Biological Strategies: Western Blot: c-Fos Antibody (2H2) [NBP2-50037] - Top panel: Analysis of c-Fos expression in HeLa cells using NBP2-50037. Lane 1: HeLa cells were serum-starved for 36 hours. Lane 2: ...read more
Immunocytochemistry/ Immunofluorescence: c-Fos Antibody (2H2) [NBP2-50037] - Section of rat hippocampus stained with mouse monoclonal antibody to c-FOS NBP2-50037 in red and counterstained with rabbit polyclonal ...read more
Genetic Strategies: Knockout Validated: c-Fos Antibody (2H2) [NBP2-50037] - Western blot shows lysates of HeLa human cervical epithelial carcinoma parental cell line and c-Fox knockout (KO) HeLa cell line. PVDF ...read more
Western Blot: c-Fos Antibody (2H2) [NBP2-50037] - Analysis of cell lysates using mouse c-Fos mAb, dilution 1:1,000 (Green), and rabbit GAPDH pAb, dilution 1:20,000 (Red) used as a loading control.  protein standard ...read more
Immunohistochemistry: c-Fos Antibody (2H2) [NBP2-50037] - pAb 1:1000 (green), DAPI counterstain (blue) on 30 micron cryosection of mouse spinal cord. This image was submitted via customer Review.
Immunocytochemistry/ Immunofluorescence: c-Fos Antibody (2H2) [NBP2-50037] - Left: NBP2-50037 staining (green) in HeLa cells, which were treated with serum-starvation for 36 hrs, followed by 2 hrs 20% FBS stimulation ...read more
50-65 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.
Read 1 Review rated 4 using NBP2-50037 in the following applications:
c-Fos is an intermediate early gene that is one of four members of the FOS family of activator protein-1 (AP-1) transcription factors, which also includes Fra-1, Fra-2, and FosB (1-3). Under the FOS gene, human c-Fos is synthesized as a protein of 308 amino acids (aa) with a basic leucine zipper (bZip) domain important for dimerization, and a basic domain for interacting with DNA, with a theoretical molecular weight of ~40.6 kDa (4,5). c-Fos can heterodimerize with members of the JUN family (c-Jun, JunB, and JunD) to form the active transcription factor AP-1 complex (3,5). AP-1 related proteins bind TPA-related responsive elements (TRE), cAMP responsive elements (CRE), and related sequences, with c-Fos:c-Jun dimers partial to TRE sites (5).
In response to stimuli, c-Fos, which is encoded by protooncogenes, has a role in cell proliferation, differentiation, and transformation (3,6). A variety of stimuli can increase c-Fos expression such as growth factors, proinflammatory cytokines, UV radiation, neurotransmitters, hormones, injury, and stress (1,6). c-Fos has long been used as a marker for neuronal activity and is associated with neural and behavioral responses following stimuli (1-3, 6-7). Mouse studies have revealed that c-Fos is important for efficient neurogenesis and cortical development (3). Additionally, c-Fos signal can be used as a molecular marker for learning and memory, such as recognition and fear (2,7). Studies have found that repeated positive stimuli result in increased Fos expression while, conversely, repeated negative value stimuli are indicated by decreased signal (7). Intermediate early genes have also been implicated in neuropsychiatric disorders including showing altered c-Fos expression in a schizophrenia animal model (2). Furthermore, antipsychotics and antidepressants are both capable of impacting c-Fos expression (2).
1. Kovacs K. J. (1998). c-Fos as a transcription factor: a stressful (re)view from a functional map. Neurochemistry International. https://doi.org/10.1016/s0197-0186(98)00023-0
2. Gallo, F. T., Katche, C., Morici, J. F., Medina, J. H., & Weisstaub, N. V. (2018). Immediate Early Genes, Memory and Psychiatric Disorders: Focus on c-Fos, Egr1 and Arc. Frontiers in Behavioral Neuroscience. https://doi.org/10.3389/fnbeh.2018.00079
3. Velazquez, F. N., Caputto, B. L., & Boussin, F. D. (2015). c-Fos importance for brain development. Aging. https://doi.org/10.18632/aging.100862
4. Uniprot (P01100)
5. Wu, Z., Nicoll, M., & Ingham, R. J. (2021). AP-1 family transcription factors: a diverse family of proteins that regulate varied cellular activities in classical hodgkin lymphoma and ALK+ ALCL. Experimental Hematology & Oncology. https://doi.org/10.1186/s40164-020-00197-9
6. Shaulian, E., & Karin, M. (2001). AP-1 in cell proliferation and survival. Oncogene. https://doi.org/10.1038/sj.onc.1204383
7. Chung L. (2015). A Brief Introduction to the Transduction of Neural Activity into Fos Signal. Development & Reproduction. https://doi.org/10.12717/DR.2015.19.2.061
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.
Immunofluorescence using NBP2-50037 at a dilution of 1:1000 on 4% PFA perfused 30 micron cryosections of mouse spinal cord. Tissue was blocked with 5% NGS/1% BSA/0.3% Triton X-100, then primary antibody was applied overnight at 4 C in the same diluent. Mouse on mouse avidin-biotin blocking kit with streptavidin-Alexa Fluor 488 conjugate was used for fluorescent detection.
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