Recombinant Human His6-Ubiquitin Mutant with K11 only, CF Summary
Product Datasheets
Carrier Free
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins.Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration.The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard.In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
UM-HK110
Formulation | Lyophilized from a solution of deionized water. |
Reconstitution | Reconstitute in aqueous buffer or deionized water. |
Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
Stability & Storage: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Reconstitution Calculator
Background: Ubiquitin
Ubiquitin is a 76 amino acid (aa) protein that is ubiquitously expressed in all eukaryotic organisms. Ubiquitin is highly conserved with 96% aa sequence identity shared between human and yeast Ubiquitin, and 100% aa sequence identity shared between human and mouse Ubiquitin (1). In mammals, four Ubiquitin genes encode for two Ubiquitin-ribosomal fusion proteins and two poly-Ubiquitin proteins. Cleavage of the Ubiquitin precursors by deubiquitinating enzymes gives rise to identical Ubiquitin monomers each with a predicted molecular weight of 8.6 kDa. Conjugation of Ubiquitin to target proteins involves the formation of an isopeptide bond between the C-terminal glycine residue of Ubiquitin and a lysine residue in the target protein. This process of conjugation, referred to as ubiquitination or ubiquitylation, is a multi-step process that requires three enzymes: a Ubiquitin-activating (E1) enzyme, a Ubiquitin-conjugating (E2) enzyme, and a Ubiquitin ligase (E3). Ubiquitination is classically recognized as a mechanism to target proteins for degradation and as a result, Ubiquitin was originally named ATP-dependent Proteolysis Factor 1 (APF-1) (2,3). In addition to protein degradation, ubiquitination has been shown to mediate a variety of biological processes such as signal transduction, endocytosis, and post-endocytic sorting (4-7).
This Ubiquitin mutant contains only a single lysine, K11, with all other lysines mutated to arginine. This mutation renders Ubiquitin able to form poly-Ubiquitin chains with other Ubiquitin molecules only via the K11 lysine.
- Sharp, P.M. & W.-H. Li. (1987) Trends Ecol. Evol. 2:328.
- Ciechanover, A. et al. (1980 ) Proc. Natl. Acad. Sci. USA 77:1365.
- Hershko, A. et al. (1980) Proc. Natl. Acad. Sci. USA 77:1783.
- Greene, W. et al. (2012) PLoS Pathog. 8:e1002703.
- Tong, X. et al. (2012) J. Biol. Chem. 287:25280.
- Wei, W. et al. (2004) Nature 428:194.
- Wertz, I.E. et al. (2004) Nature 430:694.
FAQs
No product specific FAQs exist for this product, however you may
View all Proteins and Enzyme FAQsRecombinant Enzymes
Recombinant Human His6-UAF1 Protein, CF
Recombinant Human UCH-L3 Protein, CF
Recombinant Human His6-USP7 Protein, CF
Recombinant Human Isopeptidase T/USP5 Protein, CF
Recombinant Human STAM-1 Protein, CF
Recombinant Human Ubiquitin Activating Enzyme (UBE1), CF
Recombinant Human His6-UBE2N/UBE2V2 Complex Protein, CF
Recombinant Human His6UBE2S Protein, CF
Recombinant Human UBE2K/E2-25K Protein, CF
Reviews for Recombinant Human His6-Ubiquitin Mutant with K11 only, CF
There are currently no reviews for this product. Be the first toreview Recombinant Human His6-Ubiquitin Mutant with K11 only, CF and earn rewards!
Have you used Recombinant Human His6-Ubiquitin Mutant with K11 only, CF?
Submit a review and receive an Amazon gift card.
$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image
$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image
ebiomall.com
>
>
>
>
>
>
>
>
>
>
>
>
2.SNaPshot 该技术由美应用物公司(ABI)发基于荧光标记单碱基延伸原理型技术称测序主要针等通量SNP型项目含测序酶、四种荧光标记ddNTP、紧临态位点5’-端同度延伸引物PCR产物模板反应体系引物延伸碱基即终止经ABI测序仪检测根据峰移位置确定该延伸产物应SNP位点根据峰颜色知掺入碱基种类确定该本基型于PCR产物模板通重PCR反应体系获通用于10-30SNP位点析
用takara的in-fusion方法做了个重组质粒,如左图PCR验证,右起第二道是空载质粒为模板的对照。右图是酶切验证,两个图片结合起来觉得除了第四个单克隆外,其他几个应该都可能是阳性克隆。结果送了1,2两个样品后测序的结果都不对。为什么会这样。
2.SNaPshot法 该技术由美国应用生物公司(ABI)开发,是基于荧光标记单碱基延伸原理的分型技术,也称小测序,主要针对中等通量的SNP分型项目。在一个含有测序酶、四种荧光标记ddNTP、紧临多态位点5’-端的不同长度延伸引物和PCR产物模板的反应体系中,引物延伸一个碱基即终止,经ABI测序仪检测后,根据峰的移动位置确定该延伸产物对应的SNP位点,根据峰的颜色可得知掺入的碱基种类,从而确定该样本的基因型。对于PCR产物模板可通过多重PCR反应体系来获得。通常用于10-30个SNP位点分析。
期待着高手们的指点,谢谢。
两个基因大小分别230kb和450kb,酶切后,450kb的有目的条带,但很弱,230kb的质粒条带亮,其下方有一很微弱条带,用的酶分别是:Ncol和Spel体系是(Takara,两个酶切体系不同,用的官网推荐体系):
NcoI1μl
Spel1μl
10×KBuffer2μl
0.1%BSA2μl
DNA3ul
灭菌水upto20μl37℃4h电泳1h
以这些标准看,目前的基因组测序结果,还没有一个是完美的。
人类基因组:缺点在哪里?
首先,人类基因组还不够精确。人是“二倍体”,也就是有一半遗传物质来自父亲,一半遗传物质来自母亲,且在受精卵形成过程中,还会发生基因重组,这是人类遗传多样性的来源之一。科学家们需要更精确的“单倍型”数据,这样基因组才够“完美”,而这种“完美”正是研究者们追求的目标。
其次,人类基因组还不够多元。
按照传统的人种分类,人类按照肤色黑白黄棕,被粗分为四大类:尼格罗人种、高加索人种、蒙古人种、澳大利亚人种。基因组测序数据是从高加索人种开始的,人类基因组计划是人类的标准参考基因组,也是高加索人种的标准参考基因组。文特尔的基因组,测序对象是他自己,同样是高加索人种。
然而,从基因组研究的角度,为了尽可能地包括各种遗传背景,需要为更多族裔建立自己的参考基因组。
资料来源:http://www.mv163.cn/jkgl/news/2015/1224/5227.html
【之前构建的4个重组质粒里也有两个出现这样的问题(aagtcc变成agtcc),但是酶切能切出插入的片段】
目前问测序公司得到的答复是样品可能不是单克隆,测序结果是不准确的,建议重新挑取单克隆测序。
不知道还有没有别的方法?
目的片段用kpn1和xho1双酶切,然后连接到PGL4.10上,结果用RPV3测序出来目的序列是反向互补的,这是什么原因导致的?
暂无品牌问答