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Key Documents

A6861

Sigma-Aldrich

Acetyl-CoA carboxylase 2 human

recombinant, expressed in Sf9 cells

Synonym(s):

ACACB, ACC2, acetyl-CoA carboxylase beta

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About This Item

Enzyme Commission number:
UNSPSC Code:
12352204
NACRES:
NA.26

recombinant

expressed in Sf9 cells

Quality Level

form

solution

specific activity

≥25 units/μg protein

NCBI accession no.

shipped in

dry ice

storage temp.

−70°C

Gene Information

human ... ACACB(32)

Application

Acetyl-CoA carboxylase is responsible for synthesis of Malonyl-CoA which is an inhibitor of fatty acid oxidation in skeletal muscle mitochondria. The enzyme may be used to study the effect on production of malonyl-CoA as well as fatty acid oxidation during exercise. The enzyme also may be used for ACC regulation study in anti-obesity and anti-type 2 diabetes therapeutics.

Biochem/physiol Actions

Acetyl-CoA Carboxylase (ACC) regulates the metabolism of fatty acids. This enzyme catalzes the formation of Malonyl CoA through the irreversible carboxylation of acetyl CoA. There are two main isoforms of Acetyl-CoA carboxylase expressed in mammals, Acetyl-CoA carboxylase 1 (ACACA) and Acetyl-CoA carboxylase 2 (ACACB). ACACA has broad tissue distribution but is enriched in tissues critical for fatty acid sythesis such as adipose tissue. ACACB is enriched in tissues such as skeletal muscle and heart that are critical for fatty acid oxidation.

The Acetyl-CoA Carboxylase enzymes are activated by citrate, glutamate, and dicarboxylic acids and negatively regulated by long and short chain fatty acyl CoAs. Because of thier roles in fatty acid metabolism and oxidation, ACACA and ACACB are therapeutic targets for treating obesity and metabolic syndrome disorders.

Physical properties

C-terminal HIS-tagged 277 kDa full length protein

Unit Definition

One unit will cause the carboxylation of 1 picomole of acetyl-CoA per minute at pH 7.4 at 30 deg C.

Physical form

Buffered aqueous solution containing Tris-HCl, pH 8.0, NaCl, glycerol, and DTT. May also contain one or more of the following: EDTA, KCl, imidazole, TWEEN-20.

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

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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W W Winder et al.
The American journal of physiology, 270(2 Pt 1), E299-E304 (1996-02-01)
Malonyl-CoA, an inhibitor of fatty acid oxidation in skeletal muscle mitochondria, decreases in rat skeletal muscle during exercise or in response to electrical stimulation. Regulation of rat skeletal muscle acetyl-CoA carboxylase (ACC), the enzyme that synthesizes malonyl-CoA, was studied in
Philip D Bates et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(3), 1204-1209 (2014-01-09)
Degradation of unusual fatty acids through β-oxidation within transgenic plants has long been hypothesized as a major factor limiting the production of industrially useful unusual fatty acids in seed oils. Arabidopsis seeds expressing the castor fatty acid hydroxylase accumulate hydroxylated
Sihao Liu et al.
Nature, 502(7472), 550-554 (2013-10-25)
Food intake increases the activity of hepatic de novo lipogenesis, which mediates the conversion of glucose to fats for storage or use. In mice, this program follows a circadian rhythm that peaks with nocturnal feeding and is repressed by Rev-erbα/β
Lutfi Abu-Elheiga et al.
Proceedings of the National Academy of Sciences of the United States of America, 100(18), 10207-10212 (2003-08-16)
Malonyl-CoA, generated by acetyl-CoA carboxylases ACC1 and ACC2, is a key metabolite in the control of fatty acid synthesis and oxidation in response to dietary changes. ACC2 is associated to the mitochondria, and Acc2-/- mice have a normal lifespan and
Jorgen F P Wojtaszewski et al.
American journal of physiology. Endocrinology and metabolism, 284(4), E813-E822 (2002-12-19)
The metabolic role of 5'AMP-activated protein kinase (AMPK) in regulation of skeletal muscle metabolism in humans is unresolved. We measured isoform-specific AMPK activity and beta-acetyl-CoA carboxylase (ACCbeta) Ser(221) phosphorylation and substrate balance in skeletal muscle of eight athletes at rest

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