
BCA蛋白定量试剂盒—200T
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- 保存条件:
室温,-20℃
- 规格:
200T(促销)
产品名称:BCA蛋白定量试剂盒(试用装20T)
包装信息:
保存条件:
BCA试剂A和B室温保存,蛋白标准品-20℃冻存。本试剂盒自订购之日起一年内有效。
注意事项:
1、Ma D C; Zhang N N; Zhang Y N, et al., Salvianolic Acids for Injection alleviates cerebral ischemia/reperfusion injury by switching M1/M2 phenotypes and inhibiting NLRP3 inflammasome/pyroptosis axis in microglia in vivo and in vitro. J Ethnopharmacol 2021, 270, 113776.
PubMed: 33421597
2、Liu S; Fang Y; Yu J, et al., Hawthorn polyphenols reduce high glucose-induced inflammation and apoptosis in ARPE-19 cells by regulating miR-34a/SIRT1 to reduce acetylation. J Food Biochem 2021, e13623.
PubMed: 33491221
3、Zhao J; Liu Z; Chang Z, Osteogenic differentiation and calcification of human aortic smooth muscle cells is induced by the RCN2/STAT3/miR-155-5p feedback loop. Vascul Pharmacol 2020, 106821.
PubMed: 33221530
4、Ma D C; Zhang N N; Zhang Y N, et al., Kv1.3 channel blockade alleviates cerebral ischemia/reperfusion injury by reshaping M1/M2 phenotypes and compromising the activation of NLRP3 inflammasome in microglia. Exp Neurol 2020, 332, 113399.
PubMed: 32652099
5、Quan Q; Li X; Feng J, et al., Ginsenoside Rg1 reduces βamyloid levels by inhibiting CDΚ5induced PPARγ phosphorylation in a neuron model of Alzheimer's disease. Mol Med Rep 2020, 22 (4), 3277-3288.
PubMed: 32945455
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文献和实验1、Ma D C; Zhang N N; Zhang Y N, et al., Salvianolic Acids for Injection alleviates cerebral ischemia/reperfusion injury by switching M1/M2 phenotypes and inhibiting NLRP3 inflammasome/pyroptosis axis in microglia in vivo and in vitro. J Ethnopharmacol 2021, 270, 113776.
PubMed: 33421597
2、Liu S; Fang Y; Yu J, et al., Hawthorn polyphenols reduce high glucose-induced inflammation and apoptosis in ARPE-19 cells by regulating miR-34a/SIRT1 to reduce acetylation. J Food Biochem 2021, e13623.
PubMed: 33491221
3、Zhao J; Liu Z; Chang Z, Osteogenic differentiation and calcification of human aortic smooth muscle cells is induced by the RCN2/STAT3/miR-155-5p feedback loop. Vascul Pharmacol 2020, 106821.
PubMed: 33221530
4、Ma D C; Zhang N N; Zhang Y N, et al., Kv1.3 channel blockade alleviates cerebral ischemia/reperfusion injury by reshaping M1/M2 phenotypes and compromising the activation of NLRP3 inflammasome in microglia. Exp Neurol 2020, 332, 113399.
PubMed: 32652099
5、Quan Q; Li X; Feng J, et al., Ginsenoside Rg1 reduces βamyloid levels by inhibiting CDΚ5induced PPARγ phosphorylation in a neuron model of Alzheimer's disease. Mol Med Rep 2020, 22 (4), 3277-3288.
PubMed: 32945455
法是十分常用的蛋白质比色定量方法,很多试剂供应商都提供基于比色皿和微孔板的BCA蛋白定量试剂盒。BCA蛋白定量法相对于其它比色定量法具有操作简单、稳定、灵敏度高等优点。相对于蛋白质的固有的280nm吸收峰检测,BCA检测法提高了蛋白检测灵敏度和特异性,消除了核酸的干扰,核酸干扰在对细胞裂解物或其他生物样品进行蛋白定量时总是一个难以避免的干扰。在碱性条件下,蛋白将Cu2+ 还原为Cu+ ,Cu+ 与BCA 试剂形成紫色络合物,如图1,其吸光值与蛋白浓度成正比。测定在562nm 处的吸收值,并与标准
蛋白定量是生物学实验不可缺少的一部分。为验证细胞裂解是否成功,或为了将多个样品进行平行实验比较或标准化保存,需对细胞裂解液进行蛋白定量;为了判定蛋白的产量,需对纯化好的蛋白进行定量;为了将纯化好的蛋白用生物素或者报告酶进行标记,同样需首先对蛋白样品进行定量,以保证标记反应在适当的化学浓度下进行。现今有很多商品化的蛋白定量试剂盒,如BCA定量试剂盒等,操作起来,简便快捷。当然也有不少实验室,还是采用传统的方法进行蛋白定量。现将蛋白定量过程中所遇的一些问题小结一下。Q1: 采用考马斯亮蓝G5-20
对象为组织样品,取适量(250~500mg)新鲜组织样品或正确保存的组织样品,加1ml含蛋白酶抑制剂的总蛋白抽提试剂(或核蛋白抽提试剂),匀浆后抽提总蛋白(或核蛋白)。实验对象为细胞样品,每份样品取1×106~1×107细胞,PBS清洗细胞,去PBS加0.1ml~1ml含蛋白酶抑制剂的总蛋白抽提试剂(或核蛋白抽提试剂)抽提总蛋白(或核蛋白)。2. 蛋白质定量:按BCA蛋白质定量试剂盒操作说明操作,测定样品浓度。3. 变性聚丙烯酰胺不连续凝胶电泳(SDS-PAGE):将准备好的样品液和预染
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