualene. It determines the fate towards sterol synthesis. In prostate cancer cells, its expression is elevated by androgens, which are mevalonate/isoprenoid pathway intermediates which facilitate cholesterol synthesis. Thus, this enzyme might be implicated in cholesterol synthesis in cancer cells, and might be a therapeutic target for antineoplastic strategies. In chronic hepatitis C (CHC) patients, this protein is linked with advanced fibrosis in non-steatotic subgroup. Overexpression of FDFT1 results in elevated activation of tumor necrosis factor (TNF)-a receptor 1 and nuclear factor (NF)-?B pathways and increased expression of MMP (matrix metallopeptidase) 1, which in turn facilitates the metastasis of lung cancer.
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