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Key Documents

P4069

Sigma-Aldrich

Phosphatase, Alkaline from Escherichia coli

buffered aqueous glycerol solution, 20-50 units/mg protein (in glycine buffer)

Synonyme(s) :

Orthophosphoric-monoester phosphohydrolase (alkaline optimum)

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About This Item

Numéro CAS:
Numéro de classification (Commission des enzymes):
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Source biologique

Escherichia coli

Niveau de qualité

Forme

buffered aqueous glycerol solution

Activité spécifique

20-50 units/mg protein (in glycine buffer)

Activité étrangère

DNase, RNase, none detected

Température de stockage

−20°C

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Application

Alkaline phosphatase is used for conjugation to antibodies and other proteins for ELISA, Western blotting, and histochemical detection. It may be used for protein labeling when high sensitivity is required. Product P4069 is provided as a buffered aqueous glycerol solution.
Phosphatase, Alkaline from Escherichia coli has been used:
  • in fluorometric assay to determine its enzyme activity
  • in the dephosphorylating enzyme cocktail for dephosphorylation of peptides
  • in treating the nerve and HL60 cell lysate for β-hydroxy β-methylglutaryl-Coenzyme A (HMG-CoA) reductase activity

Actions biochimiques/physiologiques

Alkaline phosphatase is a model enzyme for understanding phosphomonoesterase. It is used in various biochemical methods and enzyme linked immunosorbent assay (ELISA).
Alkaline phosphatase, from Escherichia coli, is a dimeric, non-glycosylated protein which mainly reside in the periplasmic space. Three known isoforms exist. The enzyme requires zinc, and is activated by magnesium. E. coli akaline phosphatase has a broad specificity for phosphate esters.

Attention

Alkaline phosphatase in 5 mM EDTA, pH 8, will be irreversibly heat inactivated at 75°C for 10 minutes.

Définition de l'unité

One unit will hydrolyze 1.0 μmole of p-nitrophenyl phosphate per min at pH 10.4 at 37 °C.

Forme physique

Solution in 5 mM Tris-HCl, pH 7.4, 0.5 mM MgCl2, 0.5 mM ZnCl2, 50% (w/v) glycerol

Remarque sur l'analyse

Protein determined by biuret.

Pictogrammes

Health hazard

Mention d'avertissement

Danger

Mentions de danger

Conseils de prudence

Classification des risques

Resp. Sens. 1

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Sensitive fluorogenic substrate for alkaline phosphatase
Levine MN and Raines RT
Analytical Biochemistry, 418(2), 247-252 (2011)
The prion protein and cellular cholesterol homeostasis
Diomede L, et al.
Neurobiology of Lipids, 1(2), 8-14 (2002)
Phospho-iTRAQ data article: Assessing isobaric labels for the large-scale study of phosphopeptide stoichiometry
Glibert P, et al.
Data in Brief, 4(2), 60-65 (2015)
Lionel M Igaz et al.
The American journal of pathology, 173(1), 182-194 (2008-06-07)
TAR DNA-binding protein (TDP-43) has been recently described as a major pathological protein in both frontotemporal dementia with ubiquitin-positive inclusions (FTLD-U) and amyotrophic lateral sclerosis. However, little is known about the relative abundance and distribution of different pathological TDP-43 species
Jong Kil Lee et al.
The Journal of experimental medicine, 211(8), 1551-1570 (2014-07-23)
In Alzheimer's disease (AD), abnormal sphingolipid metabolism has been reported, although the pathogenic consequences of these changes have not been fully characterized. We show that acid sphingomyelinase (ASM) is increased in fibroblasts, brain, and/or plasma from patients with AD and

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