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Email: info@nsjbio.com
- Tel: 858.663.9055
- Email: info@nsjbio.com
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RNA binding fox-1 homolog 3 (RBFOX3), commonly known as NeuN, is a neuron-specific nuclear protein widely used as a marker for mature neurons in the central and peripheral nervous systems. NeuN Antibody / RBFOX3 N-Terminal Epitope Antibody (clone RM312) is designed to recognize an N-terminal region of the RBFOX3 protein, providing an alternative detection profile compared to antibodies targeting other domains. NeuN antibody, also referred to as RBFOX3 antibody or neuronal nuclei marker antibody in the literature, is extensively used in studies of neurodevelopment, neuronal identity, and neuroanatomy.
RBFOX3 belongs to the FOX family of RNA-binding proteins that regulate alternative splicing of pre-mRNA transcripts. Through this function, NeuN contributes to neuron-specific gene expression programs and maintenance of neuronal phenotype. Its expression is largely restricted to post-mitotic neurons, making it a reliable marker for distinguishing neuronal populations from glial and other non-neuronal cell types.
The N-terminal region of RBFOX3 contains structural and regulatory elements that may influence protein stability, localization, or interactions with RNA and protein partners. Antibodies targeting this region can provide complementary detection compared to those recognizing central or C-terminal domains, which may be useful when evaluating protein conformation, isoform variation, or differential accessibility in fixed tissues and cell-based assays.
In immunohistochemistry, NeuN is typically observed as strong nuclear staining in neuronal cell bodies, with occasional cytoplasmic labeling depending on cell type and physiological context. This staining pattern enables clear visualization of neuronal architecture and is widely used for assessing neuronal density and tissue organization. Differences in staining intensity or distribution between antibodies may reflect epitope accessibility or fixation-dependent masking of specific regions of the protein.
Western blot analysis of RBFOX3 generally detects bands in the range of approximately 46-48 kDa, corresponding to known isoforms of the protein. Detection profiles may vary slightly depending on the epitope targeted and the conformational state of the protein in the sample.
The recombinant rabbit monoclonal clone RM312 antibody provides reliable detection of RBFOX3 with specificity for an N-terminal epitope. Its use offers an alternative and complementary approach to established NeuN antibodies, supporting robust evaluation of neuronal populations across multiple experimental conditions. This antibody is suitable for detecting RBFOX3 expression in research applications involving neuronal identification, neurodevelopmental studies, and analysis of neural tissue structure.
For a reference NeuN antibody supporting consistent detection of RBFOX3 in neuronal studies, see clone AO-18.
The stated application concentrations are suggested starting points. Titration of the NeuN Antibody / RBFOX3 N-Terminal Epitope Antibody may be required due to differences in protocols and secondary/substrate sensitivity.
A peptide corresponding to the N-terminus of human NeuN/RBFOX3 was used as the immunogen for the recombinant NeuN antibody.
Store the NeuN antibody at -20oC.
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