P0762
Phosphatase, Alkaline−Agarose from calf intestine
ammonium sulfate suspension
Synonym(s):
Alkaline phosphatase-Agarose
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biological source
bovine (calf) intestine
Quality Level
form
ammonium sulfate suspension
specific activity
250-1000 units/mL packed gel
matrix
beaded agarose
storage temp.
2-8°C
General description
Alkaline phosphatase from calf intestine is a glycoprotein with a molecular weight of 140,000.
Application
Alkaline phosphatase from calf intestine, CIP, removes phosphate groups from the 5′ ends of DNA which aids in cloning techniques to keep DNA from self-ligation. It can be inhibited by homoarginine.
Calf intestinal alkaline phosphatase (CIAP) has been used in a study with the spectrophotometric method to assess the inhibition effect of dansyl-L-phenylalanine. It has also been shown that (CIAP) is able to detoxify the lipopolysaccharide (LPS)-mediated inflammatory response, which could be important in the treatment of LPS-mediated diseases.
Biochem/physiol Actions
Sigma insoluble enzymes are produced by reacting the conventional "soluble" enzyme with an inert base that results in an insoluble compound retaining the activity of the original enzyme. Applications are almost unlimited. By selecting the "inert" base carefully, a highly active "resin" or "gel" can be produced with which the enzyme reaction can be quickly catalyzed by momentary contact with the substrate in a suitable medium. This can be carried out either in a batch slurry or even through a small column. In either case, the insoluble enzyme does not remain as a contaminant of the reaction mix. It can be readily filtered or centrifuged out of the batch slurry, or remain behind in the column. Many unstable enzymes seem to be much more stable in the insoluble form.
Packaging
Package size based on DEA units
Unit Definition
One unit will hydrolyze 1.0 mmole of p-nitrophenyl phosphate per min at pH9.8 at 37 °C.
Physical form
Suspension in 2.0 M (NH4)2SO4, 1 mM MgCl2, 0.1 mM ZnCl2, pH 7
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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Calf intestinal alkaline phosphatase, a novel therapeutic drug for lipopolysaccharide (LPS)-mediated diseases, attenuates LPS toxicity in mice and piglets
Beumer, C.
Journal of Pharmacology and Experimental Therapeutics, 397, 737-744 (2003)
J E Coleman
Annual review of biophysics and biomolecular structure, 21, 441-483 (1992-01-01)
Alkaline phosphatase was the first zinc enzyme to be discovered in which three closely spaced metal ions (two Zn ions and one Mg ion) are present at the active center. Zn ions at all three sites also produce a maximally
Li-Na Li et al.
Guang pu xue yu guang pu fen xi = Guang pu, 29(10), 2820-2823 (2009-12-30)
To evaluate the inhibition effect of dansyl-L-phenylalanine on calf intestinal alkaline phosphatase (CIAP), UV-Vis spectrophotometric method was employed. It was found that dansyl-L-phenylalanine can selectively inhibit CIAP. The kinetic inhibition processes of dansyl-L-phenylalanine and L-phenylalanine were comparatively studied. The authors'
M Kellerer et al.
Diabetologia, 41(7), 833-838 (1998-08-01)
Protein kinase C (PKC) isoforms are potentially important as modulators of the insulin signalling chain and could be involved in the pathogenesis of cellular insulin resistance. We have previously shown that phorbol ester stimulated PKC beta1 and beta2 as well
Q P Dou et al.
Proceedings of the National Academy of Sciences of the United States of America, 89(8), 3256-3260 (1992-04-15)
Transcription of the murine thymidine kinase gene, which is coregulated with the G1/S phase transition, is activated by changing the binding of protein complexes Yi1 and Yi2 to three upstream DNA motifs. Yi1 is replaced by Yi2 shortly before S
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