跳转至内容
Merck
所有图片(4)

文件

P2308

Sigma-Aldrich

蛋白酶 K 来源于林伯氏白色念球菌

lyophilized powder, BioUltra, ≥30 units/mg protein, for molecular biology

别名:

肽链内切酶

登录查看公司和协议定价
所有图片(4)

About This Item

CAS号:
39450-01-6
EC 号:
3.4.21.64 (BRENDA, IUBMB)
EC號碼:
254-457-8
MDL號碼:
MFCD00132129
分類程式碼代碼:
12352204
eCl@ss:
32160410
NACRES:
NA.54

等級

for molecular biology

品質等級

400

產品線

BioUltra

形狀

lyophilized powder

比活性

≥30 units/mg protein

分子量

28.93 kDa

成份

Protein, ≥90% biuret

雜質

≤1 ppm DNA

異物活動

DNAse, Nickase and RNAse, none detected

運輸包裝

wet ice

儲存溫度

−20°C

正在寻找类似产品? 访问 产品对比指南

相关类别

應用

在分离DNA和RNA的过程中，用于核酸酶的蛋白水解失活。
用于去除内毒素结合的阳离子蛋白，如溶菌酶和核糖核酸酶A。
据报道，其可用于分离肝、酵母和绿豆线粒体
用于测定酶在细胞膜上的定位
用于石蜡包埋组织切片的处理，暴露用于抗体标记的抗原结合位点。
用于可传播海绵状脑病(TSE)研究中朊病毒脑组织样本蛋白的消化。

生化／生理作用

蛋白酶K是一种稳定且具有高活性的丝氨酸蛋白酶。晶体和分子结构研究证据表明该酶属于枯草素家族，具有活性位点催化三联体(Asp39-His69-Ser224)。它在一系列广泛的环境中均稳定：pH，缓冲盐，去污剂（SDS）以及温度。 在0.1-0.5% SDS存在的情况下，蛋白酶K可保持活性，在不损害分离DNA完整性的前提下，可以消化DNA制剂中的多种蛋白质和核酸酶。

單位定義

在pH 7.5，37 °C 条件下，一单位的酶每分钟将会尿素变性的血红蛋白以产生与1.0 μ摩尔 (181 μg) 酪氨酸等同的颜色（Folin-Ciocalteu试剂提供的颜色）。

Not finding the right product?  

Try our 产品选型工具.

也與該產品經常一起購買

产品编号
说明
价格

同類產品

产品编号
说明
价格

建議使用防濺手套

产品编号
说明
价格

相關產品

产品编号
说明
价格

象形圖

Health hazardExclamation mark
GHS08,GHS07

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

Choose from one of the most recent versions:

分析证书(COA)

Lot/Batch Number
0000108728
0000398759
0000398765
0000205054
0000396515

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

Mamoru Oshiki et al.
Frontiers in microbiology, 9, 830-830 (2018-05-15)
Detection and genotyping of pathogenic RNA viruses in human and environmental samples are useful for monitoring the circulation and prevalence of these pathogens, whereas a conventional PCR assay followed by Sanger sequencing is time-consuming and laborious. The present study aimed
Mark F Sabbagh et al.
eLife, 7 (2018-09-07)
Vascular endothelial cell (EC) function depends on appropriate organ-specific molecular and cellular specializations. To explore genomic mechanisms that control this specialization, we have analyzed and compared the transcriptome, accessible chromatin, and DNA methylome landscapes from mouse brain, liver, lung, and
Margarita Zayas et al.
PLoS pathogens, 12(1), e1005376-e1005376 (2016-01-05)
Hepatitis C virus (HCV) nonstructural protein (NS)5A is a RNA-binding protein composed of a N-terminal membrane anchor, a structured domain I (DI) and two intrinsically disordered domains (DII and DIII) interacting with viral and cellular proteins. While DI and DII
Kumiko Muta et al.
Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 31(10), 1615-1623 (2016-05-18)
Although histone acetylation, an epigenetic modification, has been reported to be related to the progression of various diseases, its involvement in nephrosclerosis is unclear. Dahl salt-sensitive rats were used as a model of nephrosclerosis in this study. The rats were
Sreenivas Adurthi et al.
Scientific reports, 7(1), 17289-17289 (2017-12-13)
Oestrogen controls Foxp3 expression in regulatory T cells (Treg cells) via a mechanism thought to involve oestrogen receptor alpha (ERα), but the molecular basis and functional impact of ERα signalling in Treg cells remain unclear. We report that ERα ligand
查看所有相关文献

商品

Proteinase K: Introduction & Applications

Proteinase K aids in molecular biology applications by digesting structural proteins, removing nucleases, and isolating intact genomic DNA.

Proteinase K in Tissue Samples

Pro K aids in disrupting cell membranes for DNA release, crucial for downstream molecular biology techniques.

How Proteinase K Can Be Used in Blood DNA Extraction Applications

In blood DNA extraction, Proteinase K, an enzyme commonly used to degrade proteins, can help break down the cellular and nuclear membranes, releasing DNA from the cells that protect it from degradation and increase purity/yield making it more suitable for various molecular biology techniques.

Guide on How to Use Proteinase K in Different Procedures

Guidelines on use of proteinase K, an enzyme commonly used to degrade proteins, and protect DNA and RNA from degradation in samples.

查看所有结果

实验方案

GenElute™ Blood Genomic DNA Kit Protocol

The GenElute™ Blood Genomic DNA Kit Protocol provides a simple and convenient way to isolate pure genomic DNA from fresh or aged whole blood.

GenElute™ Mammalian Genomic DNA Miniprep Kit Protocol

The GenElute Mammalian Genomic DNA Purification Kit Protocol describes the isolation of pure, high molecular weight DNA from a variety of mammalian sources.

GenElute™ 哺乳动物基因组 DNA 微量提取试剂盒实验方案

GenElute 哺乳动物基因组 DNA 纯化方案阐述了从多种哺乳动物来源中分离纯高分子量 DNA 的方法。

Proteinase K Enzymatic Assay

Proteinase K activity measured via spectrophotometry using hemoglobin substrate, crucial for enzyme characterization.

查看所有结果

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门