C-Fos

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V-fos FBJ murine osteosarcoma viral oncogene homolog
PBB Protein FOS image.jpg
PDB rendering based on 1a02.
Identifiers
Symbol(s) FOS; c-fos
External IDs OMIM: 164810 MGI: 95574 Homologene: 3844
RNA expression pattern

PBB GE FOS 209189 at tn.png

More reference expression data

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)
Location Chr 14: 74.82 - 74.82 Mb Chr 12: 86.36 - 86.37 Mb
Pubmed search [1] [2]

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Overview

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.

See also

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:10.1016/0987-7053(96)84906-9. 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.

References

  1. 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

External links


v • d • e
Oncogenes/Proto-oncogenes
Transcription factorsAP-1 (c-Fos, c-Jun) - c-Myc
Tyrosine kinase / Receptorsc-ErbB (HER2/neu, Her 3) - c-Kit - c-Met - c-Ret - Flt3 -
Otherc-Akt - c-Bcl-2 - c-Mdm2 - -c-Raf - c-Ras (HRAS) - c-Sis - c-Src - Notch - Stathmin
v • d • e
Transcription factors and intracellular receptors
(1) Basic domains
(1.1) Basic leucine zipper (bZIP) Activating transcription factor (1, 2, 3, 4, 5, 6) • AP-1 (c-Fos, FOSB, FOSL1, FOSL2, c-Jun, JUNB, JUND) • BACH (1, 2) • C/EBP (α, β, γ, δ, ε, ζ) • CREB (1, 3) • GABPA • MAF (B, F, G, K) • NRL • NRF1 • XBP1
(1.2) Basic helix-loop-helix (bHLH) ATOH1 • AhR • AHRR • ARNT • ASCL1 • BMAL (ARNTL, ARNTL2) • CLOCK • HIF (1A, 3A) • Myogenic regulatory factors (MyoD, Myogenin, MYF5, MYF6) • NEUROD1 • Twist • USF1
(1.3) bHLH-ZIP Myc • MITF • SREBP (1, 2)
(1.6) Basic helix-span-helix (bHSH) AP-2
(2) Zinc finger
DNA-binding domains
(2.1) Nuclear receptor (Cys4) subfamily 1 (Thyroid hormone (α, β), CAR, FXR, LXR (α, β), PPAR (α, β/δ, γ), PXR, RAR (α, β, γ), ROR (α, β, γ), Rev-ErbA (α, β), VDR) • subfamily 2 (COUP-TF (I, II), Ear-2, HNF4 (α, γ), PNR, RXR (α, β, γ), Testicular receptor (2, 4), TLX) • subfamily 3 (Steroid hormone (Estrogen (α, β), Estrogen related (α, β, γ), Androgen, Glucocorticoid, Mineralocorticoid, Progesterone)) • subfamily 4 NUR (NGFIB, NOR1, NURR1) • subfamily 5 (LRH-1, SF1) • subfamily 6 (GCNF) • subfamily 0 (DAX1, SHP)
(2.2) Other Cys4 GATA (1, 2, 3, 4, 5, 6)
(2.3) Cys2His2 General transcription factors (TFIIA, TFIIB, TFIID, TFIIE, TFIIF, TFIIH: 1, 2) • GLI-Krüppel family (1, 2, 3, YY1) • KLF (2, 4, 5, 6, 10, 11, 12, 13) • Sp1 • zinc finger (3, 35, 43, 146, 148, 165, 217, 268, 281, 350) • Zbtb7 (7A) • ZBT (16, 17, 33)
(2.4) Cys6 HIVEP1
(3) Helix-turn-helix
domains
(3.1) Homeo domain ARX • Homeobox (A1, A3, A4, A5, A7, A9, A10, A11, A13, B1, B2, B3, B4, B5, B6, B7, B8, B9, B13, C4, C6, C8, C9, C13, D1, D3, D4, D9, D10, D11, D12, D13) • NANOG • NKX (2-1, 2-5, 3-1) • POU domain (PIT-1, BRN-3: 1, 2, Octamer transcription factor: 1, 2, 3/4, 6, 7)
(3.2) Paired box PAX (1, 2, 3, 4, 5, 6, 7, 8, 9)
(3.3) Fork head / winged helix E2F (1, 2, 3, 4, 5) • FOX proteins (C1, C2, E1, G1, H1, L2, M1, N3, O3, O4, P1, P2, P3)
(3.4) Heat Shock Factors HSF1
(3.5) Tryptophan clusters ELF (4, 5) • Interferon regulatory factors (1, 2, 3, 4, 5, 6, 7, 8) • MYB
(3.6) TEA domain transcriptional enhancer factor 1, 2
(4) β-Scaffold factors with
minor groove contacts
(4.1) Rel homology region NF-κB (NFKB1, NFKB2, REL, RELA, RELB) • NFAT (5, C1, C2, C3, C4)
(4.2) STAT STAT (1, 2, 3, 4, 5, 6)
(4.3) p53 p53
(4.4) MADS box Mef2 (A, B, C, D) • SRF
(4.7) High mobility group HNF (1A, 1B) • LEF1 • SOX (3, 4, 6, 9, 10, 13, 18) • SRY • SSRP1
(4.10) Cold-shock domain CSDA
(0) Other
transcription factors
(0.2) HMGI(Y) HMGA (1, 2)
(0.3) Pocket domain Rb • RBL1 • RBL2
(0.6) Miscellaneous ARID (1A, 1B, 2, 3A, 3B, 4A) • CAP • Rho/Sigma • R-SMAD
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