SIAH2 Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	IHC, WB
Recommend Dilution	Western blot: 1/500 - 1/1000. Immunhistochemistry on paraffin sections: 1/50 - 1/200.
Reactivity	Human, Mouse, Rat
Host	Rabbit
Clonality	Polyclonal
Specificity	This antibody detects endogenous levels of Siah-2 protein. (region surrounding Glu266)
Formulation	Phosphate buffered saline (PBS), pH 7.2. State: Aff - Purified State: Liquid purified Ig fraction Preservative: 0.05% sodium azide
Concentration	1.0 mg/ml
Purification	Affinity chromatography (> 95% (by SDS-PAGE)
Conjugation	Unconjugated
Storage Condition	Store undiluted at 2-8°C for one month or (in aliquots) at -20°C for longer. Avoid repeated freezing and thawing.
Predicted Protein Size	~ 38 kDa
Gene Name	siah E3 ubiquitin protein ligase 2
Database Link	Entrez Gene 20439 MouseEntrez Gene 140593 RatEntrez Gene 6478 Human UniProt ID O43255
Background	SIAH-2 (seven in absentia homolog 2) is an E3 ligase that catalyzes ubiquitination and proteasome-mediated degradation of protein substrates. SIAH-2 encodes a 324 amino acid protein that shares 77% identity with human SIAH-1 and 68% identity with the Drosophila sina (seven in absentia) gene, on which development of the Drosophila R7 photoreceptor is dependent. SIAH-2 targets TRAF2 (which regulates cell responses to stress and cytokines through the regulation of key stress-signaling cascades) for degradation under stress conditions such as hypoxia. It targets HIF-1alpha prolyl hydroxylase 3 (PHD3) for degradation upon exposure to hypoxic conditions, which coincides with an increase in SIAH-2 transcription. SIAH-2 can decrease TNF-alpha-dependent induction of JNK activity and transcriptional activation of NFkappaB. SIAH-2 null mice subjected to hypoxia display an impaired respiratory response and reduced levels of hemoglobin.
Synonyms	Siah-2
Reference Data
Protein Families	Druggable Genome, Transcription Factors

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