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E6126

Sigma-Aldrich

Enolase from baker′s yeast (S. cerevisiae)

lyophilized powder, ≥50 units/mg protein

Synonym(s):

2-Phospho-D-glycerate hydro-lyase, Phosphopyruvate hydratase

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About This Item

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

form

lyophilized powder

specific activity

≥50 units/mg protein

mol wt

93 kDa

composition

Protein, 50-80% modified Warburg-Christian

solubility

15 mM Tris HCl, pH 7.4: soluble 1.0 mg/mL, clear

storage temp.

−20°C

General description

Enolase (2-phosphoglycerate hydratase) is a cytosolic enzyme. This cytosolic metalloenzyme is encoded by three homologous genes in mammals. Enolase the from baker′s yeast is a homodimer containing two bound Mg2+ ions. The peptide consists of 436 amino acids and contains a single cysteine residue and corresponds to a molecular weight of 93 kDa. Two of the active site components include His191 and Arg414. Enolase is seen in archaea, bacteria and eukaryotes.

Application

Enolase from baker′s yeast (S. cerevisiae) has been used as a supplement in assay buffer for phosphoglycerate mutase (PGM) enzyme assays.
Enolase from baker′s yeast has been used in a study to investigate the contribution of the antibodies response induced by a low virulent Candida albicans strain in protection against systemic candidiasis. Enolase from baker′s yeast has also been used in a study to investigate the role of metal ions in catalysis by enolase.
The enzyme from Sigma has been used as an antigen during ELISA. the study used human granulocyte proteins to identify and characterize autoantibodies against catalase and α-enolase in patients with primary sclerosing cholangitis. It has been used to study temperature- and denaturant-induced yeast enolase denaturation using fourier transform infrared spectroscopy. It has also been used along with other proteins to study gradient chromatofocusing-mass spectrometry; a new technique for protein analysis.

Biochem/physiol Actions

Enolase plays a key role in glycolysis and gluconeogenesis. Enolase, found in the nucleus of mammalian cells plays a key role in transcriptional modulation of genes, which participates in morphological transformation and cell proliferation.
The phosphorylated tyrosine residue present in yeast enolase forms a substrate for phosphorylation by tyrosine protein kinase. Apart from Mg2+, the enzyme can be activated by Zn2+, Mn2+, and Cd2+.
Enolase is a metalloenzyme that catalyzes the interconversion of 2-phosphoglycerate to phosphoenolpyruvate. Enolase is essential for both glycolysis and gluconeogenesis.

Unit Definition

One unit will convert 1.0 μmole of 2-phosphoglycerate to phospho(enol)pyruvate per min at pH 7.4 at 25 °C.

Physical form

Lyophilized powder containing Tris buffer salts

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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T Orth et al.
Clinical and experimental immunology, 112(3), 507-515 (1998-07-02)
Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease of unknown aetiology. Recent studies have shown that genetic factors and both cellular and humoral immunological abnormalities are important in the pathogenesis of PSC. The most prominent autoantibodies in PSC
J A Cooper et al.
The Journal of biological chemistry, 259(12), 7835-7841 (1984-06-25)
Enolase, lactate dehydrogenase, and phosphoglycerate mutase have previously been found to contain phosphotyrosine in fibroblasts transformed by Rous sarcoma virus, which encodes a tyrosine-specific protein kinase. However, these phosphorylations are not stoichiometric, and their significance for any aspect of the
Immunity to Haemonchus contortus and vaccine development
Advances in Parasitology, 93, 353-396 (2016)
Lian Shan et al.
Journal of the American Society for Mass Spectrometry, 19(8), 1132-1137 (2008-06-10)
A new analytical technique, gradient chromatofocusing-mass spectrometry (gCF-MS), was developed employing ion-exchange high-performance liquid chromatography (HPLC) interfaced to an electrospray-quadrupole mass spectrometer in the determination of proteins. There have been few reports, if any, of a HPLC-MS technique for proteins
Thermal, chemical and chemothermal denaturation of yeast enolase.
Huang, Ping, and Aichun Dong.
Spectroscopy: An International Journal, 17(2), 453-467 (2003)

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