Product nameAnti-NF-kB p65 antibody
See all NF-kB p65 primary antibodies
DescriptionChicken polyclonal to NF-kB p65
Tested applicationsSuitable for: WBmore details
Species reactivityReacts with: Rat, Human
Predicted to work with: Mouse, Cow, Pig, Chimpanzee, Macaque monkey, Gorilla, Chinese hamster
Synthetic peptide within Human NF-kB p65 aa 500 to the C-terminus conjugated to keyhole limpet haemocyanin. The exact sequence is proprietary.
- This antibody gave a positive signal in the following lysates: HeLa whole cell; Jurkat whole cell; Rat spleen tissue.
Storage instructionsShipped at 4°C. Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
Storage bufferpH: 7.40
Preservative: 0.02% Sodium azide
Constituents: PBS, 3% BSA
Concentration information loading...
PurityProtein L purified
Our Abpromise guarantee covers the use of ab140751 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||Use a concentration of 1 µg/ml. Detects a band of approximately 65 kDa (predicted molecular weight: 65 kDa).|
FunctionNF-kappa-B is a pleiotropic transcription factor which is present in almost all cell types and is involved in many biological processed 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 directly to DNA binding in the NF-kappa-B complex. Associates with chromatin at the NF-kappa-B promoter region via association with DDX1.
Sequence similaritiesContains 1 RHD (Rel-like) domain.
Domainthe 9aaTAD motif is a transactivation domain present in a large number of yeast and animal transcription factors.
modificationsUbiquitinated, leading to its proteasomal degradation. Degradation is required for termination of NF-kappa-B response.
Monomethylated at Lys-310 by SETD6. Monomethylation at Lys-310 is recognized by the ANK repeats of EHMT1 and promotes the formation of repressed chromatin at target genes, leading to down-regulation of NF-kappa-B transcription factor activity. Phosphorylation at Ser-311 disrupts the interaction with EHMT1 without preventing monomethylation at Lys-310 and relieves the repression of target genes.
Phosphorylation at Ser-311 disrupts the interaction with EHMT1 and promotes transcription factor activity (By similarity). Phosphorylation on Ser-536 stimulates acetylation on Lys-310 and interaction with CBP; the phosphorylated and acetylated forms show enhanced transcriptional activity.
Reversibly acetylated; the acetylation seems to be mediated by CBP, the deacetylation by HDAC3. Acetylation at Lys-122 enhances DNA binding and impairs association with NFKBIA. Acetylation at Lys-310 is required for full transcriptional activity in the absence of effects on DNA binding and NFKBIA association. Acetylation can also lower DNA-binding and results in nuclear export. Interaction with BRMS1 promotes deacetylation of 'Lys-310'.
Cellular localizationNucleus. Cytoplasm. Nuclear, but also found in the cytoplasm in an inactive form complexed to an inhibitor (I-kappa-B). Colocalized with RELA in the nucleus upon TNF-alpha induction.
- Information by UniProt
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Lane 1: Wild-type HAP1 cell lysate (20 µg)
Lane 2: NF-κB p60 knockout HAP1 cell lysate (20 µg)
Lane 3: HeLa cell lysate (20 µg)
Lane 4: A431 cell lysate (20 µg)
Lanes 1 - 4: Merged signal (red and green). Green - ab140751 observed at 70 kDa. Red - ab8245 loading control, observed at 37 kDa.
ab140751 was shown to specifically react with NF-κB p65 in wild-type HAP1 cells. No band was observed when NF-κB p65 knockout samples were used. Wild-type and NF-κB p65 knockout samples were subjected to SDS-PAGE. ab140751 (NF-κB p65) and ab8245 (loading control to GAPDH) were diluted 1 μg/mL and 1/2000 and incubated overnight at 4°C. Blots were developed with IRDye® 800CW Donkey anti-Chicken IgG (H + L) and Donkey Anti-Rabbit IgG H&L (IRDye® 680RD) preadsorbed ab216779 secondary antibodies at 1/10 000 dilution for 1 h at room temperature before imaging.
All lanes : Anti-NF-kB p65 antibody (ab140751) at 1 µg/ml
Lane 1 : HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate
Lane 2 : Jurkat (Human T cell lymphoblast-like cell line) Whole Cell Lysate
Lane 3 : Spleen (Rat) Tissue Lysate
Lysates/proteins at 20 µg per lane.
All lanes : Goat Anti-Chicken IgY H&L (HRP) (ab6877) at 1/10000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 65 kDa
Observed band size: 65 kDa
Additional bands at: 120 kDa. We are unsure as to the identity of these extra bands.
Exposure time: 1 minute