C-Fos
From Wikipedia, the free encyclopedia
V-fos FBJ murine osteosarcoma viral oncogene homolog
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PDB rendering based on 1a02. | ||||||||||||||
Available structures: 1a02, 1fos, 1s9k | ||||||||||||||
Identifiers | ||||||||||||||
Symbol(s) | FOS; c-fos | |||||||||||||
External IDs | OMIM: 164810 MGI: 95574 HomoloGene: 3844 | |||||||||||||
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RNA expression pattern | ||||||||||||||
Orthologs | ||||||||||||||
Human | Mouse | |||||||||||||
Entrez | 2353 | 14281 | ||||||||||||
Ensembl | ENSG00000170345 | ENSMUSG00000021250 | ||||||||||||
Uniprot | P01100 | Q3U463 | ||||||||||||
Refseq | NM_005252 (mRNA) NP_005243 (protein) |
NM_010234 (mRNA) NP_034364 (protein) |
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Location | Chr 14: 74.82 - 74.82 Mb | Chr 12: 86.36 - 86.37 Mb | ||||||||||||
Pubmed search | [1] | [2] |
In molecular biology, c-Fos is a cellular proto-oncogene belonging to the immediate early gene family of transcription factors. c-Fos has a leucine-zipper DNA binding domain, and a transactivation domain at the C-terminus. Transcription of c-Fos is upregulated in response to many extracellular signals, e.g. growth factors. Additionally, phosphorylation by MAPK, PKA, PKC or cdc2 alters the activity and stability of c-Fos. Members of the Fos family dimerise with Jun to form the AP-1 transcription factor, which upregulates transcription of a diverse range of genes involved in everything from proliferation and differentiation to defense against invasion and cell damage.
The AP-1 complex has been implemented in transformation and progression of cancer, and both Fos and Jun were first discovered in rat fibroblasts.
The viral homologue of c-Fos, v-Fos, is found in the retrovirus Finkel–Biskis–Jinkins murine osteogenic sarcoma virus.
Neuroscientists measure expression of c-fos as an indirect marker of neuronal activity because c-fos is often expressed when neurons fire action potentials.
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[edit] See also
[edit] Further reading
- Murphy LC, Alkhalaf M, Dotzlaw H, et al. (1994). "Regulation of gene expression in T-47D human breast cancer cells by progestins and antiprogestins.". Hum. Reprod. 9 Suppl 1: 174–80. PMID 7962462.
- Pompeiano M, Cirelli C, Arrighi P, Tononi G (1997). "c-Fos expression during wakefulness and sleep.". Neurophysiologie clinique = Clinical neurophysiology 25 (6): 329–41. doi: . PMID 8904195.
- Herrera DG, Robertson HA (1997). "Activation of c-fos in the brain.". Prog. Neurobiol. 50 (2-3): 83–107. PMID 8971979.
- Velazquez Torres A, Gariglio Vidal P (2002). "[Possible role of transcription factor AP1 in the tissue-specific regulation of human papillomavirus]". Rev. Invest. Clin. 54 (3): 231–42. PMID 12183893.
[edit] References
- Karin Milde-Langosch, 2005. The Fos family of transcription factors and their role in tumourigenesis. European Journal of Cancer 41(16):2449-2461. Abstract + Full Text
[edit] External links
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