Anti-activated Notch1 antibody (ab8925)
- Datasheet
- Specific References (127)
- Protocols
Overview
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Product nameAnti-activated Notch1 antibody
See all activated Notch1 primary antibodies -
DescriptionRabbit polyclonal to activated Notch1
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Host speciesRabbit
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Tested applicationsSuitable for: IHC-P, IHC-Fr, ICC/IF, WB, Flow Cytmore details
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Species reactivityReacts with: Mouse, Human
Predicted to work with: Rat
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Immunogen
Synthetic peptide corresponding to activated Notch1 aa 1755-1767 (intracellular). The epitope is only exposed after gamma secretase cleavage and is not accessible in the uncleaved form.
Sequence:VLLSRKRRRQHGQC
(Peptide available asab730) -
Positive control
- Transiently transfected 293 cells expressing recombinant myc-tagged mouse Notch constructs (see image)
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General notes
Notch is synthesized in the endoplasmic reticulum as an inactive form which is proteolytically cleaved by a furin-like convertase (S1 cleavage) in the trans-golgi network before it reaches the plasma membrane to yield an active, ligand-accessible form. Cleavage results in a C-terminal fragment N(TM) and a N-terminal fragment N(EC). Following ligand binding, it is cleaved (S2 cleavage) by TNF-alpha converting enzyme (TACE) to yield a membrane-associated intermediate fragment called Notch extracellular truncation (NEXT). This fragment is then cleaved by presenilin-dependent gamma-secretase (S3 cleavage) to release the intracellular domain (NICD) from the membrane.
Properties
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FormLiquid
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Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
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Storage bufferPreservative: 0.1% Sodium azide
Constituents: 0.4% Potassium phosphate, 0.87% Sodium chloride -
PurityWhole antiserum
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Purification notesLabel may show concentration. This is total protein concentration. Total and specific IgG concentration have not been determined.
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Primary antibody notesNotch is synthesized in the endoplasmic reticulum as an inactive form which is proteolytically cleaved by a furin-like convertase (S1 cleavage) in the trans-golgi network before it reaches the plasma membrane to yield an active, ligand-accessible form. Cleavage results in a C-terminal fragment N(TM) and a N-terminal fragment N(EC). Following ligand binding, it is cleaved (S2 cleavage) by TNF-alpha converting enzyme (TACE) to yield a membrane-associated intermediate fragment called Notch extracellular truncation (NEXT). This fragment is then cleaved by presenilin-dependent gamma-secretase (S3 cleavage) to release the intracellular domain (NICD) from the membrane.
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ClonalityPolyclonal
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IsotypeIgG
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Research areas
Associated products
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Compatible Secondaries
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Immunizing Peptide (Blocking)
Applications
Our Abpromise guarantee covers the use of ab8925 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 |
|---|---|---|
| IHC-P | 1/200. | |
| IHC-Fr | Use at an assay dependent concentration. PubMed: 18371421 | |
| ICC/IF | Use at an assay dependent concentration. | |
| WB | 1/500. Detects a band of approximately 80 kDa.Can be blocked with Human activated Notch1 peptide (ab730). 80kDa band is a cleavage product of Notch 1. There is also a contaminating band present at 100 kDa. The identity of this band is unknown. | |
| Flow Cyt | Use at an assay dependent concentration. PubMed: 19171875 ab171870 - Rabbit polyclonal IgG, is suitable for use as an isotype control with this antibody. |
Target
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FunctionFunctions as a receptor for membrane-bound ligands Jagged1, Jagged2 and Delta1 to regulate cell-fate determination. Upon ligand activation through the released notch intracellular domain (NICD) it forms a transcriptional activator complex with RBPJ/RBPSUH and activates genes of the enhancer of split locus. Affects the implementation of differentiation, proliferation and apoptotic programs. May be important for normal lymphocyte function. In altered form, may contribute to transformation or progression in some T-cell neoplasms. Involved in the maturation of both CD4+ and CD8+ cells in the thymus. May be important for follicular differentiation and possibly cell fate selection within the follicle. During cerebellar development, may function as a receptor for neuronal DNER and may be involved in the differentiation of Bergmann glia. Represses neuronal and myogenic differentiation. May enhance HIF1A function by sequestering HIF1AN away from HIF1A.
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Tissue specificityIn fetal tissues most abundant in spleen, brain stem and lung. Also present in most adult tissues where it is found mainly in lymphoid tissues.
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Involvement in diseaseDefects in NOTCH1 are a cause of aortic valve disease 1 (AOVD1) [MIM:109730]. A common defect in the aortic valve in which two rather than three leaflets are present. It is often associated with aortic valve calcification and insufficiency. In extreme cases, the blood flow may be so restricted that the left ventricle fails to grow, resulting in hypoplastic left heart syndrome.
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Sequence similaritiesBelongs to the NOTCH family.
Contains 5 ANK repeats.
Contains 36 EGF-like domains.
Contains 3 LNR (Lin/Notch) repeats. -
Post-translational
modificationsSynthesized in the endoplasmic reticulum as an inactive form which is proteolytically cleaved by a furin-like convertase in the trans-Golgi network before it reaches the plasma membrane to yield an active, ligand-accessible form. Cleavage results in a C-terminal fragment N(TM) and a N-terminal fragment N(EC). Following ligand binding, it is cleaved by TNF-alpha converting enzyme (TACE) to yield a membrane-associated intermediate fragment called notch extracellular truncation (NEXT). Following endocytosis, this fragment is then cleaved by presenilin dependent gamma-secretase to release a notch-derived peptide containing the intracellular domain (NICD) from the membrane.
Phosphorylated.
O-glycosylated on the EGF-like domains. Contains both O-linked fucose and O-linked glucose.
Ubiquitinated; undergoes 'Lys-29'-linked polyubiquitination catalyzed by ITCH. Monoubiquitination at Lys-1759 is required for activation by gamma-secretase cleavage, it promotes interaction with AAK1, which stabilizes it. Deubiquitination by EIF3F is necessary for nuclear import of activated Notch.
Hydroxylated at Asn-1955 by HIF1AN. Hydroxylated at Asn-2022 by HIF1AN (By similarity). Hydroxylation reduces affinity for HI1AN and may thus indirectly modulate negative regulation of NICD. -
Cellular localizationCell membrane and Nucleus. Following proteolytical processing NICD is translocated to the nucleus.
- Information by UniProt
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Database links
- Entrez Gene: 4851 Human
- Entrez Gene: 18128 Mouse
- Entrez Gene: 25496 Rat
- Omim: 190198 Human
- SwissProt: P46531 Human
- SwissProt: Q01705 Mouse
- SwissProt: Q07008 Rat
- Unigene: 495473 Human
see all -
Alternative names
- hN1 antibody
- Neurogenic locus Notch homolog protein 1 antibody
- NICD antibody
see all
Images
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Immunocytochemistry/ Immunofluorescence - Anti-activated Notch1 antibody (ab8925)This image is courtesy of an anonymous Abreviewab8925 staining actived Notch1 in the NIH3T3 fibroblast cell line from Mouse embryo by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with paraformaldehyde, permeabilized with Triton X-100 0.1% and blocked with 10% serum for 30 minutes at 24°C. Samples were incubated with primary antibody (1/100) for 16 hours at 4°C. An Alexa Fluor®488-conjugated Donkey anti-rabbit IgG polyclonal(1/500) was used as the secondary antibody.
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Western blot - Anti-activated Notch1 antibody (ab8925)This image is courtesy of Stacey Huppert, Ma. Xenia U. Garcia (lab of Raphael Kopan)Rabbit polyclonal (ab8925) at 1/500, against myc-tagged transiently transfected mouse Notch constructs in 293 cells.
Lane M: Mol wt markers
Lane 1 No transfection
Lane 2 N1 (mouse deleted extracellular domain)-myc
Lane 3 N1 (mouse intracellular domain)-myc
Lane 4 N2 (mouse deleted extracellular domain)-myc
Lane 5 N2 (mouse intracellular domain)-mycLane 6 N3 (mouse deleted extracellular domain)-myc
Lane 7 N3 (mouse intracellular domain)-myc
Lane 8 N4 (mouse deleted extracellular domain)-myc
Lane 9 N4 (mouse intracellular domain)-myc
Lane 10 N1 (mouse deleted extracellular domain)(V to G)-mycRabbit polyclonal (ab8925) at 1/500, against myc-tagged transiently transfected mouse Notch constructs in 293 cells.
Lane M: Mol wt markers
Lane 1 No transfection
Lane 2 N1 (mouse deleted extracellular domain)-myc
Lane 3 N1 (mouse intracellular domain)-myc
Lane 4 N2 (mouse deleted extracellular domain)-myc
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Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-activated Notch1 antibody (ab8925)ab8925 (1:500) diluted staining activated Notch1 in human ovarian carcinoma using an automated system (DAKO Autostainer Plus). Using this protocol there is strong staining of activated Notch 1 in nuclear/nucleolar compartments of the ovarian cortex.
Sections were rehydrated and antigen retrieved with the Dako 3 in 1 AR buffer citrate pH6.1 in a DAKO PT link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 mins. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS) then incubated with primary antibody for 20 min and detected with Dako envision flex amplification kit for 30 minutes. Colorimetric detection was completed with Diaminobenzidine for 5 minutes. Slides were counterstained with Haematoxylin and coverslipped under DePeX. Please note that, for manual staining, optimization of primary antibody concentration and incubation time is recommended. Signal amplification may be required. -
Immunohistochemistry (Frozen sections) - Anti-activated Notch1 antibody (ab8925)Image courtesy of an anonymous Abreview.ab8925 staining activated Notch 1 in murine dermis (including follicle) by Immunohistochemistry (Frozen sections). Tissue was fixed with paraformaldehyde and permeabilized using 0.1% Triton. Samples were then blocked with 10% serum for 1 hour at 19°C followed by incubation with the primary antibody at a 1/100 dilution for 16 hours at 4°C. An Alexa Fluor® conjugated donkey anti-rabbit polyclonal was used as secondary antibody at a 1/200 dilution. Counterstain DAPI (blue).
Protocols
References
This product has been referenced in:
- Lu Y et al. Effect of midkine on gemcitabine resistance in biliary tract cancer. Int J Mol Med 41:2003-2011 (2018). Read more (PubMed: 29344648) »
- Xiong S et al. Cancer-associated fibroblasts promote stem cell-like properties of hepatocellular carcinoma cells through IL-6/STAT3/Notch signaling. Am J Cancer Res 8:302-316 (2018). Read more (PubMed: 29511600) »
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