Molecular basis of FIR-mediated c-myc transcriptional control.
Molecular basis of FIR-mediated c-myc transcriptional control.
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DOI:
10.1038/nsmb.1883
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发表时间:
2010-09
影响因子:
16.8
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中科院分区:
文献类型:
--
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The Far UpStream Element (FUSE) regulatory system promotes a peak in the concentration of c-Myc during cell cycle. First, the FBP transcriptional activator binds to the FUSE DNA element upstream of the c-myc promoter. Then, FBP recruits its specific repressor (FIR) which acts as an on/off transcriptional switch. Here we describe the molecular basis of FIR recruitment showing that the tandem RNA recognitions motifs of FIR provide a platform for independent FUSE DNA and FBP protein binding and explaining the structural basis of the reversibility of the FBP-FIR interaction. We also show that the physical coupling between FBP and FIR is modulated by a flexible linker positioned sequentially to the recruiting element. Our data explain how the FUSE system regulates precisely c-myc transcription and suggest that a small change in FBP–FIR affinity leads to a substantial effect on c-Myc concentration.
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影响因子:
11.4
作者:
Crichlow, Gregg V.;Zhou, Hongwen;Hsiao, Hsin-hao;Frederick, Kendra B.;Debrosse, Maxime;Yang, Yuande;Folta-Stogniew, Ewa J.;Chung, Hye-Jung;Fan, Chengpeng;De La Cruz, Enrique M.;Levens, David;Lolis, Elias;Braddock, Demetrios
通讯作者:
Braddock, Demetrios
影响因子:
2.9
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Hsiao, Hsin-hao;Nath, Abhinav;Braddock, Demetrios T.
通讯作者:
Braddock, Demetrios T.
影响因子:
16.8
作者:
Kouzine, Fedor;Sanford, Suzanne;Levens, David
通讯作者:
Levens, David
影响因子:
15
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Beuth, Barbara;Garcia-Mayoral, Maria Flor;Ramos, Andres
通讯作者:
Ramos, Andres
影响因子:
4.3
作者:
Kannt, A;Young, S;Bendall, DS
通讯作者:
Bendall, DS