| Description | |
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| Catalogue Number | 13-118 |
| Brand Family | Upstate |
| Trade Name |
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| Description | GST-NFκB p50 subunit (δ434-969) |
| Overview | N-terminal GST-tagged, recombinant human NFkB, p50 subunit (D434-969), expressed in E. coli. Purified using glutathione agarose chromatography. MW = 74kDa. |
| Product Information | |
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| Presentation | 50mM Tris-HCl, pH 7.5, 150mM NaCl, 0.1mM EGTA, 0.1% βmercaptoethanol, 0.03% Brij-35, 0.2mM PMSF, 1mM benzamidine and 50% glycerol |
| Quality Level | MQ100 |
| Applications | |
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| Application | N-terminal GST-tagged, recombinant human NFkB, p50 subunit (D434-969), expressed in E. coli. Purified using glutathione agarose chromatography. |
| Application Notes | DNA Binding Assay |
| Biological Information | |
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| Entrez Gene Number |
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| Entrez Gene Summary | This gene encodes a 105 kD protein which can undergo cotranslational processing by the 26S proteasome to produce a 50 kD protein. The 105 kD protein is a Rel protein-specific transcription inhibitor and the 50 kD protein is a DNA binding subunit of the NF-kappa-B (NFKB) protein complex. NFKB is a transcription regulator that is activated by various intra- and extra-cellular stimuli such as cytokines, oxidant-free radicals, ultraviolet irradiation, and bacterial or viral products. Activated NFKB translocates into the nucleus and stimulates the expression of genes involved in a wide variety of biological functions. Inappropriate activation of NFKB has been associated with a number of inflammatory diseases while persistent inhibition of NFKB leads to inappropriate immune cell development or delayed cell growth. |
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| UniProt Number |
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| UniProt Summary | FUNCTION: SwissProt: P19838 # Appears to have dual functions such as cytoplasmic retention of attached NF-kappa-B proteins 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. Plays a role in the regulation of apoptosis. SIZE: 968 amino acids; 105356 Da SUBUNIT: Active NF-kappa-B is a heterodimer of an about 50 kDa DNA-binding subunit and the weak DNA-binding subunit p65. Two heterodimers might form a labile tetramer. Also interacts with MAP3K8. NF-kappa-B p50 subunit interacts with NCOA3 coactivator, which may coactivate NF-kappa-B dependent expression via its histone acetyltransferase activity. Interacts with DSIPI; this interaction prevents nuclear translocation and DNA-binding. Interacts with SPAG9 and UNC5CL. SUBCELLULAR LOCATION: Nucleus. Cytoplasm. Note=Nuclear, but also found in the cytoplasm in an inactive form complexed to an inhibitor (I-kappa-B). DOMAIN: SwissProt: P19838 The C-terminus of p105 might be involved in cytoplasmic retention, inhibition of DNA-binding, and transcription activation. & Glycine-rich region (GRR) appears to be a critical element in the generation of p50. PTM: While translation occurs, the particular unfolded structure after the GRR repeat promotes the generation of p50 making it an acceptable substrate for the proteasome. This process is known as cotranslational processing. The processed form is active and the unprocessed form acts as an inhibitor (I kappa B-like), being able to form cytosolic complexes with NF-kappa B, trapping it in the cytoplasm. Complete folding of the region downstream of the GRR repeat precludes processing. & Polyubiquitination seems to allow p105 processing. SIMILARITY: Contains 7 ANK repeats. & Contains 1 death domain. & Contains 1 RHD (Rel-like) domain. |
| Product Usage Statements | |
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| Quality Assurance | routinely evaluated in a DNA binding assay |
| Usage Statement |
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| Storage and Shipping Information | |
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| Storage Conditions | 1 year at -20°C |
| Packaging Information | |
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| Material Size | 50 µg |