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重要文件

A2643

Sigma-Aldrich

α-淀粉酶 来源于猪胰腺

Type VII-A, DFP treated, ammonium sulfate suspension, ≥500 units/mg protein (E1%/280)

同義詞:

PPA, al1,4 葡聚糖-4-葡萄糖水解酶,, 猪胎盘β-N-乙酰葡糖胺糖苷酶, 猪胰腺α-淀粉酶

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About This Item

酶委員會編號:
MDL號碼:
分類程式碼代碼:
12352204

種類

Type VII-A

形狀

ammonium sulfate suspension

比活性

≥500 units/mg protein (E1%/280)

儲存溫度

2-8°C

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一般說明

分子质量:51-54 kDa。
从猪胰腺中分离的α-淀粉酶是一种糖蛋白。它是由约475个残基组成的一条多肽链(包含2个SH基团和4个二硫键)以及一个紧密结合的Ca2+ (稳定性所必需的)组成的。氯离子是活性和稳定性所必需的。活性pH范围为5.5至8.0,最适pH为7。

單位定義

One unit will liberate 1.0 mg of maltose from starch in 3 min at pH 6.9 at 20 °C.

外觀

Suspension in 3.2 M (NH4)2SO4, pH 6.1

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分析證明 (COA)

Lot/Batch Number

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