- 產品描述
SIGMA試劑,周一,五定貨,3周左右到貨。
www.ejieshao.com
α-淀粉酶抑制劑 來源于小麥 (小麥種子) ,α-Amylase Inhibitor from Triticum aestivum (wheat seed) ,A1520 - Type I, lyophilized powder
activity | ≥1000 inhibitor U/mg protein (using human salivary α-amylase) |
≥200 inhibitor U/mg protein (using porcine pancreatic α-amylase) | |
composition | Protein, 35-65% biuret |
storage temp. | −20°C |
描述
Unit Definition
經 25°C 預孵育后,一單位本品可使兩單位 α-淀粉酶 (A0521) 的活性降低 50%。
Physical form
凍干粉,含如磷酸鈉之類的緩沖鹽。
Biochem/physiol Actions
Competitive inhibitor of human salivary α-amylase. KI = 2.9 nM, compared to a KM of 5.9 mM (calculated per mole of α-1,4-linked maltose residues).