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RBFOX3/NeuN Antibody (1B7)

Novus Biologicals, part of Bio-Techne | Catalog # NBP1-92693

Novus Biologicals, part of Bio-Techne

Key Product Details

Species Reactivity

Validated:

Human, Mouse, Rat

Cited:

Human, Mouse, Rat

Applications

Validated:

CyTOF-ready, Flow (Intracellular), Flow Cytometry, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin, Western Blot

Cited:

Block/Neutralize, Chromatin Immunoprecipitation (ChIP), Flow Cytometry, IF/IHC, Immunocytochemistry/ Immunofluorescence, Immunofluorescence, Immunohistochemistry, Immunohistochemistry Free-Floating, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin, In vivo assay, Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG2b Kappa Clone # 1B7

Concentration

1 mg/ml

Product Specifications

Immunogen

N-terminal 99 amino acids of human FOX3 as expressed in and purified from E. coli

Localization

Nucleus. Cytoplasm.

Marker

Neuronal Marker

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2b Kappa

Theoretical MW

33.8 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for RBFOX3/NeuN Antibody (1B7)

Immunohistochemical Staining of RBFOX3/NeuN in Paraffin Embedded Rat Brain Stem

Immunohistochemical Staining of RBFOX3/NeuN in Paraffin Embedded Rat Brain Stem

Formalin fixed rat brain stem neurons stained with to NeuN in green and counter stained with , our chicken polyclonal antibody to microtubule associated protein 2 in red. The nuclei of cells are revealed with DAPI in blue. The antibody reveals strong nuclear and distal cytoplasmic staining for Fox3/NeuN and the complete absence of staining of other cell types. The MAP2 antibody binds to dendrites and overlaps with Fox3 staining in perikarya. This Fox3/NeuN antibody is therefore an excellent marker of neuronal cells.
Immunohistochemical Staining of RBFOX3/NeuN in Mouse Spinal Cords

Immunohistochemical Staining of RBFOX3/NeuN in Mouse Spinal Cords

Spinal cords from 60 days old nalve nontransgenic mice (endogenous) and transgenic mice overexpressing human WT- SOD1 were analyzed by immunohistochemistry for cellular distribution of activated p38 MAPK. Low magnification (10X objective) images of lumbar spinal cord double-labeled with a neuronal marker (NeuN, in green) and activated p38 MAPK (pP38, in red). Image collected and cropped by CiteAb from the following publication (https://dx.plos.org/10.1371/journal.pone.0065235), licensed under a CC-BY license.
Western Blot Detection of RBFOX3/NeuN Mouse and Rat Brain Tissue Lysates

Western Blot Detection of RBFOX3/NeuN Mouse and Rat Brain Tissue Lysates

Analysis of whole brain tissue lysates using mouse mAb to FOX3/NeuN NBP1-92693, dilution 1:1,000 in green: [1] protein standard (red), [2] adult rat brain, [3] embryonic E20 rat brain, [4] adult mouse brain. Note the strong twin bands corresponding to the two alternate transcripts of FOX3/NeuN protein with apparent SDS-PAGE molecular weights of 46 and 48kDa. As with other FOX3/NeuN antibodies, an additional band at ~70kDa is revealed in some lysates.

Applications for RBFOX3/NeuN Antibody (1B7)

Application
Recommended Usage

Flow Cytometry

1:10

Immunocytochemistry/ Immunofluorescence

1:500-1:1000

Immunohistochemistry

1:400

Immunohistochemistry-Frozen

Reported in scientific literature (PMID: 30654114/ 23776455)

Western Blot

1:5000-1:10000
Application Notes
This RBFOX3/Neun (1B7) antibody is useful for Immunocytochemistry/Immunofluorescence, Immunohistochemistry, and Western blot, where bands can be seen at 46 and 48 kDa. Flow Cytometry was reported in verified customer review using Alexa Fluor 700 conjugated form of this antibody, NBP1-92693AF700. This antibody is CyTOF ready.
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Reviewed Applications

Read 2 reviews rated 4.5 using NBP1-92693 in the following applications:

Formulation, Preparation, and Storage

Purification

Immunogen affinity purified

Formulation

50% PBS, 50% glycerol

Preservative

0.035% Sodium Azide

Concentration

1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: RBFOX3/NeuN

Rbfox3 (also known as Fox-3, Fox1 homolog C, Hrnbp3, and D11Bwg0517e) is one of three mammalian members of the RNA-binding protein Rbfox gene family, all of which are involved in regulating alternative RNA splicing. Originally identified as an epitope, NeuN is located within the N-terminal region (6-15 amino acids) of Rbfox3. Rbfox family members are highly conserved, having a single RNA recognition motif (RRM)-type RNA binding domain (RBD) near the center of the protein sequence. The RBD amino acid (aa) sequence is identical between members, Rbfox1 and Rbfox2, with 4 differences within the 77 aa domain of Rbfox3. The fox3 gene is comprised of 15 exons in humans, 11 exons in rat, with 3 variants in mouse containing 14 exons and another 3 variants containing 15 exons. The Rbfox3 protein is highly conserved across human, mouse, and rat with 98.9% sequence identity between mouse (isoform I) and rat and 83.9% sequence identity between mouse (isoform I) and human. The expression of Rbfox3/NeuN is restricted to the nervous system and has widely been used in stroke research. It is recognized as a marker of mature neuronal cell types in the spinal cord, cerebral cortex, hippocampus, dorsal thalamus, caudate/putamen, and cerebellum. NeuN has been shown to bind DNA and is predominantly nuclear. Differences in immunoreactivity have been reported between Rbfox3/NeuN subtypes in which the 46kDa is mainly found in the nucleus whereas the 48kDa form is primarily distributed in the cytoplasm (1,2).

Rbfox proteins participate in regulation of alternative splicing between family members as well as in autoregulation. While the breadth of brain and muscle specific targets for alternative splicing is well established for Rbfox proteins, those specific to Rbfox3/NeuN along with its alternative splicing mechanism are less understood. Rbfox3 has been shown to regulate neuronal differentiation by alternative splicing of Numb pre-mRNA and has a role in adult neurogenesis. Dysfunctional Rbfox3/NeuN has been associated with various neurological disorders such as neurodevelopmental delay, autism spectrum disorder, Benign rolandic epilepsy (BRE), and cognitive impairments (1,2).

References

1. Duan W, Zhang YP, Hou Z, Huang C, Zhu H, Zhang CQ, Yin Q. (2016) Novel Insights into NeuN: from Neuronal Marker to Splicing Regulator. Mol Neurobiol. 53(3):1637-1647. PMID: 25680637.

2. Su CH, D D, Tarn WY. (2018) Alternative Splicing in Neurogenesis and Brain Development. Front Mol Biosci. 5:12. PMID: 29484299

Long Name

RNA binding fox-1 homolog 3

Alternate Names

FOX-3, FOX3, HRNBP3, NEUN, NeuN flow cytometry

Entrez Gene IDs

146713 (Human)

Gene Symbol

RBFOX3

UniProt

Additional RBFOX3/NeuN Products

Product Documents for RBFOX3/NeuN Antibody (1B7)

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for RBFOX3/NeuN Antibody (1B7)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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