Recombinant Human His6-Ubiquitin Mutant K29R Protein, 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-HK29R
| Formulation | Lyophilized from a solution in HEPES. |
| 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.
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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).
Mutation of lysine 29 to arginine renders Ubiquitin unable to form poly-Ubiquitin chains via lysine 29 linkages with other Ubiquitinmolecules. Ubiquitin K29R can form a Ubiquitin-activating (E1) enzyme-catalyzed active thioester at the C-terminus allowing the molecule to be transferred to the lysines of substrate proteins. Ideal for the reduction in poly-Ubiquitin chain length/conjugation rates and determining if poly-Ubiquitin chains are K29 linked.
FAQs
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价格上第一种如果是几百万个SNP位点的一般是1000元左右，如果是单基因或少数几个基因的也就几十块钱。第二种全基因组测序的一般测序深度30X以上，90G左右数据，测序费用大概在8000左右，分析snp和Indel的变异费用在1000左右。
但是，目前完全不建议做。因为SNP的变异与疾病和表型的研究完全不够充分。单基因的遗传疾病根本不用测序自己就看出来了，多基因的复杂疾病基因遗传因素所占比例有限，只是一个相关概率问题，而且即便知道了也没什么手段，早点拿到的数据也是一堆ATCG和SNP变异和所谓风险值。
还有测序和数据分析费用在飞速下降，目前上万的全基因组测序同样的数据可能1年后只用几百块，真正有效的解读也还要等到几年后，没必要花这个冤枉钱。
但是以下人群有这个切实需要：肿瘤的突变分型（目前并没有特别靠谱的高通量测序产品，主要还是基于荧光定量PCR的检测试剂盒），新生儿的遗传病筛查（看个人接受程度）
价格上第一种如果是几百万个SNP位点的一般是1000元左右，如果是单基因或少数几个基因的也就几十块钱。第二种全基因组测序的一般测序深度30X以上，90G左右数据，测序费用大概在8000左右，分析snp和Indel的变异费用在1000左右。
但是，目前完全不建议做。因为SNP的变异与疾病和表型的研究完全不够充分。单基因的遗传疾病根本不用测序自己就看出来了，多基因的复杂疾病基因遗传因素所占比例有限，只是一个相关概率问题，而且即便知道了也没什么手段，早点拿到的数据也是一堆ATCG和SNP变异和所谓风险值。
还有测序和数据分析费用在飞速下降，目前上万的全基因组测序同样的数据可能1年后只用几百块，真正有效的解读也还要等到几年后，没必要花这个冤枉钱。
但是以下人群有这个切实需要：肿瘤的突变分型（目前并没有特别靠谱的高通量测序产品，主要还是基于荧光定量PCR的检测试剂盒），新生儿的遗传病筛查（看个人接受程度）
首先，不否认它比大多数国产的试剂盒做得好，提取的纯度、方便度和量，都还很不错。
其次，它是日本的。so我觉得实验室用用天根的，就非常好了。拒绝日货，从实验室做起。
定量结果显示：1.血液中有乙肝病毒DNA分子，受检者被乙肝病毒感染了；2.血液中的乙肝病毒浓度较高，积极治疗吧
向左转|向右转
如果是用转录出的cDNA做那跟平时就一样了。不需要特别的试剂盒、
加尾法是采用加A酶先对mirna进行加尾，然后再用带oligodt的引物反转录，他的反转录引物是通用的，一次反转录可以获得所有miRNA的cdna，效率高。茎环法是采用特异性反转录引物序列+颈环结构作为反转录引物进行反转录的，一次反转录只能获得一种mirna的cdna，可能有几种一起反转录的，这个我不太清楚一起反转录的效果。然后茎环法的经典即ABI的探针法定量试剂盒。我用过茎环法反转录+染料法定量的，下游引物为通用引物，结果不太好，就现在用的这家的他采用的是双向引物都是特异性的，效果还可以。不知道我说的清楚不，希望能对你有帮助。
