期刊
CURRENT OPINION IN STRUCTURAL BIOLOGY
卷 61, 期 -, 页码 17-24出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/j.sbi.2019.10.001
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资金
- NIGMS [R01-GM63072, R35 GM127018]
- NIGMS Molecular Biophysics Training Grant [GM008295]
- Swiss National Science Foundation [P300PA_160983, P300PA_174355]
- Swiss National Science Foundation (SNF) [P300PA_174355, P300PA_160983] Funding Source: Swiss National Science Foundation (SNF)
TFIID is a large multiprotein assembly that serves as a general transcription factor for transcription initiation by eukaryotic RNA polymerase II (Pol II). TFIID is involved in the recognition of the core promoter sequences and neighboring chromatin marks, and can interact with gene-specific activators and repressors. In order to obtain a better molecular and mechanistic understanding of the function of TFIID, its structure has been pursued for many years. However, the scarcity of TFIID and its highly flexible nature have made this pursuit very challenging. Recent breakthroughs, largely due to methodological advances in cryo-electron microscopy, have finally described the structure of this complex, both alone and engaged with core promoter DNA, revealing the functional significance of its conformational complexity in the process of core promoter recognition and initiation of Pol II transcription. Here, we review these recent structural insights and discuss their implications for our understanding of eukaryotic transcription initiation.
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