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Safety Information

P1391

Sigma-Aldrich

Phosphatase, Alkaline from human placenta

≥1 unit/mg solid (in glycine buffer)

Synonym(s):

Orthophosphoric-monoester phosphohydrolase (alkaline optimum)

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352204

form

solid

specific activity

≥1 unit/mg solid (in glycine buffer)

UniProt accession no.

storage temp.

−20°C

Gene Information

human ... ALPP(250)

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General description

Placental alkaline phosphatase is found expressed in liver and intestines.

Application

Human placental alkaline phosphatase has been studied extensively due to its ectopic exptression in tumors. It has also been used in a study to investigate whether alkaline phosphatase of human tumor tissue corresponds to one or more phases of trophoblastic development.

Unit Definition

One unit will hydrolyze 1.0 μmole of 4-nitrophenyl phosphate per minute at pH 10.4 at 37 ° C.

Analysis Note

Protein determined by biuret.

Regulatory Information

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S Amr et al.
Journal of applied microbiology, 90(4), 550-554 (2001-04-20)
To investigate the relative antimicrobial activity of clindamycin phosphate (CP) and clindamycin (Cly) and to examine the effect of skin homogenates on the activity of CP. Minimum inhibitory concentrations (MIC) were determined against dermally relevant organisms and bactericidal activity was
E Garattini et al.
Proceedings of the National Academy of Sciences of the United States of America, 82(18), 6080-6084 (1985-09-01)
Three distinct forms of human alkaline phosphatase, presumably isozymes, are known, each apparently associated with a specific tissue. These are placental, intestinal, and liver (kidney and bone). We have used a specific immunoassay and HPLC to show that placental alkaline
L Fishman et al.
Cancer research, 36(7 PT 1), 2268-2273 (1976-07-01)
Alkaline phosphatase electrophoretic patterns characteristic of three phases in early human trophoblast development are described in this preliminary communication. Phase 1 (6 to 10 weeks) consists entirely of two heat-sensitive, L-homoarginine-inhibited bands, the slower one of which possesses antigenic determinants
D A Willoughby et al.
The Journal of biological chemistry, 275(2), 759-768 (2000-01-08)
We have identified a 323-base pair fragment of the 5'-flanking sequence of the K18 gene, which confers position-independent and copy number-dependent expression on two heterologous transgenes. This fragment is composed primarily of an Alu repetitive element. Its activity in mice
E E Kim et al.
Journal of molecular biology, 218(2), 449-464 (1991-03-20)
Alkaline phosphatase (AP) is a widely distributed non-specific phosphomonoesterase that functions through formation of a covalent phosphoseryl intermediate (E-P). The enzyme also catalyzes phosphoryl transfer reaction to various alcohols. Escherichia coli AP is a homodimer with 449 residues per monomer.

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