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生物源
Porcine pancreas
品質等級
種類
Type I-A
形狀
saline suspension
比活性
≥1000 units/mg protein (E1%/280)
分子量
51-54 kDa
環保替代產品特色
Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
環保替代類別
, Enabling
運輸包裝
wet ice
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。
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。
我们致力于为您提供更环保的替代产品，以符合“绿色化学的12项原则”的一项或多项原则要求。当用于淀粉乙醇研究时，该产品经优化可提高能效和防止浪费。有关详细信息，请参阅《Biofiles》的文章。
應用
α-淀粉酶用于水解α-连接的多糖α键，如淀粉和糖原。产品 A6255 来自猪胰腺，为I-A 型。Sigma 公司生产的α-淀粉酶已被用于各种植物研究，如 拟南芥 代谢研究。
生化／生理作用
α-淀粉酶可水解三个或更多 α-(1,4)连接的 D-葡萄糖单位多糖中的 α-(1,4) 葡聚糖键。天然底物，如淀粉和糖原，被分解成葡萄糖和麦芽糖。来自猪胰腺的α-淀粉酶是一种糖蛋白，由约 475 个残基的单一多肽链组成，含有 2 个 SH 基团和 4 个二硫键以及保持稳定性所必需的紧密结合的 Ca 2 + 。
單位定義
一个单位将在20℃的pH 6.9下，在3分钟内从淀粉中释放1.0毫克麦芽糖
外觀
含 3 mM CaCl 的 2.9 M NaCl 悬液
準備報告
PMSF处理。2×结晶
其他說明
有关复合碳水化合物分析 酶的更多信息，请访问 www.sigma-aldrich.com/enzymeexplorer
訊號詞
Danger
危險聲明
危險分類
Resp. Sens. 1
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 1
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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