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  • KD/KO Validated

NF-κB p65 Monoclonal antibody

NF-κB p65 Monoclonal Antibody for WB, IHC, ELISA

Host / Isotype

Mouse / IgG1


Human and More (4)







Cat no : 66535-1-Ig


NF-kB, NFKB3, NF-κB, NF-κB p65, NF-κB3, p65, RELA, Transcription factor p65

Tested Applications

Positive WB detected inHeLa cells, HEK-293 cells, NIH/3T3 cells, MOLT-4 cells, Jurkat cells, Raji cells
Positive IHC detected inhuman breast cancer tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0

Recommended dilution

Western Blot (WB)WB : 1:1000-1:4000
Immunohistochemistry (IHC)IHC : 1:150-1:600
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
Sample-dependent, Check data in validation data gallery.

Product Information

66535-1-Ig targets NF-κB p65 in WB, IF, RIP, IHC, CoIP, ChIP, ELISA applications and shows reactivity with Human samples.

Tested Reactivity Human
Cited Reactivityhuman, chicken, pig, bovine
Host / Isotype Mouse / IgG1
Class Monoclonal
Type Antibody
Immunogen NF-κB p65 fusion protein Ag1199
Full Name v-rel reticuloendotheliosis viral oncogene homolog A (avian)
Calculated Molecular Weight 65 kDa
Observed Molecular Weight 65 kDa
GenBank Accession NumberBC011603
Gene Symbol RELA
Gene ID (NCBI) 5970
Conjugate Unconjugated
Form Liquid
Purification MethodProtein A purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA.

Background Information

Nuclear factor k B (NF-kB) is a sequence-specific DNA-binding protein complex which regulates the expression of viral genomes, including the human immunodeficiency virus, and a variety of cellular genes, particularly those involved in immune and inflammatory responses. The members of the NF-Kb family in mammalian cells include the proto-oncogene c-Rel,p50/p105 (NFkB1), p65 (RelA), p52/p100 (NFkB2), and RelB. All of these proteins share a conserved 300-amino acid region known as the Rel homology domain which is responsible for DNA binding, dimerization, and nuclear translocation of NF-Kb. The p65 subunit is a major component of NF-Kb complexes and is responsible for trans-activation. 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. It associates with chromatin at the NF-kappa-B promoter region via association with DDX1.


Product Specific Protocols
WB protocol for NF-κB p65 antibody 66535-1-IgDownload protocol
IHC protocol for NF-κB p65 antibody 66535-1-IgDownload protocol
IF protocol for NF-κB p65 antibody 66535-1-IgDownload protocol
Standard Protocols
Click here to view our Standard Protocols



Cell Rep

METTL3-mediated m6A mRNA methylation regulates neutrophil activation through targeting TLR4 signaling

Authors - Shuhua Luo


Prussian blue nanozyme-mediated nanoscavenger ameliorates acute pancreatitis via inhibiting TLRs/NF-κB signaling pathway.

Authors - Xue Xie

Clin Transl Med

PRKAR2A-derived circular RNAs promote the malignant transformation of colitis and distinguish patients with colitis-associated colorectal cancer.

Authors - Daiwei Wan


Ginsenoside Rb1 protects hippocampal neurons in depressed rats based on mitophagy-regulated astrocytic pyroptosis

Authors - Yannan Li

Br J Pharmacol

Neutrophil Elastase Promotes Neointimal Hyperplasia by Targeting TLR4-NFкB Signalling.

Authors - Mei Yang

Biomed Pharmacother

Baicalin ameliorates multidrug-resistant Pseudomonas aeruginosa induced pulmonary inflammation in rat via arginine biosynthesis

Authors - Lei Li


The reviews below have been submitted by verified Proteintech customers who received an incentive forproviding their feedback.


Udesh (Verified Customer) (04-19-2023)

Lowest membrane part has NF-kB p65 in U2OS cells

  • Applications: Western Blot
  • Primary Antibody Dilution: 1:1000
  • Cell Tissue Type: U2OS
NF-κB p65 Antibody Western Blot validation (1:1000 dilution) in U2OS (Cat no:66535-1-Ig)

Federica (Verified Customer) (01-16-2023)

The band comes out well even when low total protein concentration is loaded (15 ug).

  • Applications: Western Blot
  • Primary Antibody Dilution: 1:1000
  • Cell Tissue Type: Dendritic cells