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A5384

Sigma-Aldrich

Aconitase from porcine heart

Synonym(s):

Aconitate hydratase, Citrate (isocitrate) hydrolyase

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

Porcine heart

form

solid

mol wt

~66 kDa by gel filtration

storage temp.

−20°C

Application

Aconitase may be usefull in diabetes research as well as to study structural conservation between iron-responsive element binding proteins (IRE-BP) and isomerases .

Biochem/physiol Actions

Aconitase catalyses the stereo-specific isomerization of citrate to isocitrate via cis-aconitate in the tricarboxylic acid cycle. Aconitase is inhibited by cyanide, sulfide and copper and mercury at low concentrations. It is competitively inhibited by trans-aconitate. Aconitase contains an internal Fe-S cluster which is responsible for its activity.

Unit Definition

One unit will convert 1.0 μmole of citrate (via cis-aconitate) to isocitrate per min at pH 7.4 at 25 °C.

Analysis Note

Crude preparation containing aconitase activity

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

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Ewelina Michta et al.
Environmental microbiology, 14(12), 3203-3219 (2012-11-03)
In many organisms, aconitases have dual functions; they serve as enzymes in the tricarboxylic acid cycle and as regulators of iron metabolism. In this study we defined the role of the aconitase AcnA in Streptomyces viridochromogenes Tü494, the producer of
Megan J Morgan et al.
Plant physiology, 161(1), 397-407 (2012-11-21)
Organic acid content is regarded as one of the most important quality traits of fresh tomato (Solanum lycopersicum). However, the complexity of carboxylic acid metabolism and storage means that it is difficult to predict the best way to engineer altered
Lucy M Hinder et al.
The Journal of endocrinology, 216(1), 1-11 (2012-10-23)
Diabetic neuropathy (DN) is the most common complication of diabetes and is characterized by distal-to-proximal loss of peripheral nerve axons. The idea of tissue-specific pathological alterations in energy metabolism in diabetic complications-prone tissues is emerging. Altered nerve metabolism in type
Kurtis J Haro et al.
PloS one, 7(11), e48841-e48841 (2012-11-17)
Iron is required for nearly all organisms, playing important roles in oxygen transport and many enzymatic reactions. Excess iron, however, can be cytotoxic. Emerging evidence suggests that radioresistance can be achieved in lower organisms by the protection of proteins, but
Megan Whitnall et al.
Proceedings of the National Academy of Sciences of the United States of America, 109(50), 20590-20595 (2012-11-22)
There is no effective treatment for the cardiomyopathy of the most common autosomal recessive ataxia, Friedreich ataxia (FA). This disease is due to decreased expression of the mitochondrial protein, frataxin, which leads to alterations in mitochondrial iron (Fe) metabolism. The

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