| 来源 | 用途 | 交叉反应性 | 理论分子量 | 实际分子量 |
| Rabbit | WB, IF, IHC | H, M, R | 20/35/39/41kDa | 50kDa |
WB, Western blot; IP, Immunoprecipitation; IF, Immunofluorescence; IHC, Immunohistochemistry; ICC, Immunocytochemistry; FC, Flow Cytometry; ChIP, Chromatin Immunoprecipitation Assay; ChIP-seq, ChIP-sequencing.
H, Human; M, Mouse; R, Rat; C, Chicken; Cw, Cow; Dg, Dog; Gp, Guinea pig; Hm, Hamster; Hr, Horse; Mk, Monkey; Pg, Pig; Rb, Rabbit; S, Sheep; Z, Zebrafish; All, all species expected.
配套提供了Western一抗稀释液，可以用于Western检测或其它适当用途时的一抗稀释。
建议抗体使用时的稀释比例如下(实际使用时需根据抗原水平的高低作适当调整)：
| WB | IP | IF | IHC | ICC | FC | ChIP | ChIP-seq |
| 1:500-1:2000 | - | 1:50-1:200 | 1:50-1:200 | 1:50-1:200 | - | - | - |
抗体详细信息如下::
| About this Antibody | |
| Name | Ataxin 3 Rabbit Polyclonal Antibody |
| Category | Rabbit Polyclonal Antibody (pAb); Primary antibody |
| Isotype | IgG |
| Purification method | Affinity purification |
| Positive samples | MCF7, SW480, Jurkat, A-549, DU145 |
| Cellular location | Nucleus matrix |
| Customer validation | - |
| About the Immunogen | |
| Immunogen | Recombinant fusion protein of human Ataxin 3 (NP_004984.2). |
| Sequence | MESIFHEKQEGSLCAQHCLNNLLQGEYFSPVELSSIAHQLDEEERMRMAEGGVTSEDYRTFLQQPSGNMDDSGFFSIQVISNALKVWGLELILFNSPEYQRLRIDPINERSFICNYKEHWFTVRKLGKQWFNLNSLLTGPELISDTYLALFLAQLQQEGYSIFVVKGDLPDCEADQLLQMIRVQQMHRPKLIGEELAQLKEQRVHKTDLERVLEANDGSGMLDEDEEDLQRALALSRQEIDMEDEEADLRRAIQLSMQGSSRNISQDMTQTSGTNLTSEELRKRREAYFEKQQQKQQQQQQQQQQGDLSGQSSHPCERPATSSGALGSDLGDAMSEEDMLQAAVTMSLETVRNDLKTEGKK |
| Gene ID | 4287 |
| Swiss Prot | P54252 |
| Synonyms | ATXN3; AT3; ATX3; JOS; MJD; MJD1; SCA3; ataxin-3 |
| Category | Ubiquitin/Proteasome |
| Background | Ataxin-3, also known as Machado-Joseph Disease (MJD) Protein 1 and Spinocerebellar Ataxia Type 3, is a 364 amino acid (aa), ubiquitously expressed cytoplasmic and nuclear protein with a predicted molecular weight of 42 kDa. Ataxin-3 functions as a deubiquitinating enzyme. Human Ataxin-3 shares 87% and 86% aa sequence identity with mouse and rat Ataxin-3, respectively. Full-length Ataxin-3 contains an N-terminal Josephin domain, two Ubiquitin interacting motifs, and a variable C-terminus consisting of a polyglutamine stretch and tail. As a deubiquitinating enzyme, Ataxin-3 plays a critical role in affecting the ubiquitination status of proteins for quality control and other cellular pathways. In turn, the ubiquitination of Ataxin-3 is was shown to enhance its capacity to cleave Ubiquitin chains. By opposing the actions of the Ubiquitin-conjugating (E2) enzyme UBE2W, Ataxin-3 is believed to control the activity of the Ubiquitin ligase (E3) C-terminus of Hsp70 Interacting Protein (CHIP). CHIP binds to protein chaperones and represents an important molecular link between the chaperone and Ubiquitin-proteasome system. Expression of murine Ataxin-3 is thought to be important for myogenesis, an effect that is dependent on the regulation of Integrin alpha 5 levels. Mutations in the ATXN3 gene are the cause of MJD, also known as spinocerebellar ataxia 3, an autosomal dominant neurodegenerative disorder characterized by nuclear aggregation of Ataxin-3 molecules featuring an expanded polyglutamine tract. |
包装清单：
| 产品编号 | 产品名称 | 包装 |
| AF6237 | Ataxin 3 Rabbit Polyclonal Antibody | 50μl |
| AZ050 | Western一抗稀释液 | 50ml |
| — | 说明书 | 1份 |
保存条件：
Ataxin 3 Rabbit Polyclonal Antibody -20ºC保存，Western一抗稀释液-20ºC或4ºC保存，一年有效。Western一抗稀释液优先推荐4ºC保存，长期不使用可以考虑-20ºC保存，但冻融可能会导致出现轻微的浑浊和少量不溶物。
注意事项：
如果本抗体用于Western blot (WB)、免疫荧光(IF)、免疫细胞化学(ICC)等实验，请注意回收使用过的稀释抗体。回收的抗体通常至少可以重复使用5-10次。稀释后的抗体，包括已经使用过的稀释抗体，请4℃保存。
回收后重复使用的抗体，使用方法同新鲜稀释的抗体。如果在重复使用过程中发现抗体出现轻微混浊现象，可以10,000g离心1-3分钟，取上清用于后续检测。如果回收的抗体出现明显的絮状物或长霉长菌等情况，则可以考虑废弃该抗体。
提供的Western一抗稀释液也可以用于免疫荧光(IF)、免疫组化(IHC)、免疫细胞化学(ICC)等适当用途。如果希望获得最佳的检测效果，请考虑使用上述检测专用的一抗稀释液。
本产品仅限于专业人员的科学研究用，不得用于临床诊断或治疗，不得用于食品或药品，不得存放于普通住宅内。
为了您的安全和健康，请穿实验服并戴一次性手套操作。
使用说明：
请根据抗体的实际用途选择相应的使用方法。
1. Western检测：
a. 按照推荐的稀释比例用碧云天提供的Western一抗稀释液稀释抗体。
b. 把经过封闭的蛋白膜与稀释好的一抗4℃缓慢摇动过夜或室温缓慢摇动2小时，确保稀释的抗体至少能在摇动的瞬间覆盖蛋白膜。
c. 回收稀释的一抗，4℃保存以备下次继续使用。
d. 按照Western的实验步骤进行后续的洗涤、二抗孵育、洗涤和检测等操作。具体操作可以参考如下网页：
http://www.beyotime.com/western.htm
2. 免疫染色：
可以使用碧云天生产的免疫染色一抗稀释液(P0103)稀释抗体，使用后注意回收稀释好的一抗，具体操作可以参考如下网页：http://www.beyotime.com/support/immunol-staining.htm
3. 其它实验操作请自行参考适当的protocol进行。
4. 代表性图片：
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| Fig. 1. Western blot analysis of extracts of various cell lines, using Ataxin 3 antibody at 1:1000 dilution. Secondary antibody: HRP-labeled Goat Anti-Rabbit IgG(H+L) (A0208) at 1:1000 dilution. Lysates/proteins: 25µg per lane. Blocking buffer: QuickBlock™ Blocking Buffer (P0231). | Fig. 2. Immunofluorescence analysis of HeLa cells using Ataxin 3 antibody. |
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| Fig. 3. Confocal immunofluorescence analysis of U-2 OS cells using Ataxin 3 Polyclonal Antibody at dilution of 1:100. Blue: DAPI for nuclear staining. | |
