Overview

Properties

Applications

Our Abpromise guarantee covers the use of ab31234 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 1 µg/ml. Detects a band of approximately 35 kDa (predicted molecular weight: 35 kDa).

Target

  • 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 (POU2AF1, PML, NCOR1), a cell surface receptor (DCC), an antiapoptotic protein (BAG1), and a protein involved in synaptic vesicle function in neurons (SYP). It is thereby involved in apoptosis, tumor suppression, cell cycle, transcription and signaling processes. Has some overlapping function with SIAH1. Triggers the ubiquitin-mediated degradation of TRAF2, whereas SIAH1 can not. Promotes monoubiquitination of SNCA.
  • Tissue specificityWidely expressed at low level.
  • 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.
  • Cellular localizationCytoplasm. Nucleus. Predominantly cytoplasmic (Probable). Partially nuclear.
  • Information by UniProt
  • Database links
  • Alternative names
    • E3 ubiquitin-protein ligase Siah2 antibody
    • hSiah2 antibody
    • Seven in absentia homolog 2 antibody
    • Siah E3 ubiquitin protein ligase 2 antibody
    • Siah-2 antibody
    • siah2 antibody
    • SIAH2_HUMAN antibody
    • Ubiquitin Ligase Siah2 antibody
    see all

Anti-Siah2 antibody images

  • Anti-Siah2 antibody (ab31234) at 1 µg/ml + MCF7 (Human breast adenocarcinoma cell line) Whole Cell Lysate at 10 µg

    Secondary
    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    Developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 35 kDa
    Observed band size : 35 kDa
    Additional bands at : 49 kDa,65 kDa. We are unsure as to the identity of these extra bands.

    Exposure time : 20 minutes

References for Anti-Siah2 antibody (ab31234)

ab31234 has not yet been referenced specifically in any publications.

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