ACP 酸性磷酸酶（来源于马铃薯）

有效期	3年
来源	来源于马铃薯
别名	酸性磷酸酶
英文名称	Acid Phosphatase from potato
CAS	9001-77-8
储存条件	-20℃
纯度	20mg/ml in PBS
酶活/效价	0.9 unit/mg
外观（性状）	深褐色粉末
单位	瓶

酸性磷酸酶（acid phosphatase，ACP）主要存在于巨噬细胞，定位于溶酶体内。ACP测定主要用于前列腺癌的辅助诊断。

 

Acid Phosphatase from potato 
Product Number:    P9730 
Storage Temperature:   -20 °C 
CAS Number:     9001-77-8 
EC Number:     3.1.3.2 
Synonyms: Apase; Orthophosphoric-monoester phosphohydrolase (acid optimum) 
Product Description 
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: R-PO4 + H2O→R-OH + HOPO32+ 
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. 
Plant APases have been localized in the cytosol, vacuoles,and cell walls. One key role is phosphate acquisition to mobilize 
organic phosphates in the soil.Phosphate starvation also induces APase generation. 
Potato tuber APase is a monomeric glycoprotein. The carbohydrate component makes up 16.6% of the molecular mass. 
Molecular mass: 69 kDa 
Carbohydrate residues (%):Mannose 5.0, Glucosamine 3.6, Rhamnose 3.4, Glucose 2.5, Galactose 1.5 
pH Optimum: 5.0–5.3 
pH Range: 4–7 
Temperature optimum: 37 °C 
Substrates:α-glyceryophosphate; ATP, fructose-6-phosphate, fructose-6-phosphate, inorganic pyrophosphate, 
glucose-6-phosphate, p-nitrophenyl phosphate 
KM(mM):  p-nitrophenyl phosphate 1.25, inorganic pyrophosphate 40.0 Activators:Cu2+, Mg2+, Mn2+, Zn2+, Hg2+(below 0.4 mM) Inhibitors:Al3+, Hg2+(above 0.4 mM), MoO42–, Zn2+, urea 
This product is partially purified from potato tubers and is supplied as a lyophilized powder. 
Specific activity: 0.5–3.0 units/mg solid 
Unit definition: One unit will hydrolyze 1.0 µmole of p-nitrophenyl phosphate per minute at pH 4.8 at 37 °C. 
APase is assayed spectrophotometrically in a 1.1 ml reaction mixture containing 41 mM citrate buffer, pH 4.8 at 37 °C, 6.9 
mM p-nitrophenyl phosphate, and 0.015–0.025 unit APase. 
Preparation Instructions 
APase is soluble in cold water (0.15–0.25 unit/ml). Prepare solution immediately before use. 
Storage/Stability 
Store the product at –20 °C. When stored at –20 °C, the enzyme retains activity for at least one year. 
APase can lose half its activity after 30 minutes at 60 °C and 100% of its activity after two hours at 70 °C. 
Precautions and Disclaimer 
For Laboratory Use Only.  Not for drug, household or other uses. 
Solarbio

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