Product Details

Uniprot No.

Target Names

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

Species Reactivity

Human

Immunogen

Recombinant Human RAD23B protein

Immunogen Species

Homo sapiens (Human)

Conjugate

Non-conjugated

Clonality

Monoclonal

Isotype

hIgG1

Clone No.

16H2

Purification Method

Affinity-chromatography

Concentration

It differs from different batches. Please contact us to confirm it.

Buffer

Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, PH 7.4

Form

Liquid

Tested Applications

ELISA, IF, FC

Recommended Dilution

Application	Recommended Dilution
IF	1:50-1:200
FC	1:50-1:200

Protocols

ELISA Protocol
Immunofluorescence (IF) Protocol
Flow Cytometry (FC) Protocol

Troubleshooting and FAQs

Antibody FAQs

Storage

Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.

Lead Time

Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

Description

RAD23B plays a central role in nucleotide excision repair and protein quality control, functioning as a key component of the XPC repair complex that recognizes and processes DNA damage caused by UV radiation and environmental mutagens. Beyond its DNA repair functions, RAD23B serves as a shuttle factor that delivers ubiquitinated substrates to the proteasome, positioning it at the intersection of genome maintenance and protein homeostasis pathways that are frequently dysregulated in cancer and neurodegenerative diseases.

This recombinant monoclonal antibody against human RAD23B offers the reproducibility and consistency that demanding research applications require. Generated through recombinant technology with a defined sequence, this clone (16H2) eliminates the lot-to-lot variability inherent in traditional hybridoma-derived antibodies, ensuring your experimental conditions remain stable across long-term studies. The human IgG1 isotype format, produced against recombinant human RAD23B protein and purified by affinity chromatography, delivers reliable target recognition for quantitative analyses.

Validation studies demonstrate strong performance in both immunofluorescence and flow cytometry applications using HeLa cells. Immunofluorescence staining at dilutions of 1:50–1:200 reveals clear nuclear localization patterns consistent with RAD23B's known biological functions, while flow cytometry analysis shows distinct positive population shifts compared to isotype controls, confirming specific target detection in fixed and permeabilized cells.

This antibody supports investigations into DNA damage response mechanisms, ubiquitin-proteasome pathway regulation, and epigenetic signaling networks. Researchers studying nucleotide excision repair deficiencies, xeroderma pigmentosum complementation groups, or proteasomal degradation pathways will find this reagent well-suited for cellular localization studies and quantitative population analyses in human cell models.

Usage

For Research Use Only. Not for use in diagnostic or therapeutic procedures.

Target Background

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 endoplasmic 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.

Gene References into Functions

miR-196b improved radiosensitivity of SNU-638 cells by targeting RAD23B. PMID: 29864624
Several mutations in the two parts of the central "crest" of the arrestin molecule, middle-loop and C-loop, enhanced or reduced arrestin-3 interactions with several GPCRs in receptor subtype and functional state-specific manner. PMID: 28473198
XPC dissociation from the damage site could become a rate-limiting step in nucleotide excision repair (NER) of certain types of DNA adducts, leading to repression of NER. PMID: 27327897
HR23B role in DNA reapair, in protein degradation and stability, tumorigenesis and neurodegenerative disorders [review] PMID: 27771451
Data show that nucleotide excision repair factor XPC-RAD23B is a target of poly(ADP-ribosyl)ation catalyzed by poly(ADP-ribose) polymerase 1 (PARP1). PMID: 26170451
RAD23B has a potential role in breast cancer progression and a tumor suppressor role of nuclear RAD23B in breast cancer. PMID: 24897598
It is unlikely that the RAD23B 249Val/Val polymorphism may contribute to the individual susceptibility to cancer risk. PMID: 24643114
Results define a regulatory mechanism that involves the interplay between HR23B and HDAC6 that influences the biological outcome of HDAC inhibitor treatment. PMID: 23703321
Polymorphism in RAD23B gene is associated with breast cancer. PMID: 23776089
HR23B expression was associated with disease stabilization for patients with unresectable hepatocellular carcinoma treated with epigenetic therapy using belinostat, a histone deacetylase inhibitor. PMID: 22915658
Single nucleotide polymorphisms of CCND2, RAD23B, GRP78, CEP164, MDM2, and ALDH2 genes were significantly associated with development and recurrence of hepatocellular carcinoma in Japanese patients with hepatitis C virus. PMID: 22004425
PNGase-PUB serves not only as p97-binding module but also as a possible activator of HR23 in endoplasmic reticulum-associated degradation mechanisms. PMID: 22575648
26S proteasomes and p97/VCP complexes bind to the ubiquitin-like domain of HHR23B. PMID: 19182904
Gene expression of RAD23B was down-regulated during early apoptosis in human hepatoma cells exposed to Paeoniae Radix extract in vitro. PMID: 12215374
analysis of mHR23A/B double-mutant cells showed that HR23 proteins function in nucleotide excision repair by governing xeroderma pigmentosum group C protein stability via partial protection against proteasomal degradation PMID: 12815074
Highly expressed in the human testis and in ejaculated spermatozoa. This novel alternative splicing form of RAD23B is correlated with human spermatogenesis. PMID: 15064313
the human nucleotide excision repair gene, hHR23B, is epigenetically silenced in interleukin-6-responsive multiple myeloma KAS-6/1 cells PMID: 15550378
Results describe the solution structure of a protein fragment containing amino acids 275-342 of hHR23B and compare it with the previously reported solution structures of the corresponding domain of hHR23A. PMID: 15885096
intracellular distribution hHR23B is cell cycle dependent PMID: 16253613
determined that hHR23A and hHR23B could be co-purified with unique proteolytic and stress-responsive factors from human breast cancer tissues, indicating that they have unique functions in vivo PMID: 16712842
Fluorescence correlation spectroscopy of the binding of nucleotide excision repair protein XPC-HHR23B with DNA substrates is reported. PMID: 18574675
Genetic polymorphisms in RAD23B is associated with Laryngeal cancer risk associated with smoking and alcohol consumption. PMID: 19444904
XPC subunit interaction with DNA is stimulated by endogenous HR23B. PMID: 19538122
BRG1 stimulates the recruitment of XPG and PCNA to successfully culminate the nucleotide excision repair. PMID: 19740755

Hide All

Subcellular Location

Nucleus. Cytoplasm. Note=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.

Protein Families

RAD23 family

Database Links

HGNC: 9813

OMIM: 600062

KEGG: hsa:5887

STRING: 9606.ENSP00000350708

UniGene: Hs.521640

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Code	CSB-RA019260MA1HU
Size	US$210
	Order now
Image	Immunofluorescence staining of Hela cell with CSB-RA019260MA1HU at 1:30 ,counter-stained with DAPI. The cells were fixed in 4% formaldehyde, permeabilized using 0.2% Triton X-100 and blocked in 10% normal Goat Serum. The cells were then incubated with the antibody overnight at 4°C. The secondary antibody was Fluorescein (FITC) AffiniPure Goat Anti-Human IgG, Fcγ fragment specific. Overlay Peak curve showing Hela cells stained with CSB-RA019260MA1HU (red line) at 1:100. The cells were fixed in 4% formaldehyde and permeated by 0.2% TritonX-100 for 10min. Then 10% normal goat serum to block non-specific protein-protein interactions followed by the antibody (1ug/110⁶cells) for 45min at 4℃. The secondary antibody used was Fluorescein (FITC) AffiniPure Goat Anti-Human IgG, Fcγ fragment specific at 1:200 dilution for 35 min at 4℃.Control antibody (green line) was human IgG1 (1ug/110⁶cells) used under the same conditions. Acquisition of >10,000 events was performed.
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RAD23B Recombinant Monoclonal Antibody

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