Merck
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P4978

Sigma-Aldrich

Phosphatase, Alkaline from calf intestine

buffered aqueous glycerol solution

Synonym(s):
CIAP, CIP, Orthophosphoric-monoester phosphohydrolase (alkaline optimum)
CAS Number:
Enzyme Commission number:
MDL number:
eCl@ss:
42010105
NACRES:
NA.53

grade

for molecular biology

Quality Level

form

buffered aqueous glycerol solution

mol wt

~80 kDa

concentration

≥10,000 units/mL

UniProt accession no.

foreign activity

DNase, RNase, none detected

shipped in

wet ice

storage temp.

−20°C

Gene Information

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General description

Alkaline phosphatase is a phosphomonoesterase that catalyzes the cleavage of terminal phosphates from nucleic acids. The free 5′-OH can be phosphorylated with polynucleotide kinase and γ32P-ATP to produce γ32P-end-labeled nucleic acids. Linearized cloning vectors can be prevented from recircularizing by dephosphorylation with alkaline phosphatase.

Application

Commonly used to remove the 5′-terminal phosphate from nucleic acids during molecular cloning reactions.

Components

Alkaline phosphatase is provided in a solution of 10 mM Tris-HCl (pH 8.2), 50 mM KCl, 1 mM MgCl2, and 0.1 mM ZnCl2, in 50% (w/v) glycerol. 10X CIP Buffer, Product Number C3225, is included.

Unit Definition

One unit will hydrolyze 1 μmole of p-nitrophenyl phosphate per min at 37 °C.

Other Notes

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

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

Certificate of Analysis

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Certificate of Origin

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