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P4653

Sigma-Aldrich

Phosphatase, Alkaline from bovine kidney

lyophilized powder, ≥5 units/mg protein (Activity determined in diethanolamine buffer, pH 9.8)

Synonym(s):

Alkaline phosphatase, Orthophosphoric-monoester phosphohydrolase (alkaline optimum)

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About This Item

CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
eCl@ss:
42010105

form

lyophilized powder

specific activity

≥5 units/mg protein (Activity determined in diethanolamine buffer, pH 9.8)

composition

Protein, ~35% biuret

storage temp.

−20°C

Application

Alkaline phosphatase is used for conjugation to antibodies and other proteins for ELISA, Western blotting, and histochemical detection. It is routinely used to dephosphorylate proteins, such as casein, and nucleic acids. It may be used for protein labeling when high sensitivity is required. Alkaline phosphatase may be also be used to dephosphorylate the 5′-termini of DNA or RNA to prevent self-ligation. DNA or RNA can also be tagged with radiolabeled phosphate (via T4 polynucleotide kinase) after dephosphorylation with alkaline phosphatase.. Product P4653 is from bovine kidney and is provided as a lyophilized powder containing Tris-citrate buffer salts.

Biochem/physiol Actions

Alkaline phosphatase dephosphorylates proteins and nucleic acids.

Unit Definition

One unit will hydrolyze 1 μmole of 4-nitrophenyl phosphate per minute at pH 9.8 at 37 °C. Previously sold in "glycine" units.

Physical form

Lyophilized powder containing Tris-citrate buffer salts

Analysis Note

Assays in Tris buffer, pH 10.2 give activity approx. 2X that in the glycine buffer system. Assays in diethanolamine buffer, pH 9.8 give activity approx. 5X that of the glycine buffer system.
Protein determined by biuret

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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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M Nemir et al.
The Journal of biological chemistry, 264(30), 18202-18208 (1989-10-25)
We have reported previously that the 69-kDa major phosphoprotein, secreted by normal rat kidney (NRK) cells, is osteopontin, a glycosylated bone matrix protein. Here we show that this 69-kDa osteopontin is secreted by NRK cells in both phosphorylated (pp69) and
Lars Hansen et al.
American journal of human genetics, 92(4), 575-583 (2013-04-09)
PGAP2 encodes a protein involved in remodeling the glycosylphosphatidylinositol (GPI) anchor in the Golgi apparatus. After synthesis in the endoplasmic reticulum (ER), GPI anchors are transferred to the proteins and are remodeled while transported through the Golgi to the cell
Insulin affects dopamine metabolism in Drosophila females under normal and stress conditions.
N V Adonyeva et al.
Doklady. Biochemistry and biophysics, 448, 40-42 (2013-03-13)
Yuan-Kun Zhai et al.
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 38(1), 105-111 (2013-04-20)
To investigate the effects of naringin on the proliferation, differention and maturaion of rat calvarial osteoblasts (ROB). Segregated neonatal SD rat skull, enzyme digestion to obtain ROB. The culture medium was replaced every three days. Serial subcultivation proceeded when cells
J A Otegbayo et al.
African journal of medicine and medical sciences, 41(4), 417-422 (2013-05-16)
HAART associated hepatoxicity is an important cause of poor adherence to therapy in HIV infected persons. An initial manifestation is elevation in the level ofAlanine Transaminase (ALT) in blood. We sought to evaluate the protective effects of Livolin, a phosphatidylcholine

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