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C2014

Sigma-Aldrich

胶原酶 来源于溶组织梭菌

0.2 μm filtered, Type V-S, ≥1 FALGPA units/mg solid, ≥125 CDU/mg solid

同義詞:

梭菌肽酶 A

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About This Item

CAS號碼:
酶委員會編號:
EC號碼:
MDL號碼:
分類程式碼代碼:
12352204
NACRES:
NA.54

品質等級

無菌

0.2 μm filtered

形狀

lyophilized powder

比活性

≥1 FALGPA units/mg solid
≥125 CDU/mg solid

分子量

68-125 kDa

儲存溫度

−20°C

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應用

胶原酶已被用于制备动脉组织,用于研究晚期糖基化终产物(AGE)。该酶还与其他蛋白酶一起用于人肿瘤、小鼠肾、人脑、肺上皮和许多其他组织的解聚。它在肝脏和肾脏灌注研究,胰腺消化和非实质肝细胞的分离中也是有效的。

生化/生理作用

有效地从组织中释放细胞需要胶原酶和中性蛋白酶的共同作用。每摩尔酶用 4 克原子钙 (Ca2+) 激活胶原酶。一般认为培养滤液至少含有 7 种不同的蛋白酶,分子量范围为 68-130 kDa(最适用 pH:6.3-8.8)。该酶识别序列-R-Pro-8-X-Gly-Pro-R-,其中 X 是最常见的中性氨基酸。
每摩尔胶原蛋白酶被4g原子钙活化。 它被乙二醇-双(β-氨基乙基醚)-N,NN′,N′-四乙酸,β-巯基乙醇、谷胱甘肽、巯基乙酸和8-羟基喹啉抑制。

單位定義

一个胶原蛋白消化单元(CDU)从牛跟腱胶原蛋白中释放的肽链量和1.0 μ亮氨酸,5小时,pH7.4,37℃,在钙离子存在下的茚三酮颜色相同。一个 FALGPA水解单元每分钟,25℃,水解1.0 μmole 呋喃基丙烯酰-Leu-Gly-Pro-Ala。一个中性蛋白酶单元水解酪蛋白,产生颜色和1.0 μmole 酪氨酸每5小时,pH7.5,37℃下产生的相同。一个梭菌蛋白酶单元在DTT存在下,pH7.6,25℃,每分钟水解1.0 μmole BAEE。

準備報告

V 型制备 (C9263)

分析報告

也具有梭菌蛋白酶、非特异性中性蛋白酶和胰蛋白酶活性。

象形圖

Health hazardExclamation mark

訊號詞

Danger

危險分類

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

標靶器官

Respiratory system

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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To measure collagenase activity, N-(3-[2-Furyl]acryloyl)-Leu-Gly-Pro-Ala is used in a continuous spectrophotometric rate determination at 345 nm. Collagenase hydrolyzes collagen peptide bonds.

為了測量膠原蛋白酶的活性,使用 N-(3-[2-糠基]丙烯酰基)-Leu-Gly-Pro-Ala 在 345 nm 下進行連續分光光度速率測定。膠原蛋白酶水解膠原蛋白肽鍵。

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