"FRNKly, smooth muscle, I don't give a CArG!": a novel mechanism for smooth muscle cell differentiation.
"FRNKly, smooth muscle, I don't give a CArG!": a novel mechanism for smooth muscle cell differentiation.
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“FRNKly,平滑肌,我不给出 CArG!”:平滑肌细胞分化的新机制。
DOI:
10.1161/atvbaha.108.176875
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Wamhoff,BrianR
中科院分区:
文献类型:
--
作者:
Lemmon,JuliaA;Wamhoff,BrianR
Studies spanning the last two decades have begun to uncover the molecular mechanisms underlying smooth muscle cell (SMC) differentiation, specifically the critical role of the ubiquitously expressed serum response factor (SRF) transcription factor. SRF selectively binds to conserved cis-regulatory “CArG box” elements, CC (A/T) 6GG consensus sequence, in the promoters or first introns of numerous smooth muscle-selective genes. The SMC contractile marker genes smooth muscle alpha actin (SMαA), smooth muscle myosin heavy chain (SM-MHC), and smooth muscle 22 alpha (SM22α) all require multiple CArG boxes for proper transcriptional activation. On SRF binding, the coactivator myocardin is recruited to the promoter through direct interaction with SRF and is required for expression of CArG containing SMC-selective genes. 1, 2 In this issue of
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