The Silent Information Regulator (SIR2) family of genes is a highly conserved group of genes that encode nicotinamide adenine dinucleotide (NAD)-dependent protein deacetylases, also known as class III histone deacetylases.
The first discovered and best characterized of these genes is Saccharomyces cerevisiae SIR2, which is involved in silencing of mating type loci, telomere maintenance, DNA damage response, and cell aging (1).
SirT1, the mammalian ortholog of Sir2, is a nuclear protein implicated in the regulation of many cellular processes, including apoptosis, cellular senescence, endocrine signaling, glucose homeostasis, aging, and longevity.
Targets of SirT1 include acetylated p53 (2,3), p300 (4), Ku70 (5), forkhead (FoxO) transcription factors (5,6), PPARgamma (7), and the PPARgamma coactivator-1a (PGC-1a) protein (8).
Deacetylation of p53 and FoxO transcription factors represses apoptosis and increases cell survival (2,3,5,6).
Deacetylation of PPARgamma and PGC-1a regulates the gluconeogenic/glycolytic pathways in the liver and fat mobilization in white adipocytes in response to fasting (7,8).
SirT1 deacetylase activity is inhibited by nicotinamide and activated by resveratrol.
In addition, SirT1 activity may be regulated by phosphorylation, since it is phosphorylated on Ser27 and Ser47 in vivo, however, the function of these phosphorylation sites has not yet been determined (9).
Applications:Suitable for use in Western Blot, Immunoprecipitation.
Other applications not tested.
Recommended Dilution:Western Blot: 1:500-1:1000Immunoprecipitation: 1:20-1:50Optimal dilutions to be determined by the researcher.
Storage and Stability:May 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.
仕様
Size：100ul
Host：rabbit
Source Antibody：human
Grade：Affinity Purified
Purity：Purified by affinity chromatography.
Form：Supplied as a liquid in PBS, pH 7.3, 0.02% sodium azide, 50% glycerol.
Specificity：Recognizes SirT1. Species Crossreactivity: human, mouse, rat
Isotype：IgG
Calc Applications Abbrev：IP WB
Calc Crossreactivity：Hu Mo Rt
Immunogen：Recombinant protein corresponding to human SirT1 .
