出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/02/15 00:14:20」(JST)
FBJ murine osteosarcoma viral oncogene homolog | |||||||||||||
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PDB rendering based on 1a02. |
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Identifiers | |||||||||||||
Symbols | FOS; AP-1; C-FOS; p55 | ||||||||||||
External IDs | OMIM: 164810 MGI: 95574 HomoloGene: 3844 ChEMBL: 5029 GeneCards: FOS Gene | ||||||||||||
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RNA expression pattern | |||||||||||||
More reference expression data | |||||||||||||
Orthologs | |||||||||||||
Species | Human | Mouse | |||||||||||
Entrez | 2353 | 14281 | |||||||||||
Ensembl | ENSG00000170345 | ENSMUSG00000021250 | |||||||||||
UniProt | P01100 | P01101 | |||||||||||
RefSeq (mRNA) | NM_005252.3 | NM_010234.2 | |||||||||||
RefSeq (protein) | NP_005243.1 | NP_034364.1 | |||||||||||
Location (UCSC) | Chr 14: 75.75 – 75.75 Mb |
Chr 12: 85.47 – 85.48 Mb |
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PubMed search | [1] | [2] | |||||||||||
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In the fields of molecular biology and genetics, c-Fos is a protein encoded by the FOS gene.[1][2][3]
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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. In addition, phosphorylation by MAPK, PKA, PKC or cdc2 alters the activity and stability of c-Fos. Members of the Fos family dimerise with C-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 implicated in transformation and progression of cancer, and both c-Fos and c-Jun were first discovered in rat fibroblasts. C-Fos was discovered as the transforming gene of the FBJ MSV and jun, first as the Fos-binding protein p39, then subsequently as the oncogene from avian sarcoma virus 17 (junana = 17).
The viral homologue of c-Fos, v-Fos, is found in the retrovirus Finkel–Biskis–Jinkins murine osteogenic sarcoma virus.
Cocaine, methamphetamine,[4] heroin,[5] and other psychoactive drugs[6][7] have been shown to increase c-fos production in prefrontal cortex as well as in the mesolimbic reward pathway. As such, the c-Fos promoter finds utilization in drug abuse research in general, as well as with context-induced relapse to drug-seeking and other behavioral changes associated with chronic drug taking.
An increase in c-Fos production in androgen receptor-containing neurons has been observed in rats after mating.
Expression of c-fos is an indirect marker of neuronal activity because c-fos is often expressed when neurons fire action potentials.[8][9] Upregulation of c-fos mRNA in a neuron indicates recent activity.[10]
Drug abuse research also finds application of the c-fos promoter. Scientists use this promoter to turn on transgenes in rats that allow them to manipulate specific neuronal ensembles to assess their role in drug-related memories and behavior.[11] This neuronal control can be replicated with optogenetics or DREADDs.
C-Fos has been shown to interact with:
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拡張検索 | 「c-Fos protein」「proto-oncogene protein c-Fos」「癌原遺伝子産物c-Fos」「c-Fosタンパク質」 |
関連記事 | 「C」「F」「c」 |
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