Gene ID: 6722 SRF serum response factor, "This gene encodes a ubiquitous nuclear protein that stimulates both cell proliferation and differentiation. It is a member of the MADS (MCM1, Agamous, Deficiens, and SRF) box superfamily of transcription factors. This protein binds to the serum response element (SRE) in the promoter region of target genes. This protein regulates the activity of many immediate-early genes, for example c-fos, and thereby participates in cell cycle regulation, apoptosis, cell growth, and cell differentiation. This gene is the downstream target of many pathways; for example, the mitogen-activated protein kinase pathway (MAPK) that acts through the ternary complex factors (TCFs). Two transcript variants encoding different isoforms have been found for this gene."[2]
NP_003122.1 serum response factor isoform 1: "This variant (1) represents the longer transcript and encodes the longer isoform (1)."[2]
cd00266 (Location:142 → 223): "MADS_SRF_like; SRF-like/Type I subfamily of MADS (MCM1, Agamous, Deficiens, and SRF (serum response factor) box family of eukaryotic transcriptional regulators. Binds DNA and exists as hetero- and homo-dimers. Differs from the MEF-like/Type II subgroup mainly in position of the alpha 2 helix responsible for the dimerization interface. Important in homeotic regulation in plants and in immediate-early development in animals. Also found in fungi."[3]
Serum response factor is a member of the MADS (MCM1, Agamous, Deficiens, and SRF) box superfamily of transcription factors.[4] This protein binds to the serum response element (SRE) in the promoter region of target genes. This protein regulates the activity of many immediate early genes, for example c-fos, and thereby participates in cell cycle regulation, apoptosis, cell growth, and cell differentiation. This gene is the downstream target of many pathways; for example, the mitogen-activated protein kinase pathway (MAPK) that acts through the ternary complex factors (TCFs).[5][6]
SRF is important during the development of the embryo, as it has been linked to the formation of mesoderm.[7][8] In the fully developed mammal, SRF is crucial for the growth of skeletal muscle.[9] Interaction of SRF with other proteins, such as steroid hormone receptors, may contribute to regulation of muscle growth by steroids.[10] Interaction of SRF with other proteins such as myocardin or Elk-1 may enhance or suppress expression of genes important for growth of vascular smooth muscle.
Clinical significance
Lack of skin SRF is associated with psoriasis and other skin diseases.[11]
Interactions
Serum response factor has been shown to interact with:
↑Norman C, Runswick M, Pollock R, Treisman R (December 1988). "Isolation and properties of cDNA clones encoding SRF, a transcription factor that binds to the c-fos serum response element". Cell. 55 (6): 989–1003. doi:10.1016/0092-8674(88)90244-9. PMID3203386.
↑ 2.02.1RefSeq (May 2014). "SRF serum response factor [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 23 November 2019.
↑cd00266 (17 January 2013). "Conserved Protein Domain Family MADS_SRF_like". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 23 November 2019.
↑Hanlon M, Sealy L (May 1999). "Ras regulates the association of serum response factor and CCAAT/enhancer-binding protein beta". J. Biol. Chem. 274 (20): 14224–8. doi:10.1074/jbc.274.20.14224. PMID10318842.
↑Joliot V, Demma M, Prywes R (February 1995). "Interaction with RAP74 subunit of TFIIF is required for transcriptional activation by serum response factor". Nature. 373 (6515): 632–5. doi:10.1038/373632a0. PMID7854423.
↑Zhu H, Joliot V, Prywes R (February 1994). "Role of transcription factor TFIIF in serum response factor-activated transcription". J. Biol. Chem. 269 (5): 3489–97. PMID8106390.
↑Lee SK, Kim JH, Lee YC, Cheong J, Lee JW (April 2000). "Silencing mediator of retinoic acid and thyroid hormone receptors, as a novel transcriptional corepressor molecule of activating protein-1, nuclear factor-kappaB, and serum response factor". J. Biol. Chem. 275 (17): 12470–4. doi:10.1074/jbc.275.17.12470. PMID10777532.
↑Kim HJ, Kim JH, Lee JW (October 1998). "Steroid receptor coactivator-1 interacts with serum response factor and coactivates serum response element-mediated transactivations". J. Biol. Chem. 273 (44): 28564–7. doi:10.1074/jbc.273.44.28564. PMID9786846.
↑Gupta M, Kogut P, Davis FJ, Belaguli NS, Schwartz RJ, Gupta MP (March 2001). "Physical interaction between the MADS box of serum response factor and the TEA/ATTS DNA-binding domain of transcription enhancer factor-1". J. Biol. Chem. 276 (13): 10413–22. doi:10.1074/jbc.M008625200. PMID11136726.