Rabbit Polyclonal Phospho-NFkappaB-p65 (T254) antibody (STJ90352)


Reactivity: Human, Mouse, Rat
Applications: WB, IHC, IP, ELISA
Conjugation: Unconjugated
Supplier: St John’s Laboratory Ltd.

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Rabbit Polyclonal Phospho-NFkappaB-p65 (T254) antibody (STJ90352)

Supplier: St John’s Laboratory Ltd.

Recommended applications: WB, IHC, IP, ELISA

Recommended dilution: WB 1:500-1:2000; IHC 1:100-1:300; IP 1:200-500; ELISA 1:20000;

Recommended protocols: check protocols

Image descriptions:

Click or hover above images to see image description for NFkappaB-p65 (phospho Thr254) Polyclonal Antibody.

Alternative names:

Check alternative names for the antibody


RELA antibody, NFKB3 antibody,|Avian reticuloendotheliosis viral (v rel) oncogene homolog A antibody|MGC131774 antibody|NF kappa B p65delta3 antibody|NFKB3 antibody|Nuclear Factor NF Kappa B p65 Subunit antibody|Nuclear factor NF-kappa-B p65 subunit antibody|Nuclear factor of kappa light polypeptide gene enhancer in B cells 3 antibody|Nuclear factor of kappa light polypeptide gene enhancer in B-cells 3 antibody|OTTHUMP00000233473 antibody|OTTHUMP00000233474 antibody|OTTHUMP00000233475 antibody|OTTHUMP00000233476 antibody|OTTHUMP00000233900 antibody|p65 antibody|p65 NF kappaB antibody|p65 NFkB antibody|relA antibody|TF65_HUMAN antibody|Transcription factor p65 antibody|v rel avian reticuloendotheliosis viral oncogene homolog A (nuclear factor of kappa light polypeptide gene enhancer in B cells 3 (p65)) antibody|V rel avian reticuloendotheliosis viral oncogene homolog A antibody|v rel reticuloendotheliosis viral oncogene homolog A (avian) antibody|V rel reticuloendotheliosis viral oncogene homolog A, nuclear factor of kappa light polypeptide gene enhancer in B cells 3, p65 antibody|Anti-NF-kB p65 antibody (ab16502)
SCBT cat No: sc-56735|sc-71675|sc-71677|sc-109|sc-514451|sc-372|sc-515045|sc-8008|sc-398442|sc-7151|sc-74445|sc-74444|sc-398751|sc-30918|sc-5567|sc-870|sc-331|sc-55575|sc-332|sc-55574|sc-28247|sc-271718|sc-365068|sc-365283|



NFkappaB-p65 (phospho Thr254) Polyclonal Antibody

Catalogue No.



Human, Mouse, Rat


Phospho-NFkappaB-p65 (T254) Polyclonal Antibody detects endogenous levels of NFkappaB-p65 protein only when phosphorylated at T254.


Synthesized phospho-peptide derived from NFkappaB-p65 (phospho Thr254) at AA range 190-270





Recommended dilution

WB 1:500-1:2000; IHC 1:100-1:300; IP 1:200-500; ELISA 1:20000;







Molecular weight

65 kDa


NFkappaB-p65 (phospho Thr254) Antibody was tube-contained. Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.


1 mg/ml


NFkappaB-p65 (phospho Thr254) Antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.


-20 Celsius degree. Avoid repeated freeze/thaw cycles.

Alternative antibody names

Transcription factor p65 antibody, Nuclear factor NF-kappa-B p65 subunit antibody, Nuclear factor of kappa light polypeptide gene enhancer in B-cells 3 antibody

Database links

Human UniProt/Swiss-Prot:Q04206;Mouse UniPort/Swiss-Prot: Q04207;Rat UniProt/Swiss-Port: Q7TQN4;Human Entrez Gene: 5970;Mouse Entrez Gene: 19697;Rat Entrez Gene: Rn.19480

Protein names

Transcription factor p65 , Nuclear factor NF-kappa-B p65 subunit , Nuclear factor of kappa light polypeptide gene enhancer in B-cells 3

Protein 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 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. Essential for cytokine gene expression in T-cells .

Involvement in disease

Note: A chromosomal aberration involving C11orf95 is found in more than two-thirds of supratentorial ependymomas. Translocation with C11orf95 produces a C11orf95-RELA fusion protein. C11orf95-RELA translocations are potent oncogenes that probably transform neural stem cells by driving an aberrant NF-kappa-B transcription program (PubMed:24553141). .

Protein sequence and domain

the 9aaTAD motif is a transactivation domain present in a large number of yeast and animal transcription factors. / Contains 1 RHD (Rel-like) domain.

Protein post-translational modifications

Ubiquitinated, 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 (By similarity). / 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. Phosphorylation at Ser-276 by RPS6KA4 and RPS6KA5 promotes its transactivation and transcriptional activities. / Reversibly acetylated; the acetylation seems to be mediated by CBP, the deacetylation by HDAC3 and SIRT2. 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 at Lys-310 promotes interaction with BRD4. Acetylation can also lower DNA-binding and results in nuclear export. Interaction with BRMS1 promotes deacetylation of Lys-310. Lys-310 is deacetylated by SIRT2. / S-nitrosylation of Cys-38 inactivates the enzyme activity. / Sulfhydration at Cys-38 mediates the anti-apoptotic activity by promoting the interaction with RPS3 and activating the transcription factor activity. / Sumoylation by PIAS3 negatively regulates DNA-bound activated NF-kappa-B. / Proteolytically cleaved within a conserved N-terminus region required for base-specific contact with DNA in a CPEN1-mediated manner, and hence inhibits NF-kappa-B transcriptional activity .

Protein cellular localization

Nucleus / Cytoplasm

Research area

All research areas>Transcription Regulators>NF kappa B
(View all antibody categories related to Transcription Regulators)


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St John’s Laboratory Ltd.

Product type

Primary antibody


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