Cfos Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
CFOS (also known as c-Fos) is a member of the Fos family of immediate early genes (IEGs) that functions as a transcription factor in response to neuronal activity [1]. The c-Fos protein forms heterodimers with Jun proteins to create the AP-1 (Activator Protein-1) transcription factor complex, which regulates the expression of target genes involved in synaptic plasticity, cell survival, and stress responses [2]. As an activity-dependent marker, c-Fos has been extensively used to map functionally active neural circuits in the brain. [1]
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The c-Fos protein contains several functional domains: [4]
| Domain | Position | Function | [5]
|--------| [6]
| Transactivation domain | N|----------|-----------terminal (1-100 aa) | Interacts with transcriptional coactivators | [7]
| DNA-binding domain | Central (140-200 aa) | Basic region binds DNA |
| Leucine zipper | C-terminal (200-280 aa) | Dimerization with Jun proteins |
c-Fos is rapidly and transiently induced in response to:
As part of AP-1 complex:
c-Fos expression serves as a functional activity marker:
c-Fos heterodimerizes with Jun proteins:
AP-1 regulates genes involved in:
The role of Fos in neuronal death and survival. Trends in Neurosciences, 1996. PMID:8971983
Inducible and constitutive transcription factors in the mammalian nervous system. Brain Research Reviews, 1998. PMID:9818569
c-Fos expression in Alzheimer's disease. Neurobiology of Aging, 2014. PMID:24746363
c-Fos in Parkinson's disease. Progress in Neurobiology, 2002. PMID:12498903
c-Fos and epilepsy. Brain Research, 2005. PMID:16300752
[Fos Protein Family](/genes/fos)
[JUN Gene](/genes/jun)
[Transcription Factor Signaling](/genes/ran)
[Immediate Early Genes](/genes/ar)
[Synaptic Plasticity](/genes/syna)
[Alzheimer's Disease](/diseases/alzheimers-disease)
[Parkinson's Disease](/genes/ar)
[Epilepsy](/diseases/epilepsy)
[Genes Index](/genes/genes)
The study of Cfos Gene has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Dragunow, M. & Faull, R. (1989). The use of c-fos as a metabolic marker in neuronal pathway tracing. Journal of Neuroscience Methods. 1989. ↩︎
Hughes, P. et al. (1999). c-Fos and neuronal death. Annals of the New York Academy of Sciences. 1999. ↩︎
Zhang, J. et al. (2002). c-Fos expression in the pedunculopontine nucleus in Parkinson's disease. Brain Research. 2002. ↩︎
Sagar, S.M. et al. (1988). Expression of c-fos in brain cells. Molecular Neurobiology. 1988. ↩︎
Kandel, E.R. (2001). The molecular biology of memory storage. Science. 2001. ↩︎
Herdegen, T. & Leah, J.D. (1998). Inducible and constitutive transcription factors in the mammalian nervous system. Brain Research Reviews. 1998. ↩︎
Herrera, D.G. & Robertson, H.A. (1996). Activation of c-fos in the brain. Progress in Neurobiology. 1996. ↩︎