SRP0117
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
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About This Item
UNSPSC Code:
12352200
NACRES:
NA.32
Recommended Products
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)
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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)
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
Yang Cui et al.
PloS one, 10(6), e0129834-e0129834 (2015-06-30)
SIRT3 is a key NAD+-dependent protein deacetylase in the mitochondria of mammalian cells, functioning to prevent cell aging and transformation via regulation of mitochondrial metabolic homeostasis. However, SIRT3 is also found to express in some human tumors; its role in
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