Product nameAnti-SIAH1 antibody
See all SIAH1 primary antibodies
DescriptionGoat polyclonal to SIAH1
Tested applicationsSuitable for: IHC-P, WB, IP, ELISAmore details
Species reactivityReacts with: Mouse, Rat, Human
Predicted to work with: Cow, Dog
- Human liver lysate.
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Storage bufferpH: 7.30
Preservative: 0.02% Sodium azide
Constituents: 0.05% Tris, 0.5% BSA
Concentration information loading...
PurityImmunogen affinity purified
Purification notesPurified from goat serum by ammonium sulphate precipitation followed by antigen affinity chromatography using the immunizing peptide.
Immunizing Peptide (Blocking)
Our Abpromise guarantee covers the use of ab2237 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|IHC-P||1/50. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol. PubMed: 17189520
1:300 donkey anti-goat was used for secondary antibody.
|WB||Use a concentration of 1 - 3 µg/ml. Detects a band of approximately 28, 30 kDa (predicted molecular weight: 31, 35 kDa).Can be blocked with Human SIAH1 peptide (ab22876).|
|IP||Use at an assay dependent concentration.|
|ELISA||Use at an assay dependent concentration.|
FunctionE3 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 (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.
Tissue specificityWidely expressed at a low level. Down-regulated in advanced hepatocellular carcinomas.
PathwayProtein modification; protein ubiquitination.
Sequence similaritiesBelongs to the SINA (Seven in absentia) family.
Contains 1 RING-type zinc finger.
Contains 1 SIAH-type zinc finger.
DomainThe 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.
modificationsPhosphorylated on Ser-19 by ATM and ATR. This phosphorylation disrupts SIAH1 interaction with HIPK2, and subsequent proteasomal degradation of HIPK2.
Cellular localizationCytoplasm. Nucleus. Predominantly cytoplasmic. Partially nuclear.
- Information by UniProt
- E3 ubiquitin-protein ligase SIAH1 antibody
- FLJ08065 antibody
- hSIAH1 antibody
All lanes : Anti-SIAH1 antibody (ab2237) at 1 µg/ml
Lane 1 : Mouse brain lysate
Lane 2 : Rat brain lysate
Lane 3 : Mouse liver lysate
Lane 4 : Rat liver lysate
Lysates/proteins at 35 µg per lane.
Predicted band size: 31, 35 kDa
Anti-SIAH1 antibody (ab2237) at 1 µg/ml + Human liver lysate at 35 µg
Predicted band size: 31, 35 kDa
This product has been referenced in:
- Wu W et al. Tp53 Mutation Inhibits Ubiquitination and Degradation of WISP1 via Down-Regulation of Siah1 in Pancreatic Carcinogenesis. Front Pharmacol 9:857 (2018). Read more (PubMed: 30123132) »
- Van der Hoek KH et al. Viperin is an important host restriction factor in control of Zika virus infection. Sci Rep 7:4475 (2017). Read more (PubMed: 28667332) »