Cat. No.: IBDA-433531
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Online InquiryTarget Information
| Target Name | NFkB p105/p50 |
| Uniprot ID | P19838 |
| Cellular Localization | Nucleus. Cytoplasm. Nuclear, but also found in the cytoplasm in an inactive form complexed to an inhibitor. |
| Immunogen | Recombinant fragment. |
| Function | NF-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 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. |
Product Details
| Description | Rabbit monoclonal antibody to NFkB p105 / p50 - BSA and Azide Free. |
| Host Species | Rabbit |
| Clonality | Monoclonal |
| Purity | Protein A purified |
| Isotype | IgG |
| Conjugation | Unconjugated |
| Reactivity | Human |
| Immunogen | Recombinant fragment. |
| Positive Control | WB: Wild-type HAP1 and HeLa whole cell lysate. Human heart tissue lysate. IHC-P: Human prostate hyperplasia, Human tonsil, Human colon cancer and Human liver tissue. IP: HAP1 cells. |
| Application | IHC-P, IP, WB |
Storage & Handling
| Shipping | Shipped at 4 °C. |
| Storage | Store at 4 °C |
| Storage Buffer | pH: 7.2 Constituent: 100% PBS |