Anti-NF-Kappa B p65 RELA Rabbit Monoclonal Antibody

Overview

This product is an anti-RELA antibody for target detection and characterization. Key identifiers include host species: Rabbit; Monoclonal; clone HH-18; isotype Rabbit IgG; reactivity: Human,Mouse. Reported application contexts include WB, IHC, ICC, IF, IP, Flow (as provided in the source record). Boster Bio Anti-NF-Kappa B p65 RELA Rabbit Monoclonal Antibody catalog # M00284. Tested in WB, IHC, ICC/IF, IP, Flow Cytometry applications. This antibody reacts with Human, Mouse.

Key elements and design rationale

• Target: RELA (Transcription factor p65).
• Antibody format: Monoclonal; clone HH-18; isotype Rabbit IgG.
• Host: Rabbit.
• Species reactivity: Human,Mouse (confirm in your model system with appropriate controls).

This description is intended to help interpret the antibody design and the biological context of the target using the fields provided in the catalog record, alongside general experimental considerations.

Biological background

RELA (protein: P2X purinoceptor 1) is a commonly studied target in molecular and cellular biology. Functional context (as provided): NF-kappa-B is a pleiotropic transcription factor present in almost all cell types and is the endpoint of a series of signal transduction events that are initiated by a vast array of stimuli related to many biological processes such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis. NF-kappa-B is a homo- or heterodimeric complex formed by the Rel-like domain-containing proteins RELA/p65, RELB, NFKB1/p105, NFKB1/p50, REL and NFKB2/p52 and the heterodimeric p65-p50 complex appears to be most abundant one. The dimers bind at kappa-B sites in the DNA of their target genes and the individual dimers have distinct preferences for different kappa-B sites that they can bind with distinguishable affinity and specificity. Different dimer combinations act as transcriptional activators or repressors, respectively. NF-kappa-B is controlled by various mechanisms of post-translational modification and subcellular compartmentalization as well as by interactions with other cofactors or corepressors. NF-kappa-B complexes are held in the cytoplasm in an inactive state complexed with members of the NF-kappa-B inhibitor (I-kappa-B) family. In a conventional activation pathway, I-kappa-B is phosphorylated by I-kappa-B kinases (IKKs) in response to different activators, subsequently degraded thus liberating the active NF-kappa-B complex which translocates to the nucleus. NF-kappa-B heterodimeric p65-p50 and p65-c-Rel complexes are transcriptional activators. The NF-kappa-B p65-p65 complex appears to be involved in invasin-mediated activation of IL-8 expression. The inhibitory effect of I-kappa-B upon NF-kappa-B the cytoplasm is exerted primarily through the interaction with p65. p65 shows a weak DNA-binding site which could contribute ly to DNA binding in the NF-kappa-B complex. Associates with chromatin at the NF-kappa-B promoter region via association with DDX1. Essential for cytokine gene expression in T-cells (PubMed:15790681). . Reported cellular localization context: Nucleus. Cytoplasm. Colocalized with DDX1 in the nucleus upon TNF-alpha induction (By similarity). Nuclear, but also found in the cytoplasm in an inactive form complexed to an inhibitor (I-kappa-B). Colocalizes with GFI1 in the nucleus after LPS stimulation. . Tissue expression notes (as provided): High expression is found in testis, spleen, colon and peripheral blood leukocytes. Low expression is found in other tissues.

Research relevance and current trends

• Research context keywords from the source record include: Apoptosis,Apoptotic Markers,Cancer,Cell Biology,Cell Death,Domain Families,Epigenetics and Nuclear Signaling,Intracellular,Metabolic Signaling Pathways,Metabolism,Mitochondrial Metabolism,NFKB Pathway,Nuclear Hormone Receptors,Nuclear Receptors,Nuclear Signaling,Nuclear Signaling Pathways,Nucleotide Metabolism,Pathways and Processes,Signal Transduction,Signaling Pathway,Transcription,Zinc Finger.
• Current studies often focus on connecting target abundance/localization to pathway perturbations across models, tissues, and cell states.
• Quantitative and multiplexed assays (e.g., imaging + immunoblot panels) are commonly used to compare phenotypes across conditions and time-courses.

Common research applications

• Western blotting (WB): assess relative target abundance across samples, treatments, or time-points.
• Immunohistochemistry (IHC): evaluate spatial distribution of target-positive staining in tissue architecture.
• Immunofluorescence/ICC (IF/ICC): visualize subcellular localization patterns and cell-to-cell heterogeneity.
• Flow cytometry: quantify target-positive populations and compare shifts in marker distributions.
• Immunoprecipitation (IP): enrich target complexes for downstream immunoblot or interaction analyses.

Workflow ideas (metafield): Validate RELA antibody specificity using KO/KD control samples (WB/IF/IHC as appropriate), Detect RELA expression by Western blot in cell or tissue lysates, Detect RELA in FFPE tissue sections by immunohistochemistry, Localize RELA by immunofluorescence/immunocytochemistry in cultured cells, Quantify RELA-positive cells by flow cytometry in single-cell suspensions, Enrich RELA by immunoprecipitation from lysates for downstream analysis

Notes for experimental interpretation

• Consider isoforms and post-translational modifications (PTMs) that may shift apparent molecular weight or epitope accessibility.
• Apparent molecular weight may vary by sample type and processing (observed MW: 75 kDa; calculated MW: 60219 MW).
• Control concepts: include appropriate negative controls (e.g., isotype, KO/KD samples) and orthogonal validation when feasible.

Additional product details (from the source record)

• Molecular weight (observed): 75 kDa
• Cellular localization (provided): Nucleus. Cytoplasm. Colocalized with DDX1 in the nucleus upon TNF-alpha induction (By similarity). Nuclear, but also found in the cytoplasm in an inactive form complexed to an inhibitor (I-kappa-B). Colocalizes with GFI1 in the nucleus after LPS stimulation. .
• Tissue details (provided): High expression is found in testis, spleen, colon and peripheral blood leukocytes. Low expression is found in other tissues.

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.