NFκB-p105/p50(Phospho-Ser337) Antibody

NFκB-p105/p50(Phospho-Ser337) Antibody

Catalog Number:
A001548048RED
Mfr. No.:
RDSA62021
Price:
$483
  • Size:
    100μL
    Quantity:
    Add to Cart:
      • Overview
        • Please contact us at for specific academic pricing.

          Background

          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 RelB-p50 complexes are transcriptional activators. The NF-kappa-B p50-p50 homodimer is a transcriptional repressor, but can act as a transcriptional activator when associated with BCL3. NFKB1 appears to have dual functions such as cytoplasmic retention of attached NF-kappa-B proteins by p105 and generation of p50 by a cotranslational processing. The proteasome-mediated process ensures the production of both p50 and p105 and preserves their independent function, although processing of NFKB1/p105 also appears to occur post-translationally. p50 binds to the kappa-B consensus sequence 5'-GGRNNYYCC-3', located in the enhancer region of genes involved in immune response and acute phase reactions. In a complex with MAP3K8, NFKB1/p105 represses MAP3K8-induced MAPK signaling;active MAP3K8 is released by proteasome-dependent degradation of NFKB1/p105.

      • Properties
        • Host
          rabbit
          Antibody Type
          polyclonal
          Isotype
          IgG
          Reactivity
          human; mouse; rat
          Immunogen
          Peptide sequence around phosphorylation site of serine 337(R-K-S(p)-D-L) derived from Human NFκB-p105/p50.
          Purification
          Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatography using non-phosphopeptide.
          Conjugate
          Unconjugated
          Formulation
          Phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
          Storage
          Store at -20°C. Avoid freeze / thaw cycles.
          Concentration
          1.0 mg/mL
          Antigen
          p50;KBF1;NF-kB1;NFKB-p50;NFkappaB (Gene ID:4790; UniProt:P19838)

          * This product is for Research Use Only.

      • Applications
        • Application
          WB; IHC; IF
        • Application Dilutions
          WB 1:500
          IHC 1:50-1:100
          IF 1:100-1:200

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