Western Blot: 1/500 - 1/1000. Immunhistochemistry: 1/50 - 1/200. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
hSiah2 antibody, Xsiah-2 antibody, siah2-A antibody, xsiah2 antibody, AA415433 antibody, Sinh2 antibody, siah E3 ubiquitin protein ligase 2 antibody, siah E3 ubiquitin protein ligase 2 L homeolog antibody, seven in absentia 2 antibody, SIAH2 antibody, siah2.L antibody, Siah2 antibody
背景
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: E3 ubiquitin-protein ligase SIAH2, Seven in absentia homolog 2, Siah-2