• Product name

  • Description

    Rabbit polyclonal to hHR23b
  • Host species

  • Tested applications

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

    Reacts with: Mouse, Rat, Human
    Predicted to work with: Rabbit, Horse, Chicken, Guinea pig, Cow, Dog, Pig, Chimpanzee, Rhesus monkey, Gorilla, Tilapia, Orangutan, Platypus
  • Immunogen

    Synthetic peptide, corresponding to a region within amino acids 359-409 of Human hHR23b (NP_002865.1)

  • Positive control

    • HeLa whole cell lysate (ab150035) NIH3T3 whole cell lysate


  • Form

  • Storage instructions

    Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
  • Storage buffer

    Preservative: 0.09% Sodium azide
    Constituents: 0.1% BSA, Tris buffered saline
  • Concentration information loading...
  • Purity

    Immunogen affinity purified
  • Clonality

  • Isotype

  • Research areas


Our Abpromise guarantee covers the use of ab86781 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 - 1/10000. Predicted molecular weight: 43 kDa.
IP Use at 10 µg/mg of lysate.
IHC-P 1/500 - 1/2000. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.


  • 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


  • All lanes : Anti-hHR23b antibody (ab86781) at 0.04 µg/ml

    Lane 1 : HeLa whole cell lysate at 50 µg
    Lane 2 : HeLa whole cell lysate at 15 µg
    Lane 3 : HeLa whole cell lysate at 5 µg
    Lane 4 : NIH3T3 whole cell lysate at 50 µg

    Developed using the ECL technique.

    Predicted band size: 43 kDa

    Exposure time: 30 seconds
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human breast carcinoma tissue labelling hHR23b with ab86781 at 1/1000 (0.2 µg/ml). Detection: DAB.
  • 1 mg HeLa whole cell lysate was immunoprecipitated with 10 µg ab86781 (lane 1) or control IgG (lane 2). 20% of the immunoprecipitate was subjected to Western blotting and labelled with ab86781 at 0.4 µg/ml. Bands were detected by chemiluminescence with an exposure time of 3 seconds.


This product has been referenced in:

  • Zhang YJ  et al. C9ORF72 poly(GA) aggregates sequester and impair HR23 and nucleocytoplasmic transport proteins. Nat Neurosci 19:668-677 (2016). Read more (PubMed: 26998601) »
  • Dantas TJ  et al. Calcium-binding capacity of centrin2 is required for linear POC5 assembly but not for nucleotide excision repair. PLoS One 8:e68487 (2013). WB . Read more (PubMed: 23844208) »
See all 2 Publications for this product

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