SRP0117 Sigma

Sirtuin 3 human

recombinant, expressed in E. coli, ≥70% (SDS-PAGE)

Synonym: Mitochondrial nicotinamide adenine dinucleotide-dependent deacetylase, SIR2L3, SIRT3, Silent mating type information regulation 2, sir2-like 3



Related Categories Deacetylases, Epigenetics, Histone Modifying Enzymes, Molecular Biology, Proteins and Peptides for Epigenetic Research More...
recombinant   expressed in E. coli
assay   ≥70% (SDS-PAGE)
form   aqueous solution
mol wt   mol wt 59 kDa
NCBI accession no.   NM_012239
shipped in   dry ice
storage temp.   −70°C
Gene Information   human ... SIRT3(23410)



Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.

Preparation Note

Thaw on ice. Upon first thaw, briefly spin tube containing enzyme to recover full content of the tube. Aliquot enzyme into single use aliquots. Store remaining undiluted enzyme in aliquots at -70°C. Note: Enzyme is very sensitive to freeze/thaw cycles.

Unit Definition

One unit is defined as the amount of enzyme required to deacetylate 1 pmol of substrate/min at 37°C.

Physical form

Formulated in 25 mM Tris-HCl, pH 8.0, 100 mM NaCl, 0.05% Tween-20 and 20% glycerol.

Biochem/physiol Actions

Sirtuin 3 (SIRT3) is thought to be involved in metabolism as its expression is suppressed in muscles of diabetic animals and increased in white and brown adipose tissues during calorie restriction (CR). This protein modulates the degree of acetylation and activity of acetyl-coenzyme A synthetase 2, an enzyme thought to be involved in energy production during starvation conditions in mammals. Up-regulation of this gene influences the expression of genes involved in mitochondrial function. During fasting, SIRT3 controls mitochondrial intermediary metabolism and fatty-acid use by deacetylating long-chain acyl coenzyme A dehydrogenase (LCAD). It is an essential modulator of basal ATP, and therefore, overall energy homeostasis.

General description

Sirtuin 3 (SIRT3) is a member of a family of NAD+-dependent protein deacetylases called sirtuins (SIRTs). In mammals, there are seven types of SIRTs (SIRT1 to 7). SIRT 3 is present in mitochondrial matrix.

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Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers


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