Skip to Content
Merck
All Photos(1)

Key Documents

SRP0117

Sigma-Aldrich

Sirtuin 3 human

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

Synonym(s):

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

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
12352200
NACRES:
NA.32

biological source

human

recombinant

expressed in E. coli

Assay

≥70% (SDS-PAGE)

form

aqueous solution

mol wt

59 kDa

packaging

pkg of 100 μg

storage condition

avoid repeated freeze/thaw cycles

concentration

>0.02 mg/mL

NCBI accession no.

UniProt accession no.

shipped in

dry ice

storage temp.

−70°C

Gene Information

human ... SIRT3(23410)

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.

Application

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

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.

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.

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.

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

SIRT3 regulates mitochondrial fatty-acid oxidation by reversible enzyme deacetylation.
Hirschey MD, et al.
Nature, 464(7285), 121-125 (2010)
A role for the mitochondrial deacetylase Sirt3 in regulating energy homeostasis.
Ahn BH
Proceedings of the National Academy of Sciences of the USA, 105(38), 14447-14452 (2008)
Virtual Screening Combined with Enzymatic Assays to Guide the Discovery of Novel SIRT2 Inhibitors.
Scarano, et al.
International Journal of Molecular Sciences, 24 (2023)
David B Lombard et al.
Molecular and cellular biology, 27(24), 8807-8814 (2007-10-10)
Homologs of the Saccharomyces cerevisiae Sir2 protein, sirtuins, promote longevity in many organisms. Studies of the sirtuin SIRT3 have so far been limited to cell culture systems. Here, we investigate the localization and function of SIRT3 in vivo. We show
L Pacella-Ince et al.
Human reproduction (Oxford, England), 29(7), 1490-1499 (2014-04-29)
Is the activity of sirtuin 3 (SIRT3) altered in granulosa and cumulus cells from young women with reduced ovarian reserve or women of advanced maternal age? SIRT3 mRNA and active protein in granulosa and cumulus cells were decreased in women

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service