• Species Reactivity

  Human

• Specificity

  Detects human Sirtuin 3/SIRT3 in ELISAs. In direct ELISAs, no cross-reactivity with recombinant human Sirtuin 2 is observed.

• Source

  Monoclonal Mouse IgG    ₁ Clone # 850911

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  E. coli-derived recombinant human Sirtuin 3/SIRT3    
  Ser101-Lys399    
  Accession # Q9NTG7

• Formulation

  Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 μm filtered solution in PBS.

• Label

  Unconjugated

Applications

• 
  

  Recommended    
  Concentration

  Sample

• Western Blot

  2 μg/mL

  See below

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Reconstitution

  Sterile PBS to a final concentration of 0.5 mg/mL.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• Stability & Storage

  Use a manual defrost freezer and avoid repeated freeze-thaw cycles.    

• 12 months from date of receipt, -20 to -70 °C as supplied.

• 1 month, 2 to 8 °C under sterile conditions after reconstitution.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Sirtuin 3/SIRT3

Sirtuin 3 (SIRT3; SIR2-like protein 3) is a 28-30 kDa, NAD  ⁺-dependent class III member of the sirtuin protein family. It is widely expressed and found apparently in both the nucleus where it deacetylates histones, and in the mitochondrial matrix where it is involved in the regulation of both oxidative stress and the physiology associated with fasting or caloric restriction. Relative to the mitochondria, SIRT3 deacetylates multiple enzyme substrates including SOD2, IDH2, LCAD, OTC and HMGCS2, an action that results in enzyme activation. Human SIRT3 is 399 amino acids (aa) in length. It contains a mitochondrial targeting sequence within the first 100 aa, followed by a sirtuin-type deacetylase domain (aa 126-382) that contains an NAD binding segment (aa 145-165). SIRT3 is initially synthesized as a 42-44 kDa "precursor" in the cytosol. From here, it can translocate into mitochondria where it is cleaved between Arg99Arg100 to generate a 28-30 kDa short form. There is one potential alternative start site at Met143. Over aa 101-399, human and mouse SIRT3 share 84% aa sequence identity.

• Long Name:

  Silent Mating Type Information Regulation 3 Homolog

• Entrez Gene IDs:

  23410 (Human); 64384 (Mouse); 293615 (Rat)

• Alternate Names:

  EC 3.5.1; EC 3.5.1.-; hSIRT3; mitochondrial nicotinamide adenine dinucleotide-dependent deacetylase; NAD-dependent deacetylase sirtuin-3, mitochondrial; SIR2L3; SIR2L3silent mating type information regulation 2, S.cerevisiae, homolog 3; sir2-like 3; SIR2-like protein 3; SIRT3; sirtuin (silent mating type information regulation 2 homolog) 3 (S. cerevisiae); sirtuin (silent mating type information regulation 2, S.cerevisiae, homolog) 3; Sirtuin 3; sirtuin type 3