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Product data sheet PD-40508ES
Collagenase II 胶原酶II型 Collagenase II 胶原酶II型
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Collagenase II 胶原酶II型

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细胞制备组织解离
Product no.40508ES Sizes2 options SourceYeasen · Official
Cat. No. 40508ES60
现货 $335.00 促$365.00
Qty 1
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Cat.No Spec Price Status
40508ES60 100 mg $335.00促$365.00 现货 Enquire
40508ES76 1 g $3,285.00 现货 Enquire
Submit enquiry Price is on application; bulk sizes can be sampled on request.

Overview

Specifications

Brand翌圣生物 Yeasen
Cat.No40508ES
Specification酶活力单位定义在37℃,pH7.5 的条件下,5 h内水解胶原产生相当于1 µM L-亮氨酸的酶量定义为1个酶活力单位。
Origin翌圣生物科技(上海)股份有限公司
应用方法 细胞制备用于心脏、骨、肌肉、胸腺和软骨等组织来源细胞的制备 组织解离用于心、甲状腺、唾液腺、肝、骨、软骨等组织细胞解离
生物特性参数 细胞产品子类细胞分离与消化 产品类型胶原酶II型 应用用于心脏、骨、肌肉、胸腺和软骨等组织来源细胞制备 来源种属溶组织梭菌
样本类型 组织 细胞
技术参数 浓度储存液100 mg/mL;工作浓度0.5-2.5 mg/mL 储存条件4℃避光保存2年;储存液-20℃避光冻存 运输条件室温运输 酶活力≥125 U/mg solid 产品形式粉末
实验类型 组织分离利用胶原酶消化组织块获得细胞 器官灌注通过灌注胶原酶解离器官组织 神经元培养用于交感神经元的分离与培养

FAQ

Q1:只用于分离细胞,选哪种胶原酶合适?

A1:对于组织解离,常使用粗制胶原酶制剂,例如弹性蛋白酶,胰蛋白酶或木瓜蛋白酶等;对于胶原蛋白结构和生物合成研究,常使用更高纯度的胶原酶制剂,不含其他蛋白水解活性。

Q2:要把肿瘤细胞分散成单个细胞做流式检测,选择哪一种胶原酶比较适合?需要区分肿瘤发生的部位吗?后续用来做流式,不同消化强度对细胞表面抗原的影响大吗?

A2:会影响细胞表面抗原,可以选择对抗原影响较小的胶原酶Ⅲ、胶原酶Ⅳ。

Q3:胶原酶使用会受到血清影响吗?

A3:胶原不会受到培养细胞所用的血清影响。

Q4:胶原酶的使用会受哪些抑制剂影响?

A4:胶原酶的抑制剂有 EDTA  、EGTA 等;二是重金属离子(Hg2+,Pb2+,Cd2+);还有一些化学试剂如 Cysteine、 histidine、DTT、2-mercaptoethanol、o-phenanthroline 等对胶原酶也有抑制作用。

Q5:用 PBS 溶解可以吗?用什么工作液浓度溶解?

A5:建议在 Hank’s,Earle’s 或者其他平衡盐溶液中溶解,推荐使用工作浓度 0.05 % ~0.5 % (w/v)。

Q6:实验过程中消化作用不佳

A6:(1)如果是酶活不强或钙离子不足导致,应在低温干燥条件下储存胶原酶,胶原酶溶液分装后冻存(2)如果是钙离子不足导致,应将胶原酶溶液中钙离子浓度设置为 5mM

Q7:使用过程中出现细胞死亡

A7:(1)如果是蛋白酶过量,应减少蛋白酶接触时间或是加入白蛋白或灭活血清(2)如果是 pH 改变应使用缓冲液(如 HBSS);经常检查并重新调节 pH(3)如果氧气太少,应给消化液通无菌空气

Q8: 实验中出现细胞受损怎么办?

A8: 如果是蛋白酶过多导致,应减少蛋白酶用量或是加入白蛋白或灭活血清

Documents & Citations

Published citations

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