NFkB p50 Recombinant Protein | NFkB recombinant protein

Recombinant NFkB p50 protein

Cat. Num. AAA388004

• Gene Names: NFKB1; p50; KBF1; p105; EBP-1; NF-kB1; NFKB-p50; NFkappaB; NF-kappaB; NFKB-p105; NF-kappa-B
• Purity: Protein was purified by affinity chromatography, followed by gel filtration.
• Synonyms: NFkB p50; Recombinant NFkB p50 protein; p50; KBF1; p105; EBP-1; NF-kB1; NFKB-p50; NFkappaB; NF-kappaB; NFKB-p105; NF-kappa-B; NFkB recombinant protein

• Host: E Coli
• Purity/Purification: Protein was purified by affinity chromatography, followed by gel filtration.
• Form/Format: 5ug of Recombinant NFkB p50 protein, 1X Protein Dilution Buffer (20mM Tris-HCl, 0.2 M NaCl, 2mMmgCl2 and 10% glycerol) and 1 M DTT. Protein is supplied at 100 ng/ul in Protein Dilution Buffer.

• Protein Species: Human
• Tag: His-Tag
• Notes: Recombinant NFkB p50 is suitable for both gelshift and TransAM assays. The standard curve for TransAM NFkB p50 was generated using the range of 10-0.156ng of protein. This protein is not recommended for Western blotting. NOTE: The presence of Poly [d(I-C)] in buffers may affect protein functionality and should be avoided.
• Dry Ice Shipment: Extra charge fee may add to your shipping cost as dry ice is required to ship this product.
• Preparation and Storage: Recombinant proteins in solution are temperature sensitive and must be stored at -80 degree C to prevent degradation. Avoid repeated freeze/thaw cycles and keep on ice when not in storage.; Shipping Temp: Dry Ice

ELISA (EIA)

(TransAM standard curve generated using Recombinant NFkB p50 protein. The standard curve for TransAM was generated using a range of 10 - 0.156 ng of protein and run on the TransAM NFkB p50 ELISA Kit.)

Related Product Information for NFkB recombinant protein

Short Description: Recombinant NFkB p50 protein was expressed from a full-length cDNA clone in E Coli (accession number P19838). Protein was purified by affinity chromatography, followed by gel filtration. NFkB p50, is a subunit of the NFkB transcription factor complex that plays a significant role in the regulation of genes that control various biological processes, including inflammation, differentiation, tumorigenesis, and cell growth and survival. NFkB is comprised of homo- or heterodimers of different subunits of the structurally related Rel family of transcription factors that includes p50 (NF-kB1), p52 (NF-kB2), p65 (RelA), RelB and c-Rel. p65, RelB and c-Rel contain a transactivation domain (TD) in their C-termini, which is required for the transport of active NFkB complexes into the nucleus. In contrast, subunits p50 and p52 do not contain transactivation domains; they are unable to transactivate on their own and must form heterodimers with p65, RelB or c-Rel. The p50/p65 heterodimers and the p50 homodimers are the most common dimers found in the NFkB signaling pathway. Inactive NFkB dimers are sequestered in the cytoplasm of cells by the IkB family of inhibitory proteins. Activation of NFkB by external inducers such as lipopolysaccharide, TNF or IL-1, results in the phosphorylation and degradation of the IkB proteins. This releases NFkB dimers, which subsequently translocate to the nucleus where they activate appropriate target genes. Recombinant NFkB p50 is suitable for both gelshift and TransAM assays.

Background: NFkB p50, is a subunit of the NFkB transcription factor complex that plays a significant role in the regulation of genes that control various biological processes, including inflammation, differentiation, tumorigenesis, and cell growth and survival. NFkB is comprised of homo- or heterodimers of different subunits of the structurally related Rel family of transcription factors that includes p50 (NF-kB1), p52 (NF-kB2), p65 (RelA), RelB and c-Rel. p65, RelB and c-Rel contain a transactivation domain (TD) in their C-termini, which is required for the transport of active NFkB complexes into the nucleus. In contrast, subunits p50 and p52 do not contain transactivation domains; they are unable to transactivate on their own and must form heterodimers with p65, RelB or c-Rel. The p50/p65 heterodimers and the p50 homodimers are the most common dimers found in the NFkB signaling pathway. Inactive NFkB dimers are sequestered in the cytoplasm of cells by the IkB family of inhibitory proteins. Activation of NFkB by external inducers such as lipopolysaccharide, TNF or IL-1, results in the phosphorylation and degradation of the IkB proteins. This releases NFkB dimers, which subsequently translocate to the nucleus where they activate appropriate target genes.

Product Categories/Family for NFkB recombinant protein

Recombinant Proteins; Transcription

NCBI and Uniprot Product Information

• NCBI GI #: 259155302
• NCBI GeneID: 4790
• NCBI Accession #: NP_001158884.1
• NCBI GenBank Nucleotide #: NM_001165412.1
• UniProt Accession #: P19838; Q68D84; Q86V43; Q8N4X7; Q9NZC0; A8K5Y5; B3KVE8
• Molecular Weight: 105,356 Da
• NCBI Official Full Name: nuclear factor NF-kappa-B p105 subunit isoform 2
• NCBI Official Synonym Full Names: nuclear factor of kappa light polypeptide gene enhancer in B-cells 1
• NCBI Official Symbol: NFKB1
• NCBI Official Synonym Symbols: p50; KBF1; p105; EBP-1; NF-kB1; NFKB-p50; NFkappaB; NF-kappaB; NFKB-p105; NF-kappa-B
• NCBI Protein Information: nuclear factor NF-kappa-B p105 subunit; NF-kappabeta; DNA binding factor KBF1; DNA-binding factor KBF1; nuclear factor NF-kappa-B p50 subunit; nuclear factor kappa-B DNA binding subunit
• UniProt Protein Name: Nuclear factor NF-kappa-B p105 subunit
• UniProt Gene Name: NFKB1
• UniProt Entry Name: NFKB1_HUMAN

NCBI Description

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. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

Uniprot Description

NFkB-p105: a transcription factor of the nuclear factor-kappaB ( NFkB) group. Undergoes 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 NFkB. 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. There are five NFkB proteins in mammals (RelA/NFkB-p65, RelB, c-Rel, NF-_B1/NFkB-p105, and NF-_B2/NFkB-p100). They form a variety of homodimers and heterodimers, each of which activates its own characteristic set of genes. Two alternatively spliced isoforms have been described.

Protein type: Transcription factor; DNA-binding

Chromosomal Location of Human Ortholog: 4q24

Cellular Component: nucleoplasm; mitochondrion; cytoplasm; nucleus; cytosol

Molecular Function: protein binding; protein homodimerization activity; protein heterodimerization activity; heat shock protein binding; double-stranded DNA binding; chromatin binding; transcription factor activity; transcription factor binding

Biological Process: transcription from RNA polymerase II promoter; I-kappaB kinase/NF-kappaB cascade; nerve growth factor receptor signaling pathway; apoptosis; negative regulation of cholesterol transport; positive regulation of transcription, DNA-dependent; negative regulation of cellular protein metabolic process; toll-like receptor 3 signaling pathway; negative regulation of transcription from RNA polymerase II promoter; T cell receptor signaling pathway; activation of NF-kappaB transcription factor; toll-like receptor 10 signaling pathway; toll-like receptor 5 signaling pathway; positive regulation of interferon type I production; inflammatory response; toll-like receptor 4 signaling pathway; membrane protein intracellular domain proteolysis; MyD88-independent toll-like receptor signaling pathway; negative regulation of interleukin-12 biosynthetic process; toll-like receptor 2 signaling pathway; MyD88-dependent toll-like receptor signaling pathway; response to copper ion; negative regulation of inflammatory response; toll-like receptor signaling pathway; innate immune response; positive regulation of transcription from RNA polymerase II promoter; toll-like receptor 9 signaling pathway; response to oxidative stress; negative regulation of apoptosis