STUB1 (基因名), E3 ubiquitin-protein ligase CHIP (蛋白名), chip_human.
产品名称:
Human STUB1/ E3 ubiquitin-protein ligase CHIP Recombinant Protein
E3泛素蛋白连接酶CHIP
货号:
R2375h
商标:
EIAab®
监管等级:
别名:
Antigen NY-CO-7, CLL-associated antigen KW-8, Carboxy terminus of Hsp70-interacting protein, RING-type E3 ubiquitin transferase CHIP, STIP1 homology and U box-containing protein 1, PP1131, CHIP
序列号:
Q9UNE7
来源:
E.coli
种属:
Human
标签:
His
序列:
1-240aa
预估分子量:
26.4 kDa (monomer)
纯度:
Greater than 95% by SDS-PAGE
浓度:
Reconstitution Dependent
形态:
Liquid
内毒素水平:
Please contact protein@eiaab.com The technician for more information.
应用:
存储缓冲液:
50mM NaH2PO4, 500mM NaCl Buffer with 500mM Imidazole, 10%glycerol(PH8.0)
存储:
Store at -20°C. (Avoid repeated freezing and thawing.)
研究领域:
Cancer
R&D 技术数据
更多信息，请参阅手册，或联系我们的技术支持: tech@eiaab.com.
基因位点
STUB1 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
通用注释
亚单元:
Homodimer (By similarity). Interacts with BAG2 (PubMed:16169850). Interacts with E2 ubiquitin conjugating enzymes UBE2D1, UBE2D2 and UBE2D3 (PubMed:11557750). Detected in a ternary complex containing STUB1, HSPA1A and HSPBP1 (PubMed:15215316). Interacts with MKKS (PubMed:18094050). Interacts with DYX1C1 (PubMed:19423554). Interacts with POLB (PubMed:19713937). Interacts (when monoubiquitinated) with ATXN3. Interacts with UBE2W. Interacts (via the U-box domain) with the UBE2V2-UBE2N heterodimer; the complex has a specific 'Lys-63'-linked polyubiquitination activity (By similarity). Interacts with DNAJB6 (PubMed:22366786). Interacts with FOXP3 (PubMed:23973223). Interacts with FLCN (PubMed:27353360). Interacts with HSP90AA1 (PubMed:27353360, PubMed:24613385). Interacts with HSP90 (PubMed:11146632). Interacts with UBE2N and UBE2V1 (PubMed:16307917). Interacts (via TPR repeats) with the C-terminal domain of HSPA1A (PubMed:10330192). Interacts with the non-acetylated form of HSPA1A and HSPA1B (PubMed:27708256). Interacts (via TPR repeats) with the C-terminal domain of HSPA8 (PubMed:10330192, PubMed:11557750, PubMed:23990462, PubMed:27708256). Interacts with SMAD3 and HSP90AB1 (PubMed:24613385).
功能:
E3 ubiquitin-protein ligase which targets misfolded chaperone substrates towards proteasomal degradation. Collaborates with ATXN3 in the degradation of misfolded chaperone substrates: ATXN3 restricting the length of ubiquitin chain attached to STUB1/CHIP substrates and preventing further chain extension. Ubiquitinates NOS1 in concert with Hsp70 and Hsp40. Modulates the activity of several chaperone complexes, including Hsp70, Hsc70 and Hsp90. Mediates transfer of non-canonical short ubiquitin chains to HSPA8 that have no effect on HSPA8 degradation. Mediates polyubiquitination of DNA polymerase beta (POLB) at 'Lys-41', 'Lys-61' and 'Lys-81', thereby playing a role in base-excision repair: catalyzes polyubiquitination by amplifying the HUWE1/ARF-BP1-dependent monoubiquitination and leading to POLB-degradation by the proteasome. Mediates polyubiquitination of CYP3A4. Ubiquitinates EPHA2 and may regulate the receptor stability and activity through proteasomal degradation. Acts as a co-chaperone for HSPA1A and HSPA1B chaperone proteins and promotes ubiquitin-mediated protein degradation (PubMed:27708256). Negatively regulates the suppressive function of regulatory T-cells (Treg) during inflammation by mediating the ubiquitination and degradation of FOXP3 in a HSPA1A/B-dependent manner (PubMed:23973223). Negatively regulates TGF-beta signaling by modulating the basal level of SMAD3 via ubiquitin-mediated degradation (PubMed:24613385).
亚细胞位置:
Cytoplasm
Nucleus
Translocates to the nucleus in response to inflammatory signals in regulatory T-cells (Treg).
数据库链接
验证序列:
该产品尚未在任何出版物中被引用。
[1].
"Identification of CHIP, a novel tetratricopeptide repeat-containing protein that interacts with heat shock proteins and negatively regulates chaperone functions."
[2].
"MKKS is a centrosome-shuttling protein degraded by disease-causing mutations via CHIP-mediated ubiquitination."
[3].
"Chaperoned ubiquitylation--crystal structures of the CHIP U box E3 ubiquitin ligase and a CHIP-Ubc13-Uev1a complex."
[4].
"Ubiquitylation of neuronal nitric-oxide synthase by CHIP, a chaperone-dependent E3 ligase."
[5].
"Characterization of human colon cancer antigens recognized by autologous antibodies."
[6].
"PELI1 Selectively Targets Kinase-Active RIP3 for Ubiquitylation-Dependent Proteasomal Degradation."
[7].
"The FNIP co-chaperones decelerate the Hsp90 chaperone cycle and enhance drug binding."
[8].
"ARD1-mediated Hsp70 acetylation balances stress-induced protein refolding and degradation."
[9].
"Ataxia and hypogonadism caused by the loss of ubiquitin ligase activity of the U box protein CHIP."
[1].
人E3泛素蛋白连接酶CHIP(STUB1)重组蛋白是否是无菌的？
蛋白试剂瓶和蛋白保存液是经过高压灭菌的，但也不能保证蛋白是完全无菌的。如果要求蛋白是无菌的，可以用0.2微米的滤器对蛋白进行过滤。
[2].
人E3泛素蛋白连接酶CHIP(STUB1)重组蛋白的保存缓冲液是什么？
纯化后的蛋白保存在PBS（58mM Na2HPO4, 17mM NaH2PO4, 68mM NaCl, pH7.4）里，并往里面加入500mM咪唑和10%甘油。
[3].
怎样确定人E3泛素蛋白连接酶CHIP(STUB1)重组蛋白的浓度？
蛋白浓度的确定没有一个统一的标准，这主要取决于蛋白的氨基酸序列。伊艾博是根据不同测试的组合来测定蛋白浓度。考马斯亮蓝法、BCA法、氨基酸序列和氨基酸全序列分析法等都用来测定蛋白浓度。
[4].
人E3泛素蛋白连接酶CHIP(STUB1)重组蛋白蛋白保存条件是怎样的？
蛋白应保存在 -20℃或 -80℃条件下，为了避免反复冻融，可以将蛋白分装成小份保存。
[5].
人E3泛素蛋白连接酶CHIP(STUB1)重组蛋白是否可以用于活体实验？
重组蛋白没有用于任何的活体实验，因此蛋白的活性和半衰期是不确定的。
[6].
人E3泛素蛋白连接酶CHIP(STUB1)重组蛋白的保质期是多久？
在适当的保存条件下，从购买之日起蛋白可以稳定保存6-12个月。适当的保存条件是:蛋白保存在-20°C o或 -80℃，保证蛋白的保存浓度高于0.1mg/ml，限制蛋白反复冻融的次数。我们公司常规的质量检测保证所有产品在销售时都有可接受的生物活性。但是我们不能控制终端用户蛋白的保存条件。如果产品在有效期内出现问题，请联系我们的技术支持。
[7].
你们蛋白和抗体的报价是怎么样的？
我们将根据你需要的蛋白和抗体的大小进行报价。
[8].
人E3泛素蛋白连接酶CHIP(STUB1)重组蛋白是否能够提供蛋白片段？
我们现有的人的蛋白的序列可以有很多。你可以选择你感兴趣的靶向部分，我们将会按您的需求提供蛋白和抗体。
[9].
人E3泛素蛋白连接酶CHIP(STUB1)重组蛋白的货期或发货时间一般是多长？
具体指标的货期需要确定。最快一周，最长可能一个月。
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