产品介绍 评论(0)
产品规格
纯度
≥95% by SDS-PAGE内毒素含量
<10 EU/mg储存条件
This product should be stored at -20℃ and can be stored for at least 12 months.
Avoid repeated freezing and thawing
背景介绍
由重组胶原酶混合组分和重组猪胰蛋白酶组成,其中重组胶原酶混合组分采用E.coli表达,对胶原蛋白特有的氨基酸序列Pro-X-Gly-Pro中的中性氨基酸 (X) 和甘氨酸之间的键具有特异性;重组猪胰蛋白酶则采用毕赤酵母进行重组表达,可以特异性的切割蛋白质中赖氨酸和精氨酸的羧基端肽键。重组胶原酶混合组分和重组猪胰蛋白酶均不含动物源成分,同时使用可以高效的消化心脏,肝脏,肾脏等动物器官,获得相对应的原代细胞。
产品组分
Components
S
M
L
Recombinant collagenase mixed components
1.0ml×2
4.0ml
10.0ml
Recombinant porcine trypsin
8.0ml
16.0ml
40.0ml
Size
Collagenase activity
Trypsin activity
S
>3500CDU
>25KU
M
>7000CDU
>50KU
L
>17500CDU
>125KU
操作步骤
注意事项
如果需要更多的细胞团块而不是单细胞,建议缩短消化时间或者减少胰蛋白酶的比例;
本品尽量避免反复冻融,如有剩余建议-20℃分装保存
酶活定义
- Collagenase activity definition: Within 5 hours, at pH 7.4, 37 °C and in the presence of calcium ions, peptides are released from collagen of bovine Achilles tendon, and the amount of enzyme equivalent to 1.0 µmol of leucine in ninhydrin is 1 CDU. Trypsin activity definition: At 25 °C, pH 7.6, reaction system 3.2 ml (1 cm light path), the amount of enzyme that hydrolyzes BAEE per minute to increase the absorbance at 253 nm by 0.003 is defined as 1 U.
生物活性








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