| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | E3 ubiquitin-protein ligase RNF168; hRNF168; RING finger protein 168; RING-type E3 ubiquitin transferase RNF168; RNF168 |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Gene ID | |
| Host | |
| Immunogen | E.coli-derived human RNF168 recombinant protein (Position: K5-K571). |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Reconstitution | |
| Target | |
| UniProt # |
Overview
Anti-RNF168 Picoband® Antibody is an antibody for RNF168 detection raised in Rabbit (Polyclonal, Rabbit IgG), with reported reactivity: Human. Commonly used in WB, IHC, IF, ICC, Flow Cytometry, ELISA workflows.
Key elements and design rationale
- Target: RNF168 (ring finger protein 168); UniProt: Q8IYW5; NCBI Gene: 165918
- Antibody format: Rabbit, Polyclonal, Rabbit IgG
- Molecular weight: 65 kDa, calculated 123799 MW
- Applications: WB, IHC, IF, ICC, Flow Cytometry, ELISA
Vendor description (summary): Boster Bio Anti-RNF168 Picoband® Antibody catalog # A01224-1.
Biological background
Biological context: E3 ubiquitin-protein ligase required for accumulation of repair proteins to sites of DNA damage. Acts with UBE2N/UBC13 to amplify the RNF8-dependent histone ubiquitination. Recruited to sites of DNA damage at double-strand breaks (DSBs) by binding to ubiquitinated histone H2A and H2AX and amplifies the RNF8-dependent H2A ubiquitination, promoting the formation of 'Lys-63'-linked ubiquitin conjugates. This leads to concentrate ubiquitinated histones H2A and H2AX at DNA lesions to the threshold required for recruitment of TP53BP1 and BRCA1. Also recruited at DNA interstrand cross-links (ICLs) sites and promotes accumulation of 'Lys-63'-linked ubiquitination of histones H2A and H2AX, leading to recruitment of FAAP20/C1orf86 and Fanconi anemia (FA) complex, followed by interstrand cross-link repair. H2A ubiquitination also mediates the ATM-dependent transcriptional silencing at regions flanking DSBs in cis, a mechanism to avoid collision between transcription and repair intermediates. Also involved in class switch recombination in immune system, via its role in regulation of DSBs repair. Following DNA damage, promotes the ubiquitination and degradation of JMJD2A/KDM4A in collaboration with RNF8, leading to unmask H4K20me2 mark and promote the recruitment of TP53BP1 at DNA damage sites. Not able to initiate 'Lys-63'-linked ubiquitination in vitro; possibly due to partial occlusion of the UBE2N/UBC13-binding region. Catalyzes monoubiquitination of 'Lys-13' and 'Lys-15' of nucleosomal histone H2A (H2AK13Ub and H2AK15Ub, respectively).
Expression and localization notes: cellular localization: Nucleus., tissue context: Widely expressed. Strongly expressed in testis, prostate, and ovary. Overexpressed in cancer cell lines. Isoform 5 and isoform 6 may only be expressed in tumor cell lines..
Common research applications
- Western blotting (WB): Compare RNF168 levels across samples and conditions using appropriate loading and biological controls.
- Immunohistochemistry (IHC): Evaluate spatial distribution of RNF168 in tissue sections, considering fixation and antigen retrieval effects.
- Immunofluorescence / ICC: Assess subcellular localization patterns and co-localization with compartment markers in cultured cells.
- Flow cytometry: Quantify RNF168-positive populations in single-cell suspensions with appropriate gating and controls.
- ELISA: Use antibody-based detection formats to assess antigen presence or binding in plate-based assays.
Notes for experimental interpretation
- Account for isoforms, post-translational modifications, and sample-specific processing that can shift apparent molecular weight or epitope accessibility.
- Use positive/negative biological controls where possible (e.g., known-expressing cells/tissues, knockdown/knockout models) and include appropriate secondary-only/isotype controls for imaging workflows.
Additional product notes (from provided fields)
- Specificity: No cross reactivity with other proteins.
- Background: Ring finger protein 168 is a protein that in humans is encoded by the RNF168 gene. It is mapped to 3q29. This gene encodes an E3 ubiquitin ligase protein that contains a RING finger, a motif present in a variety of functionally distinct proteins and known to be involved in protein-DNA and protein-protein interactions. The protein is involved in DNA double-strand break (DSB) repair. Mutations in this gene result in Riddle syndrome.
- Cross reactivity: No cross-reactivity with other proteins.
- Cellular localization: Nucleus.
- Tissue details: Widely expressed. Strongly expressed in testis, prostate, and ovary. Overexpressed in cancer cell lines. Isoform 5 and isoform 6 may only be expressed in tumor cell lines.
- Research category: Alzheimer's Disease,Apoptosis,Associated Proteins,Cancer,Cancer Susceptibility,Cell Biology,Epigenetics and Nuclear Signaling,Growth Factors,Intracellular,Neurodegenerative Disease,Neurology Process,Neuroscience,Oncoproteins/Suppressors,p53 Pathway,Transcription,Tumor Suppressors
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
