Overview

  • Product name

    Anti-DDB2 antibody [EPR9811] (HRP)
    See all DDB2 primary antibodies
  • Description

    Rabbit monoclonal [EPR9811] to DDB2 (HRP)
  • Host species

    Rabbit
  • Conjugation

    HRP
  • Tested applications

    Suitable for: WB, IHC-Pmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic peptide (the amino acid sequence is considered to be commercially sensitive) within Human DDB2 aa 350 to the C-terminus. The exact sequence is proprietary.
    Database link: Q92466

  • Positive control

    • WB: HeLa cell lysate. IHC: Human normal skin (paraffin embedded tissue).
  • General notes

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    This product is a recombinant rabbit monoclonal antibody.

Properties

  • Form

    Liquid
  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Stable for 12 months at -20°C. Store In the Dark.
  • Storage buffer

    pH: 7.4
    Preservative: 0.1% Proclin
    Constituents: PBS, 1% BSA, 30% Glycerol
  • Concentration information loading...
  • Purity

    Protein A purified
  • Clonality

    Monoclonal
  • Clone number

    EPR9811
  • Isotype

    IgG
  • Research areas

Applications

Our Abpromise guarantee covers the use of ab205484 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 1/2000. Detects a band of approximately 45 kDa (predicted molecular weight: 48 kDa).
IHC-P 1/100. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

Target

  • Function

    Required for DNA repair. Binds to DDB1 to form the UV-damaged DNA-binding protein complex (the UV-DDB complex). The UV-DDB complex may recognize UV-induced DNA damage and recruit proteins of the nucleotide excision repair pathway (the NER pathway) to initiate DNA repair. The UV-DDB complex preferentially binds to cyclobutane pyrimidine dimers (CPD), 6-4 photoproducts (6-4 PP), apurinic sites and short mismatches. Also appears to function as the substrate recognition module for the DCX (DDB1-CUL4-X-box) E3 ubiquitin-protein ligase complex DDB1-CUL4-ROC1 (also known as CUL4-DDB-ROC1 and CUL4-DDB-RBX1). The DDB1-CUL4-ROC1 complex may ubiquitinate histone H2A, histone H3 and histone H4 at sites of UV-induced DNA damage. The ubiquitination of histones may facilitate their removal from the nucleosome and promote subsequent DNA repair. The DDB1-CUL4-ROC1 complex also ubiquitinates XPC, which may enhance DNA-binding by XPC and promote NER. Isoform D1 and isoform D2 inhibit UV-damaged DNA repair.
  • Tissue specificity

    Ubiquitously expressed; with highest levels in corneal endothelium and lowest levels in brain. Isoform D1 is highly expressed in brain and heart. Isoform D2, isoform D3 and isoform D4 are weakly expressed.
  • Pathway

    Protein modification; protein ubiquitination.
  • Involvement in disease

    Defects in DDB2 are a cause of xeroderma pigmentosum complementation group E (XP-E) [MIM:278740]; also known as xeroderma pigmentosum V (XP5). XP-E is a rare human autosomal recessive disease characterized by solar sensitivity, high predisposition for developing cancers on areas exposed to sunlight and, in some cases, neurological abnormalities.
  • Sequence similarities

    Belongs to the WD repeat DDB2/WDR76 family.
    Contains 5 WD repeats.
  • Domain

    The DWD box is required for interaction with DDB1.
  • Post-translational
    modifications

    Phosphorylation by ABL1 negatively regulate UV-DDB activity.
    Ubiquitinated by CUL4A in response to UV irradiation. Ubiquitination appears to both impair DNA-binding and promotes ubiquitin-dependent proteolysis. Degradation of DDB2 at sites of DNA damage may be a prerequisite for their recognition by XPC and subsequent repair. CUL4A-mediated degradation appears to be promoted by ABL1.
  • Cellular localization

    Nucleus. Accumulates at sites of DNA damage following UV irradiation.
  • Information by UniProt
  • Database links

  • Alternative names

    • damage-specific DNA binding protein 2 antibody
    • Damage-specific DNA-binding protein 2 antibody
    • DDB p48 subunit antibody
    • Ddb2 antibody
    • DDB2_HUMAN antibody
    • DDBb antibody
    • DNA damage-binding protein 2 antibody
    • UV-damaged DNA-binding protein 2 antibody
    • UV-DDB 2 antibody
    • Xeroderma pigmentosum group E protei antibody
    see all

Images

  • Anti-DDB2 antibody [EPR9811] (HRP) (ab205484) at 1/2000 dilution + HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate at 10 µg

    Developed using the ECL technique.

    Performed under reducing conditions.

    Predicted band size: 48 kDa
    Observed band size: 45 kDa
    why is the actual band size different from the predicted?


    Exposure time: 1 minute


    This blot was produced using a 4-12% Bis-tris gel under the MOPS buffer system. The gel was run at 200V for 50 minutes before being transferred onto a Nitrocellulose membrane at 30V for 70 minutes. The membrane was then blocked for an hour using 3% milk before being incubated with ab205484 overnight at 4°C. Antibody binding was visualised using ECL development solution ab133406.

  • IHC image of DDB2 staining in a section of formalin-fixed paraffin-embedded normal human skin*, performed on a Leica BONDTM. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20mins. The section was then incubated with ab205484, 1/100 dilution, for 15 mins at room temperature. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX. The inset negative control image is taken from an identical assay without primary antibody.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

    *Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre

References

ab205484 has not yet been referenced specifically in any publications.

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