Recombinant Human Penta-Ub/Ub5 WT Chains (K48-linked), 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.
UC-216B
| Formulation | 1 mg/ml (23 μM) in sterile, deionized water |
| Shipping | The product is shipped with polar packs. 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: Penta-Ubiquitin
With a predicted molecular weight of 43 kDa, penta-Ubiquitin chains are composed of five Ubiquitin monomers that are covalently linked through isopeptide bonds, which typically form between a lysine residue of one Ubiquitin molecule and the C-terminal glycine residue of another Ubiquitin molecule (1). Each human Ubiquitin monomer is 76 amino acids (aa) in length and shares 96% and 100% aa identity with yeast and mouse Ubiquitin, respectively (2). Seven of the 76 aa in Ubiquitin are lysine residues that can participate in poly-Ubiquitin chain formation. Linkage through each of the lysine residues is thought to serve as a signal that affects protein degradation, signaling, trafficking, and other cellular processes (3-8).
Linkage specific penta-Ub can be used to investigate mechanism of binding and recognition by E1 or E2 enzymes, deubiquitinating enzymes, E3 ligases, the proteasome or other proteins that contain Ubiquitin-associated domains (UBAs) or Ubiquitin-interacting motifs (UIMs). This product is formed with wild-type ubiquitin and linkage-specific enzymes. It has been shown that the rate of Ubiquitin-substrate conjugate degradation is related to poly-Ubiquitin chain length. Tetra-Ubiquitin is the minimal unit required for recognition by the proteasome, and longer chains probably have enhanced binding to proteasomal subunits and may be more resistant to disassembly by a proteasome-associated isopeptidases.
- Scheffner, M. et al. (1995) Nature 373:81.
- Sharp, P.M. & W.-H. Li (1987) Trends Ecol. Evol. 2:328.
- Behrends, C. & J.W. Harper (2011) Nat. Struct. Mol. Biol. 18:520.
- Greene, W. et al. (2012) PLoS Pathog. 8:e1002703.
- Henry, A.G. et al. (2012) Dev. Cell 23:519.
- Tong, X. et al. (2012) J. Biol. Chem. 287:25280.
- Wei, W. et al. (2004) Nature 428:194.
- Zhang, J. et al. (2012) J. Biol. Chem. 287:28646.
Citations for Recombinant Human Penta-Ub/Ub5 WT Chains (K48-linked), CF
R&D Systems personnel manually curate a database that contains references using R&D Systems products.The data collected includes not only links to publications in PubMed,but also provides information about sample types, species, and experimental conditions.
2Citations: Showing 1 - 2Filter your results:
Filter by:
- ZUFSP Deubiquitylates K63-Linked Polyubiquitin Chains to Promote Genome StabilityAuthors: P Haahr, N Borgermann, X Guo, D Typas, D Achuthanku, S Hoffmann, R Shearer, TK Sixma, N MailandMol. Cell, 2018;0(0):.Species: HumanSample Types: Cell LysatesApplications: Bioassay
- Identification Of Small Molecule TRABID Deubiquitinase Inhibitors ByComputation-Based Virtual Screen.Authors: Shi T, Bao J, Wang N, Zheng J, Wu DBMC Chem Biol, 2012;12(1):4.Species: N/ASample Types: Recombinant ProteinApplications: Bioassay
FAQs
No product specific FAQs exist for this product, however you may
View all Proteins and Enzyme FAQsReviews for Recombinant Human Penta-Ub/Ub5 WT Chains (K48-linked), CF
There are currently no reviews for this product. Be the first toreview Recombinant Human Penta-Ub/Ub5 WT Chains (K48-linked), CF and earn rewards!
Have you used Recombinant Human Penta-Ub/Ub5 WT Chains (K48-linked), 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
>
>
>
>
>
>
>
>
>
>
>
>
加入溶液把搅拌子放在烧杯溶液中，将控温探头固定在橡胶夹头上，加热头插入至溶液中，不能影响到搅拌子，然后先插上仪器接插的电源插头，再接通电源打开电源调速开关，指标灯亮，即开始工作。
调速是由低速逐步调至高速，不允许高速档直接起动，以免搅拌子不同步，引起跳动。加热有开关控制，打开加热源开关，选择所需的温度，绿灯亮表明加热盘工作，红灯亮表明停止加热盘工作，此时进入恒温状态，不工作时应切断电源，为确保安全，使用时请接上地线．仪器应保持清洁干燥，严禁溶液进入机内，以免损坏机件防止剧烈震动．向左转|向右转
如下图示
问题是：有没有驱动和罐体分开的，像实验室用的那种，如下图：
后者使用移动配液罐，方便灭菌。
请问各位大神，做注射液中试时所用到磁力搅拌器需要资质吗？
小弟好苦恼啊，求各位老师指点迷津！
版主shitou0307留言:
鼓励
用一个微型电动机驱动一块磁钢转动，利用磁钢转动所产生的旋转磁场带动搅拌器托盘上玻璃容器内的搅拌转子转动，从而达到搅拌溶液的目的。
(2)磁力搅拌器的结构
磁力搅拌器是由电动机、磁钢、搅拌转子、搅拌器托盘、调运装置等部分组成的。金属托盘用丁放置化学电池，此外没有用于夹持测量电极和参比电极的电极架。托盘下安装一块永久磁钢，连接在电动机的转动轴L，电动机的旋转带动永久磁钢旋转，利用其磁力吸引搅拌转于旋转，从而起到搅拌作用。如果磁力搅拌器具有加热功能，则还具有电阻加热丝和云母绝缘层。搅拌转于也称磁于p通常是用玻璃管或塑料管密封的小铁棒(避免与溶液起反应)，搅拌转子随磁钢转动而转动。面板装配有调速旋钮、控温加热开关、指不灯等，以实现接通电源、控制磁钢转动和加热的目的。
参考资料:Hi.baidu/=。www.jingda17.net。DI
裂解液配方：
尿素7M
硫脲2M
CHAPS4%
二次水至20ml
使用前加DTT至65mM，tris至40mM，PMSF至1mM
上样液配方：
尿素8M
CHAPS2%
1%溴酚蓝0.002%
二次水至10ml
使用前加DTT至18mM，IPGbuffer至0.5%
由于都含有尿素，特别难溶解，好像含有尿素的温度不能超过37度，就在磁力搅拌器上一直搅着，发现过了一两个小时还没溶解，怎么回事么？中间还在34度左右水浴锅里水浴过，还是没溶解，溅在烧杯壁上的液体都已经结晶了。
有人碰到这样的问题么，很着急，急求帮助。
1.裂解液和上样液配方有无问题？
2.尿素怎么老不容，有没有什么方法加速其溶解？
