| 产品: | SIAH1 抗体 |
| 货号: | DF6963 |
| 描述: | Rabbit polyclonal antibody to SIAH1 |
| 应用: | WB IHC |
| 反应: | Human, Mouse, Rat |
| 预测: | Pig, Zebrafish, Bovine, Horse, Sheep, Rabbit, Dog, Chicken, Xenopus |
| 分子量: | 31kDa; 31kD(Calculated). |
| 蛋白号: | Q8IUQ4 |
| RRID: | AB_2838919 |
产品描述
*The optimal dilutions should be determined by the end user.
*Tips:
WB: 适用于变性蛋白样本的免疫印迹检测. IHC: 适用于组织样本的石蜡(IHC-p)或冰冻(IHC-f)切片样本的免疫组化/荧光检测. IF/ICC: 适用于细胞样本的荧光检测. ELISA(peptide): 适用于抗原肽的ELISA检测.
引用格式: Affinity Biosciences Cat# DF6963, RRID:AB_2838919.
展开/折叠
E3 ubiquitin-protein ligase SIAH1; FLJ08065; hSIAH1; HUMSIAH; Seven in absentia homolog 1 (Drosophila); Seven in absentia homolog 1; Siah 1; Siah 1a; Siah E3 ubiquitin protein ligase 1; Siah-1; Siah-1a; Siah1; SIAH1_HUMAN; SIAH1A; Ubiquitin ligase SIAH1;
抗原和靶标
Widely expressed at a low level. Down-regulated in advanced hepatocellular carcinomas.
- Q8IUQ4 SIAH1_HUMAN:
- Protein BLAST With
- NCBI/
- ExPASy/
- Uniprot
MSRQTATALPTGTSKCPPSQRVPALTGTTASNNDLASLFECPVCFDYVLPPILQCQSGHLVCSNCRPKLTCCPTCRGPLGSIRNLAMEKVANSVLFPCKYASSGCEITLPHTEKADHEELCEFRPYSCPCPGASCKWQGSLDAVMPHLMHQHKSITTLQGEDIVFLATDINLPGAVDWVMMQSCFGFHFMLVLEKQEKYDGHQQFFAIVQLIGTRKQAENFAYRLELNGHRRRLTWEATPRSIHEGIATAIMNSDCLVFDTSIAQLFAENGNLGINVTISMC
种属预测
score>80的预测可信度较高，可尝试用于WB检测。*预测模型主要基于免疫原序列比对，结果仅作参考，不作为质保凭据。
High(score>80) Medium(80>score>50) Low(score<50) No confidence
翻译修饰 - Q8IUQ4 作为底物
| Site | PTM Type | Enzyme | Source |
|---|---|---|---|
| S2 | Phosphorylation | Uniprot | |
| T13 | Phosphorylation | Uniprot | |
| K15 | Ubiquitination | Uniprot | |
| S19 | Phosphorylation | Q13535 (ATR) , Q13315 (ATM) | Uniprot |
| T70 | Phosphorylation | Uniprot | |
| T74 | Phosphorylation | Uniprot | |
| K89 | Acetylation | Uniprot | |
| Y100 | Phosphorylation | Uniprot | |
| Y126 | Phosphorylation | Uniprot | |
| K216 | Ubiquitination | Uniprot | |
| T235 | Phosphorylation | Uniprot | |
| T239 | Phosphorylation | Uniprot |
研究背景
E3 ubiquitin-protein ligase that mediates ubiquitination and subsequent proteasomal degradation of target proteins. E3 ubiquitin ligases accept ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Mediates E3 ubiquitin ligase activity either through direct binding to substrates or by functioning as the essential RING domain subunit of larger E3 complexes. Triggers the ubiquitin-mediated degradation of many substrates, including proteins involved in transcription regulation (ELL2, MYB, POU2AF1, PML and RBBP8), a cell surface receptor (DCC), the cell-surface receptor-type tyrosine kinase FLT3, the cytoplasmic signal transduction molecules (KLF10/TIEG1 and NUMB), an antiapoptotic protein (BAG1), a microtubule motor protein (KIF22), a protein involved in synaptic vesicle function in neurons (SYP), a structural protein (CTNNB1) and SNCAIP. Confers constitutive instability to HIPK2 through proteasomal degradation. It is thereby involved in many cellular processes such as apoptosis, tumor suppression, cell cycle, axon guidance, transcription regulation, spermatogenesis and TNF-alpha signaling. Has some overlapping function with SIAH2. Induces apoptosis in cooperation with PEG3. Upon nitric oxid (NO) generation that follows apoptotic stimulation, interacts with S-nitrosylated GAPDH, mediating the translocation of GAPDH to the nucleus. GAPDH acts as a stabilizer of SIAH1, facilitating the degradation of nuclear proteins.
Phosphorylated on Ser-19 by ATM and ATR. This phosphorylation disrupts SIAH1 interaction with HIPK2, and subsequent proteasomal degradation of HIPK2.
Cytoplasm. Nucleus.
Note: Predominantly cytoplasmic. Partially nuclear.
Widely expressed at a low level. Down-regulated in advanced hepatocellular carcinomas.
Homodimer. Interacts with group 1 glutamate receptors GRM1 and GRM5. Interacts with DAB1, which may inhibit its activity. Interacts with UBE2E2. Interacts with PEG3. Interacts with GAPDH; leading to stabilize SIAH1 (By similarity). Component of some large E3 complex composed of UBE2D1, SIAH1, CACYBP/SIP, SKP1, APC and TBL1X. Interacts with UBE2I. Interacts with alpha-tubulin. Interacts with PEG10, which may inhibit its activity. Interacts with KHDRBS3. Interacts with SNCAIP and HIPK2. Interacts with Bassoon/BSN and Piccolo/PLCO; these interactions negatively regulate SIAH1 E3 ligase activity (By similarity). Interacts with DCC.
The RING-type zinc finger domain is essential for ubiquitin ligase activity.
The SBD domain (substrate-binding domain) mediates the homodimerization and the interaction with substrate proteins. It is related to the TRAF family.
Belongs to the SINA (Seven in absentia) family.
研究领域
· Cellular Processes > Cell growth and death > p53 signaling pathway. (View pathway)
· Environmental Information Processing > Signal transduction > Wnt signaling pathway. (View pathway)
· Genetic Information Processing > Folding, sorting and degradation > Ubiquitin mediated proteolysis. (View pathway)
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