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P1435

Sigma-Aldrich

Phosphatase, Acid from sweet potato

ammonium sulfate suspension, ≥10.0 units/mg protein (modified Warburg-Christian)

Synonym(s):

(Orthophosphoric-monoester phosphohydrolase [acid optimum] )

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About This Item

CAS Number:
9001-77-8
Enzyme Commission number:
3.1.3.2 (BRENDA, IUBMB)
EC Number:
232-630-9
MDL number:
MFCD00131847
UNSPSC Code:
12352204
NACRES:
NA.54

form

ammonium sulfate suspension

specific activity

≥10.0 units/mg protein (modified Warburg-Christian)

secondary activity

≤9.9 units/mg protein ATPase

mol wt

110 kDa

storage temp.

2-8°C

InChI

1S/C6H10O2/c1-3-4-8-5-6(2)7/h1,6-7H,4-5H2,2H3

InChI key

GZCWLCBFPRFLKL-UHFFFAOYSA-N

General description

Acid phosphatase from sweet potato is a phosphomonoesterase, which can appear in multiple molecular forms of similar molecular mass but with different isoelectric points.

Application

Potato acid phosphatase is used as a dephosphorylating reagent in thiochrome assays for the detection of thiamin in biological samples. In this assay, it was shown to be more effective than acid phosphatases from wheat germ or α-amylase.
Sweet potato acid phosphatase has been used in a study as a pre-column enzyme reactor via a covalent bond with glutaraldehyde and aminopropyl controlled-pore glass. It has also been used in a study to investigate the use of tyrosine, histidine, and cysteine as ligands for Mn(III) in sweet potato phosphatase.

Biochem/physiol Actions

Acid phosphatases (APase) are a family of enzymes that non-specifically catalyze the hydrolysis of monoesters and anhydrides of phosphoric acid to produce inorganic phosphate at an optimum pH of 4 to 7 by the following reaction: APaseR-PO4 + H2O --------------- R-OH + HOPO3 2+Their function in the production, transport, and recycling of phosphate is critical for the metabolic and energy transduction processes of the cell. As a group, Apases may be as important as kinases in regulatory processes.

Unit Definition

One unit will hydrolyze 1.0 μmole of p-nitrophenyl phosphate per min at pH 4.8 at 37 °C.

Physical form

Suspension in 1.8 M (NH4)2SO4, 10 mM MgCl2, pH 5.3

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H334

Hazard Classifications

Resp. Sens. 1

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

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Tatsuya Kusudo et al.
Bioscience, biotechnology, and biochemistry, 67(7), 1609-1611 (2003-08-13)
Purple acid phosphatase (PAP) was purified from sweet potato dry powder, which is used as a food additive. Spectrometric and enzymatic analyses, and analysis of the amino-terminal sequence indicated that the purified purple acid phosphatase was PAP1. High activity in
An unstable manganese(III) complex incorporating ligand donor types proposed for an acid phosphatase from sweet potato: (p-nitrobenzenethiolato)[N,N'-ethylenebis(salicylideneaminato)]manganese(III)
Gohdes, J. and W. Armstrong
Inorganic Chemistry, 27, 1841-1842 (1988)
D T Wyatt et al.
Clinical chemistry, 35(11), 2173-2178 (1989-11-01)
We analyzed extensively a modified thiochrome method for thiamin analysis. Acid phosphatase (EC 3.1.3.2) from potato was superior to either alpha-amylase or acid phosphatase from wheat germ as a dephosphorylating agent. Timing of cyanogen bromide exposure was important, but the
Mina Solhtalab et al.
Environmental science & technology, 56(22), 16441-16452 (2022-10-26)
Among ubiquitous phosphorus (P) reserves in environmental matrices are ribonucleic acid (RNA) and polyphosphate (polyP), which are, respectively, organic and inorganic P-containing biopolymers. Relevant to P recycling from these biopolymers, much remains unknown about the kinetics and mechanisms of different
S M Duff et al.
Proceedings of the National Academy of Sciences of the United States of America, 88(21), 9538-9542 (1991-11-01)
Induction of phosphatase activity is an important component of the plant cell response to phosphate deficiency. Suspension cell cultures of Brassica nigra contain two major inducible acid phosphatase (APase) isozymes; vacuolar phosphoenolpyruvate (PEP) APase and cell wall nonspecific APase. Polyclonal
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Enzymatic Assay of Acid Phosphatase (EC 3.1.3.2)

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