• Product name
    Anti-hHR23b antibody [2857D7a]
    See all hHR23b primary antibodies
  • Description
    Mouse monoclonal [2857D7a] to hHR23b
  • Host species
  • Tested applications
    Suitable for: IHC-P, WB, Dot blotmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Recombinant fragment derived from internal sequence of human hHR23b.

  • Positive control
    • Recombinant human hHR23b. Whole cell lysate from human HeLa cells.


  • Form
  • Storage instructions
    Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
  • Storage buffer
    Preservative: 0.05% Sodium Azide
    Constituents: 1% BSA, PBS, pH 7.4
  • Concentration information loading...
  • Purity
    Protein G purified
  • Purification notes
    ab70602 was purified using protein G column chromatography from culture supernatant of hybridoma cultured in a medium containing bovine IgG-depleted (approximately 95%) fetal bovine serum and filtered through a 0.22µm membrane.
  • Clonality
  • Clone number
  • Isotype
  • Research areas


Our Abpromise guarantee covers the use of ab70602 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
IHC-P Use a concentration of 5 µg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
WB Use a concentration of 0.2 - 2 µg/ml. Detects a band of approximately 54 kDa (predicted molecular weight: 43 kDa).
Dot blot Use at an assay dependent concentration.


  • Function
    Multiubiquitin chain receptor involved in modulation of proteasomal degradation. Binds to polyubiquitin chains. Proposed to be capable to bind simultaneously to the 26S proteasome and to polyubiquitinated substrates and to deliver ubiquitinated proteins to the proteasome. May play a role in endoplasmatic reticulum-associated degradation (ERAD) of misfolded glycoproteins by association with PNGase and delivering deglycosylated proteins to the proteasome.
    Involved in global genome nucleotide excision repair (GG-NER) by acting as component of the XPC complex. Cooperatively with CETN2 appears to stabilize XPC. May protect XPC from proteasomal degradation.
    The XPC complex is proposed to represent the first factor bound at the sites of DNA damage and together with other core recognition factors, XPA, RPA and the TFIIH complex, is part of the pre-incision (or initial recognition) complex. The XPC complex recognizes a wide spectrum of damaged DNA characterized by distortions of the DNA helix such as single-stranded loops, mismatched bubbles or single stranded overhangs. The orientation of XPC complex binding appears to be crucial for inducing a productive NER. XPC complex is proposed to recognize and to interact with unpaired bases on the undamaged DNA strand which is followed by recruitment of the TFIIH complex and subsequent scanning for lesions in the opposite strand in a 5'-to-3' direction by the NER machinery. Cyclobutane pyrimidine dimers (CPDs) which are formed upon UV-induced DNA damage esacpe detection by the XPC complex due to a low degree of structural perurbation. Instead they are detected by the UV-DDB complex which in turn recruits and cooperates with the XPC complex in the respective DNA repair. In vitro, the XPC:RAD23B dimer is sufficient to initiate NER; it preferentially binds to cisplatin and UV-damaged double-stranded DNA and also binds to a variety of chemically and structurally diverse DNA adducts. XPC:RAD23B contacts DNA both 5' and 3' of a cisplatin lesion with a preference for the 5' side. XPC:RAD23B induces a bend in DNA upon binding. XPC:RAD23B stimulates the activity of DNA glycosylases TDG and SMUG1.
  • Sequence similarities
    Belongs to the RAD23 family.
    Contains 1 STI1 domain.
    Contains 2 UBA domains.
    Contains 1 ubiquitin-like domain.
  • Domain
    The ubiquitin-like domain mediates interaction with ATXN3.
  • Cellular localization
    Nucleus. Cytoplasm. The intracellular distribution is cell cycle dependent. Localized to the nucleus and the cytoplasm during G1 phase. Nuclear levels decrease during S-phase; upon entering mitosis, relocalizes in the cytoplasm without association with chromatin.
  • Information by UniProt
  • Database links
  • Alternative names
    • hHR 23b antibody
    • hHR23B antibody
    • HR 23B antibody
    • HR23B antibody
    • mHR 23B antibody
    • mHR23B antibody
    • p58 antibody
    • RAD 23B antibody
    • RAD23 (S. cerevisiae) homolog B antibody
    • RAD23 homolog B (S. cerevisiae) antibody
    • RAD23 homolog B antibody
    • RAD23 yeast homolog of B antibody
    • Rad23b antibody
    • RD23B_HUMAN antibody
    • UV excision repair protein RAD23 homolog B antibody
    • XP C repair complementing complex 58 kDa antibody
    • XP C repair complementing complex 58 kDa protein antibody
    • XP C repair complementing protein antibody
    • XP-C repair-complementing complex 58 kDa protein antibody
    • XPC repair complementing complex 58 kDa antibody
    • XPC repair complementing complex 58 kDa protein antibody
    • XPC repair complementing protein antibody
    see all


  • Anti-hHR23b antibody [2857D7a] (ab70602) at 0.2 µg/ml + Whole cell lysate from HeLa cells at 25 µg

    Predicted band size: 43 kDa

  • Anti-hHR23b antibody [2857D7a] (ab70602) at 0.2 µg/ml + immunising recombinant protein

    Predicted band size: 43 kDa
    Observed band size: 44 kDa (why is the actual band size different from the predicted?)

  • IHC image of ab70602 staining in human normal cervical carcinoma formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab70602, 5µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

    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.


This product has been referenced in:
  • Qiu X  et al. Effects of lycopene on protein expression in human primary prostatic epithelial cells. Cancer Prev Res (Phila) 6:419-27 (2013). WB ; Human . Read more (PubMed: 23483004) »

See 1 Publication for this product

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