CST, 23501S, Phospho-NF-kappaB p65 (Ser529) (E3K3J) Rabbit Monoclonal Antibody (PE Conjugate)

Monoclonal Antibody for studying NFkB-p65 (Ser529) phosphate. Validated for Flow Cytometry (Fixed/Permeabilized). Highly specific and rigorously validated in-house, Phospho-NF-kappaB p65 (Ser529) (E3K3J) Rabbit Monoclonal Antibody (PE Conjugate) (CST #23501) is ready to ship. Product Usage Information Flow Cytometry (Fixed/Permeabilized): 1:50 Storage Supplied in PBS (pH 7.2), less than 0.1% sodium azide, and 2 mg/mL BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze. Protocol Available protocols: Flow Cytometry (Fixed/Permeabilized) Specificity / Sensitivity Phospho-NF-kappaB p65 (Ser529) (E3K3J) Rabbit Monoclonal Antibody (PE Conjugate) recognizes endogenous levels of NF-κB p65 protein only when phosphorylated at Ser529. Species Reactivity: Human Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser529 of human NF-κB p65 protein. Background Transcription factors of the nuclear factor κB (NF-κB)/Rel family play a pivotal role in inflammatory and immune responses (1,2). There are five family members in mammals: RelA, c-Rel, RelB, NF-κB1 (p105/p50), and NF-κB2 (p100/p52). Both p105 and p100 are proteolytically processed by the proteasome to produce p50 and p52, respectively. Rel proteins bind p50 and p52 to form dimeric complexes that bind DNA and regulate transcription. In unstimulated cells, NF-κB is sequestered in the cytoplasm by IκB inhibitory proteins (3-5). NF-κB-activating agents can induce the phosphorylation of IκB proteins, targeting them for rapid degradation through the ubiquitin-proteasome pathway and releasing NF-κB to enter the nucleus where it regulates gene expression (6-8). NIK and IKKα (IKK1) regulate the phosphorylation and processing of NF-κB2 (p100) to produce p52, which translocates to the nucleus (9-11). Phosphorylation of NF-κB p65 by casein kinase II occurs following disassociation of NF-κB and IκB induced by cytokines, such as TNF-α (12). Alternate Names CMCU; MGC131774; NF-kappa-B p65delta3; NF-kappa-B transcription factor p65; NFkB-p65; NFKB3; Nuclear factor NF-kappa-B p65 subunit; Nuclear factor of kappa light polypeptide gene enhancer in B-cells 3; p65; RELA; RELA proto-oncogene, NF-kB subunit; RELA/p65; TF65; Transcription factor p65; v-rel avian reticuloendotheliosis viral oncogene homolog A; v-rel avian reticuloendotheliosis viral oncogene homolog A (nuclear factor of kappa light polypeptide gene enhancer in B-cells 3 (p65)); v-rel reticuloendotheliosis viral oncogene homolog A (avian); v-rel reticuloendotheliosis viral oncogene homolog A, nuclear factor of kappa light polypeptide gene enhancer in B-cells 3, p65 Specification REACTIVITY: H SENSITIVITY: Endogenous Source/Isotype: Rabbit IgG