SIRT1 (193-747 aa) (GST-tagged), Human recombinant | 7264

The sirtuins represent a distinct class of trichostatin A-insensitive lysyl-deacetylases (class III HDACs) and have been shown to catalyze a reaction that couples lysine deacetylation to the formation of nicotinamide and O-acetyl-ADP-ribose from NAD+ and the abstracted acetyl group. There are seven human sirtuins, which have been designated SIRT1-7. SIRT1, which is located in the nucleus, is the human sirtuin with the greatest homology to yeast Sir2 (Silent information regulator 2) and has been shown to regulate the activity of the p53 tumor suppressor and inhibit apoptosis. These results have significant implications regarding an important role of SIRT1 in modulating the sensitivity of cells in the p53-dependent apoptotic response and the possible effect in cancer therapy. Since the growth suppressive function of p53 is strongly enhanced by DNA damaging reagents, it is expected that inhibitors of SIRT1 may be effective anti-cancer drugs.

7264 | SIRT1 193-747 aa GST-tagged Human recombinant DataSheet

Biomolecule/Target: SIRT1

Synonyms: NAD-dependent Deacetylase 1, SIR2L1, SIR2-like Protein 1, Sirtuin 1, Silent Information Regulator 2

Alternates names: IL-28A

Taglines: Regulates the activity of the p53 tumor suppressor and inhibits apoptosis

NCBI Gene ID #: 282616

NCBI Gene Symbol: IFNL2

Gene Source: Human

Accession #: Q8IZJ0

Recombinant: Yes

Source: E Coli

Purity by SDS-PAGEs: 98%

Assay: SDS-PAGE

Purity: N/A

Assay #2: HPLC

Endotoxin Level: < 0.1 ng/g of protein (<1EU/g).

Activity (Specifications/test method): Determined by its ability to activate STAT phosphorylation in an ISRE Luciferase Reporter Assay using human colon carcinoma COLO205 cells. The expected ED50 is 0.3-0.5 ng/ml

Biological activity: Determined by its ability to activate STAT phosphorylation in an ISRE Luciferase Reporter Assay using human colon carcinoma COLO205 cells. The expected ED50 is 0.3-0.5 ng/ml

Results: N/A

Binding Capacity: N/A

Unit Definition: N/A

Molecular Weight: 19.6 kDa

Concentration: N/A

Appearance: Liquid

Physical form description: Sterile filtered through a 0.2 micron filter. Lyophilized from 10 mM Acetic Acid.

Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.5-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Amino acid sequence: PVARLHGALP DARGCHIAQF KSLSPQELQA FKRAKDALEE SLLLKDCRCH SRLFPRTWDL RQLQVRERPM ALEAELALTL KVLEATADTD PALVDVLDQP LHTLHHILSQ FRACIQPQPT AGPRTRGRLH HWLYRLQEAP KKESPGCLEA SVTFNLFRLL TRDLNCVASG DLCV