- PDB-7asv: Crystal structure of tWHD2 of Rpc5 subunit of human RNA Polymerase III -
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基本情報
登録情報
データベース: PDB / ID: 7asv
タイトル
Crystal structure of tWHD2 of Rpc5 subunit of human RNA Polymerase III
要素
DNA-directed RNA polymerase III subunit RPC5
キーワード
TRANSCRIPTION / RNA Pol III / RNA Polymerase III / Rpc5
機能・相同性
機能・相同性情報
RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / Cytosolic sensors of pathogen-associated DNA / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / RNA Polymerase III Abortive And Retractive Initiation / RNA polymerase III complex / tRNA transcription by RNA polymerase III / defense response to virus ...RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / Cytosolic sensors of pathogen-associated DNA / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / RNA Polymerase III Abortive And Retractive Initiation / RNA polymerase III complex / tRNA transcription by RNA polymerase III / defense response to virus / innate immune response / nucleoplasm / cytosol 類似検索 - 分子機能
DNA-directed RNA polymerase III subunit RPC5, C-terminal / DNA-directed RNA polymerase III subunit RPC5 C-terminal / DNA-directed RNA polymerase III subunit Rpc5 / RPC5 protein 類似検索 - ドメイン・相同性
ACETATE ION / DNA-directed RNA polymerase III subunit RPC5 類似検索 - 構成要素
H2020 Marie Curie Actions of the European Commission
655238
European Union
引用
ジャーナル: Nat Commun / 年: 2020 タイトル: Structure of human RNA polymerase III. 著者: Ewan Phillip Ramsay / Guillermo Abascal-Palacios / Julia L Daiß / Helen King / Jerome Gouge / Michael Pilsl / Fabienne Beuron / Edward Morris / Philip Gunkel / Christoph Engel / Alessandro Vannini / 要旨: In eukaryotes, RNA Polymerase (Pol) III is specialized for the transcription of tRNAs and other short, untranslated RNAs. Pol III is a determinant of cellular growth and lifespan across eukaryotes. ...In eukaryotes, RNA Polymerase (Pol) III is specialized for the transcription of tRNAs and other short, untranslated RNAs. Pol III is a determinant of cellular growth and lifespan across eukaryotes. Upregulation of Pol III transcription is observed in cancer and causative Pol III mutations have been described in neurodevelopmental disorders and hypersensitivity to viral infection. Here, we report a cryo-EM reconstruction at 4.0 Å of human Pol III, allowing mapping and rationalization of reported genetic mutations. Mutations causing neurodevelopmental defects cluster in hotspots affecting Pol III stability and/or biogenesis, whereas mutations affecting viral sensing are located in proximity to DNA binding regions, suggesting an impairment of Pol III cytosolic viral DNA-sensing. Integrating x-ray crystallography and SAXS, we also describe the structure of the higher eukaryote specific RPC5 C-terminal extension. Surprisingly, experiments in living cells highlight a role for this module in the assembly and stability of human Pol III.