Anti-NFkB p105 / p50 (phospho S337) antibody (ab28849)
Key features and details
- Rabbit polyclonal to NFkB p105 / p50 (phospho S337)
- Suitable for: WB, IHC-P, ELISA
- Reacts with: Mouse, Rat, Human
- Isotype: IgG
Overview
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Product name
Anti-NFkB p105 / p50 (phospho S337) antibody
See all NFkB p105 / p50 primary antibodies -
Description
Rabbit polyclonal to NFkB p105 / p50 (phospho S337) -
Host species
Rabbit -
Tested applications
Suitable for: WB, IHC-P, ELISAmore details -
Species reactivity
Reacts with: Mouse, Rat, Human -
Immunogen
Synthetic peptide corresponding to Human NFkB p105/ p50 (phospho S337).
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General notes
The Life Science industry has been in the grips of a reproducibility crisis for a number of years. Abcam is leading the way in addressing this with our range of recombinant monoclonal antibodies and knockout edited cell lines for gold-standard validation. Please check that this product meets your needs before purchasing.
If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, along with publications, customer reviews and Q&As
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. -
Storage buffer
pH: 7.40
Preservative: 0.02% Sodium azide
Constituents: 50% Glycerol (glycerin, glycerine), 0.87% Sodium chloride
Without Mg2+ and Ca2+ -
Concentration information loading...
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Purity
Immunogen affinity purified -
Purification notes
This antibody was affinity purified from rabbit antiserum by affinity chromatography using epitope specific phosphopeptide. The antibody against non phosphopeptide was removed by chromatography using non phosphopeptide corresponding to the phosphorylation site. -
Clonality
Polyclonal -
Isotype
IgG -
Research areas
Associated products
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Compatible Secondaries
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Isotype control
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab28849 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Application | Abreviews | Notes |
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WB |
1/200 - 1/500. Predicted molecular weight: 106 kDa.
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IHC-P |
Use at an assay dependent concentration.
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ELISA |
Use at an assay dependent concentration.
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Notes |
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WB
1/200 - 1/500. Predicted molecular weight: 106 kDa. |
IHC-P
Use at an assay dependent concentration. |
ELISA
Use at an assay dependent concentration. |
Target
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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. -
Sequence similarities
Contains 7 ANK repeats.
Contains 1 death domain.
Contains 1 RHD (Rel-like) domain. -
Domain
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. -
Post-translational
modificationsWhile 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.
Phosphorylation at 'Ser-903' and 'Ser-907' primes p105 for proteolytic processing in response to TNF-alpha stimulation. Phosphorylation at 'Ser-927' and 'Ser-932' are required for BTRC/BTRCP-mediated proteolysis.
Polyubiquitination seems to allow p105 processing.
S-nitrosylation of Cys-61 affects DNA binding. -
Cellular localization
Nucleus. Cytoplasm. Nuclear, but also found in the cytoplasm in an inactive form complexed to an inhibitor. - Information by UniProt
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Database links
- Entrez Gene: 4790 Human
- Entrez Gene: 18033 Mouse
- Entrez Gene: 81736 Rat
- Omim: 164011 Human
- SwissProt: P19838 Human
- SwissProt: P25799 Mouse
- SwissProt: Q63369 Rat
- Unigene: 618430 Human
see all -
Alternative names
- DKFZp686C01211 antibody
- DNA binding factor KBF1 antibody
- DNA binding factor KBF1 EBP1 antibody
see all
Images
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Ab28849, at a dilution of 1/50, staining p105 in paraffin embedded human breast carcinoma tissue by Immunohistochemistry.
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All lanes : Anti-NFkB p105 / p50 (phospho S337) antibody (ab28849)
Lane 1 : Untreated extracts from MDA-MB-435 cells (5-30ug).
Lane 2 : Extracts from MDA-MB-435 cells (5-30ug) treated with synthesized phosphopeptide.
Predicted band size: 106 kDa
Observed band size: 118 kDa why is the actual band size different from the predicted?
Protocols
Datasheets and documents
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SDS download
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Datasheet download
References (25)
ab28849 has been referenced in 25 publications.
- Guo A et al. Overexpression of lncRNA IRAIN restrains the progression and Temozolomide resistance of glioma via repressing IGF-1R-PI3K-NF-κB signaling pathway. Histol Histopathol 37:543-554 (2022). PubMed: 35102541
- Huang D et al. Casticin protected against neuronal injury and inhibited the TLR4/NF-?B pathway after middle cerebral artery occlusion in rats. Pharmacol Res Perspect 9:e00752 (2021). PubMed: 33704926
- Zhang L et al. The anti-breast cancer property of physcion via oxidative stress-mediated mitochondrial apoptosis and immune response. Pharm Biol 59:303-310 (2021). PubMed: 33715588
- Chen X et al. GLP-1 alleviates NLRP3 inflammasome-dependent inflammation in perivascular adipose tissue by inhibiting the NF-?B signalling pathway. J Int Med Res 49:300060521992981 (2021). PubMed: 33641439
- Zhang X et al. miR-139-5p protects septic mice with acute lung injury by inhibiting Toll-like receptor 4/Myeloid differentiation factor 88/Nuclear factor-&mac_kgr;B signaling pathway. Clinics (Sao Paulo) 76:e2484 (2021). PubMed: 33681946