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  4. NF-KB p65 Antibody (YA267)

NF-KB p65 Antibody (YA267)

Cat. No.: HY-P80245
COA User Guide for Antibodies Technical Support

NF-KB p65 Antibody (YA267) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to NF-KB p65.

For research use only. We do not sell to patients.

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Top Publications Citing Use of Products

    NF-KB p65 Antibody (YA267) purchased from MCE. Usage Cited in: Food Biosci. 2025 Jun.

    Effects of JPA on the expression levels of nuclear factor-κB (NF-κB) p65 and NF-κB p-p65 proteins.
    • WB: Western Blot;
    • IHC-P: Immunohistochemistry-Paraffin;
    • IHC-F: Immunohistochemistry-Frozen;
    • ICC/IF: Immunocytochemistry/Immunofluorescence;
    • IF-Tissue: Immunofluorescence-Tissue;
    • mIHC: Multiplex Immunohistochemical;
    • IP: Immunoprecipitation;
    • ChIP: Chromatin Immunoprecipitation;
    • FC: Flow Cytometry;
    • ELISA: Enzyme Linked Immunosorbent Assay
    • Product Detail

    • Verification Image

    • Background

    • Documentation

    Description

    NF-KB p65 Antibody (YA267) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to NF-KB p65.

    Host

    Rabbit

    Clonality

    Recombinant,Monoclonal

    Molecular Weight
    Predicted band size: 65 kDa;
    Observed band size: 65 kDa
    Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.
    Species Reactivity
    Human, Mouse
    SwissProt ID
    Gene ID
    Immunogen

    Synthetic peptide corresponding to Human NF-kB p65.AA range:490-540.

    Application &
    Dilution Ratio
    Application Dilution Ratio
    WB
    WB: Western Blot
    1:500-1:2000
    ICC/IF
    ICC/IF: Immunocytochemistry/Immunofluorescence
    1:50-1:200
    IHC-P
    IHC-P: Immunohistochemistry-Paraffin
    1:50-1:200
    FC
    FC: Flow Cytometry
    1:50-1:100
    IP
    IP: Immunoprecipitation
    Use at an assay dependent concentration.
    Sensitivity Endogenous Purity Protein A affinity purified.
    Conjugation Non-conjugated Modification Unmodified
    Isotype IgG  
    Appearance

    Liquid

    Formulation

    Supplied in 1*TBS (pH7.4), 0.05% BSA and 40% Glycerol. Preservative: 0.05% Sodium Azide.

    Storage & Stability

    Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

    Shipping

    Shipping with blue ice.

    Verification Image
    ALL WB ICC IHC-P FC mIHC
    • Western blot analysis of extracts from Hela (lane 2(20μg) , A549 (lane 3(20μg) , RAW264.7 (lane 4(20μg),using NF-KB p65 Antibody (HY-P80245). Proteins were transferred to a PVDF membrane and blocked with 5% BSA in TBST for 2 hour at room temperature. The primary antibody and Loading control antibody (Beta Actin, HY-P80438, 1/3000) was used in 5% BSA in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (HY-P8004/HY-P8001, 1/10,000) was used for 1 hour at room temperature.

    • Immunocytochemistry analysis of HepG2 cells labeling NF-KB p65 with NF-KB p65 Antibody (HY-P80245) at 1/50 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 for 10 minutes at room temperature, then blocked with QuickBlock™ Blocking Buffer for Immunol Staining for 10 min at room temperature. Cells were then incubated with NF-KB p65 Antibody (HY-P0245) at 1/50 dilution in QuickBlock™ Blocking Buffer for Immunol Staining at 4 ℃. Alexa Fluor® 488-conjugated AffiniPure Goat Anti-Rabbit IgG H&L(HY-P8002, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).

    • Immunocytochemistry analysis of A549 cells labeling NF-KB p65 with NF-KB p65 Antibody (HY-P80245) at 1/50 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 for 10 minutes at room temperature, then blocked with QuickBlock™ Blocking Buffer for Immunol Staining for 10 min at room temperature. Cells were then incubated with NF-KB p65 Antibody (HY-P80245)at 1/50 dilution in QuickBlock™ Blocking Buffer for Immunol Staining at 4 ℃. Alexa Fluor® 488-conjugated AffiniPure Goat Anti-Rabbit IgG H&L(HY-P8002,Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).

    • Immunohistochemical analysis of paraffin-embedded Mouse spleen tissue using NF-KB p65 Antibody (YA267). The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked in QuickBlock for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HY-P80245, 1/200) in 4℃ overnight. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

    • Immunohistochemical analysis of paraffin-embedded Mouse spleen tissue using NF-KB p65 Antibody (YA267). The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked in QuickBlock for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HY-P80245, 1/200) in 4℃ overnight. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

    • Flow cytometric analysis of 1X10^6 Hela cells labeling NF-KB p65 Antibody(HY-P80245, red). Cells were fixed with 4% paraformaldehyde and permeabilised with 90% methanol. Then stained with the primary antibody at 1/1000 dilution for an hour at 4℃. Alexa Fluor® 488-conjugated AffiniPure Goat Anti-Rabbit IgG H&L (HY-P8002) was used as the secondary antibody at 1/1,000 dilution for 30 minutes at 4℃. Rabbit IgG Isotype Control (HY-P80879, blue) was used as the isotype control, cells without incubation with primary antibody were used as the unlabeled control (black).

    • Immunohistochemical analysis of paraffin-embedded human Pancreatic carcinoma‌ tissue using NF-KB p65 antibody was performed. The section was pretreated using high-temperature and high-pressure mediated EDTA antigen retrieval buffer (pH 9.0), for 5 minutes. The tissues were incubated with primary antibody (HY-P80245, 1:100 dilution) at room temperature for 60 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.

    • Immunohistochemical analysis of paraffin-embedded human ovarian carcinoma tissue using NF-KB p65 antibody was performed. The section was pretreated using high-temperature and high-pressure mediated EDTA antigen retrieval buffer (pH 9.0), for 5 minutes. The tissues were incubated with primary antibody (HY-P80245, 1:100 dilution) at room temperature for 60 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.

    • Tyramide signaling amplification based immunofluorescence was performed on paraffin-embedded human ovarian carcinoma (sample 1) tissue using NF-KB p65 antibody. Antigen retrieval was performed in EDTA buffer pH 9.0 (95 °C, 20 min) followed by cooling to RT. Then incubated with primary antibody (HY-P80245, 1:100 dilution) at room temperature for 60 minutes and HRP conjugated secondary antibody for 10 minutes. Fluorescence was then developed with TSA520 . The tissues were counterstained with DAPI and mounted with Anti-fade mounting medium.

    • Tyramide signaling amplification based immunofluorescence was performed on paraffin-embedded human ovarian carcinoma (sample 2) tissue using NF-KB p65 antibody. Antigen retrieval was performed in EDTA buffer pH 9.0 (95 °C, 20 min) followed by cooling to RT. Then incubated with primary antibody (HY-P80245, 1:100 dilution) at room temperature for 60 minutes and HRP conjugated secondary antibody for 10 minutes. Fluorescence was then developed with TSA520 . The tissues were counterstained with DAPI and mounted with Anti-fade mounting medium.

    Background
    Function: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. The heterodimeric RELA-NFKB1 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. The NF-kappa-B heterodimeric RELA-NFKB1 and RELA-REL complexes, for instance, function as transcriptional activators. 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. The inhibitory effect of I-kappa-B on NF-kappa-B through retention in the cytoplasm is exerted primarily through the interaction with RELA. RELA shows a weak DNA-binding site which could contribute directly to DNA binding in the NF-kappa-B complex. Besides its activity as a direct transcriptional activator, it is also able to modulate promoters accessibility to transcription factors and thereby indirectly regulate gene expression. Associates with chromatin at the NF-kappa-B promoter region via association with DDX1. Essential for cytokine gene expression in T-cells (PubMed:15790681). The NF-kappa-B homodimeric RELA-RELA complex appears to be involved in invasin-mediated activation of IL-8 expression. Key transcription factor regulating the IFN response during SARS-CoV-2 infection (PubMed:33440148)
    Subcellular Localization:Nucleus; Cytoplasm
    Subunit:Component of the NF-kappa-B p65-p50 complex. Component of the NF-kappa-B p65-c-Rel complex. Homodimer; component of the NF-kappa-B p65-p65 complex. Component of the NF-kappa-B p65-p52 complex. May interact with ETHE1. Binds TLE5 and TLE1. Interacts with TP53BP2. Binds to and is phosphorylated by the activated form of either RPS6KA4 or RPS6KA5. Interacts with ING4 and this interaction may be indirect. Interacts with CARM1, USP48 and UNC5CL. Interacts with IRAK1BP1 (By similarity). Interacts with NFKBID (By similarity). Interacts with NFKBIA (PubMed:1493333). Interacts with GSK3B. Interacts with NFKBIB (By similarity). Interacts with NFKBIE. Interacts with NFKBIZ. Interacts with EHMT1 (via ANK repeats) (PubMed:21515635). Part of a 70-90 kDa complex at least consisting of CHUK, IKBKB, NFKBIA, RELA, ELP1 and MAP3K14. Interacts with HDAC3; HDAC3 mediates the deacetylation of RELA. Interacts with HDAC1; the interaction requires non-phosphorylated RELA. Interacts with CBP; the interaction requires phosphorylated RELA. Interacts (phosphorylated at 'Thr-254') with PIN1; the interaction inhibits p65 binding to NFKBIA. Interacts with SOCS1. Interacts with UXT. Interacts with MTDH and PHF11. Interacts with ARRB2. Interacts with NFKBIA (when phosphorylated), the interaction is direct; phosphorylated NFKBIA is part of a SCF(BTRC)-like complex lacking CUL1. Interacts with RNF25. Interacts (via C-terminus) with DDX1. Interacts with UFL1 and COMMD1. Interacts with BRMS1; this promotes deacetylation of 'Lys-310'. Interacts with NOTCH2 (By similarity). Directly interacts with MEN1; this interaction represses NFKB-mediated transactivation. Interacts with AKIP1, which promotes the phosphorylation and nuclear retention of RELA. Interacts (via the RHD) with GFI1; the interaction, after bacterial lipopolysaccharide (LPS) stimulation, inhibits the transcriptional activity by interfering with the DNA-binding activity to target gene promoter DNA. Interacts (when acetylated at Lys-310) with BRD4; leading to activation of the NF-kappa-B pathway. Interacts with MEFV. Interacts with CLOCK (By similarity). Interacts (via N-terminus) with CPEN1; this interaction induces proteolytic cleavage of p65/RELA subunit and inhibition of NF-kappa-B transcriptional activity (PubMed:18212740). Interacts with FOXP3. Interacts with CDK5RAP3; stimulates the interaction of RELA with HDAC1, HDAC2 and HDAC3 thereby inhibiting NF-kappa-B transcriptional activity (PubMed:17785205). Interacts with DHX9; this interaction is direct and activates NF-kappa-B-mediated transcription (PubMed:15355351). Interacts with LRRC25 (PubMed:29044191). Interacts with TBX21 (By similarity). Interacts with KAT2A (By similarity). Interacts with ZBTB7A; involved in the control by RELA of the accessibility of target gene promoters (PubMed:29813070). Directly interacts with DDX3X; this interaction may trap RELA in the cytoplasm, impairing nuclear relocalization upon TNF activating signals (PubMed:27736973). Interacts with PHF2 (By similarity). Interacts with MKRN2; the interaction leads to its polyubiquitination and proteasome-dependent degradation (By similarity). Interacts with ECSIT (PubMed:25355951). Interacts with RAB28; the interaction contributes to RELA transport from cytoplasm to nucleus (By similarity)
    RRID
    Database
    Research Field

    Cell Biology

    Synonyms
    NF-κB p65 Antibody
    Documentation
    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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    Product Name:
    NF-KB p65 Antibody (YA267)
    Cat. No.:
    HY-P80245
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