Yes, as mentioned in the product datasheet, the powder form should be stored at –20°C. Stock solutions may be prepared at 100 mg/mL in DMEM/F12 or other culture medium, and stored at –20°C in frozen aliquots. Avoid repeated freeze/thaw cycles. Please see the link below to review the product datasheet for additional information:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/173/127/c2139pis.pdf
C2139
胶原酶 来源于溶组织梭菌
Collagenase from Clostridium histolyticum
suitable for release of rat epididymal adipocytes and hepatocytes (for methodology see Type II and Type IV), Type VIII, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solid
别名:
梭菌肽酶 A
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100 MG
$183.00
500 MG
$736.00
1 G
$921.00
5 G
$3,710.00
About This Item
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一般描述
溶组织梭状芽胞杆菌 是一种致病梭状芽胞杆菌，可产生粗胶原酶。这是一种含有胶原酶的混合酶，为非特异性蛋白酶和梭菌蛋白酶。[1]
应用
生化/生理作用
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。
单位定义
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。
分析说明
也具有梭菌蛋白酶、非特异性中性蛋白酶和胰蛋白酶活性。
警示用语：
Danger
危险分类
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
储存分类代码
11 - Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
历史批次信息供参考:
分析证书(COA)
Lot/Batch Number
其他客户在看
Fleischer, S. and B. Fleischer
Methods in Enzymology, 192, 829-829 (1990)
Ce Tang et al.
Nature immunology, 19(7), 755-765 (2018-06-20)
The cytokines IL-17A and IL-17F have 50% amino-acid identity and bind the same receptor; however, their functional differences have remained obscure. Here we found that Il17f-/- mice resisted chemically induced colitis, but Il17a-/- mice did not, and that Il17f-/- CD45RBhiCD4+
Fleischer, S. and B. Fleischer
Methods in Enzymology, 173, 841-841 (1989)
Fleischer, S. and B. Fleischer
Methods in Enzymology, 191, 939-939 (1990)
Alan Moreira de Araujo et al.
Cells, 7(8) (2018-08-01)
Hepatocytes may rupture after a drug overdose, and their intracellular contents act as damage-associated molecular patterns (DAMPs) that lead to additional leukocyte infiltration, amplifying the original injury. Necrosis-derived DNA can be recognized as a DAMP, activating liver non-parenchymal cells (NPCs).
实验方案
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.
在测定胶原酶活性时，使用N-（3-[2-呋喃基]丙烯酰基）-Leu-Gly-Pro-Ala在345nm处进行连续分光光度法测定。胶原酶水解胶原肽键。
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Can I use C2139 to make collagenase solution with medium, and then store it at -20?
1 answer-
Helpful?
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is C2139 sterile ?
1 answer-
Product C2139 is not sterile.
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