登録情報 データベース : EMDB / ID : EMD-6906 構造の表示 ダウンロードとリンクタイトル Cryo-EM structure of human Dicer and its complexes with a pre-miRNA substrate マップデータ 詳細 試料複合体 : Dicer and trbp複合体 : Human Dicer-TRBP with Pre-let-7 complex Class IIタンパク質・ペプチド : Endoribonuclease Dicerタンパク質・ペプチド : RISC-loading complex subunit TARBP2RNA : RNA (73-mer) 詳細機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
regulation of siRNA processing / regulation of miRNA processing / regulation of viral transcription / negative regulation of cytoplasmic pattern recognition receptor signaling pathway / regulation of regulatory ncRNA processing / peripheral nervous system myelin formation / negative regulation of defense response to virus by host / pre-miRNA binding / tRNA-derived small RNA (tsRNA or tRNA-related fragment, tRF) biogenesis / Small interfering RNA (siRNA) biogenesis ... regulation of siRNA processing / regulation of miRNA processing / regulation of viral transcription / negative regulation of cytoplasmic pattern recognition receptor signaling pathway / regulation of regulatory ncRNA processing / peripheral nervous system myelin formation / negative regulation of defense response to virus by host / pre-miRNA binding / tRNA-derived small RNA (tsRNA or tRNA-related fragment, tRF) biogenesis / Small interfering RNA (siRNA) biogenesis / tRNA decay / global gene silencing by mRNA cleavage / negative regulation of Schwann cell proliferation / ribonuclease III / positive regulation of myelination / apoptotic DNA fragmentation / nerve development / positive regulation of Schwann cell differentiation / RISC-loading complex / miRNA metabolic process / deoxyribonuclease I activity / RISC complex assembly / ribonuclease III activity / miRNA processing / siRNA binding / pre-miRNA processing / M-decay: degradation of maternal mRNAs by maternally stored factors / pre-mRNA binding / siRNA processing / RISC complex / MicroRNA (miRNA) biogenesis / miRNA binding / negative regulation of tumor necrosis factor production / negative regulation of tumor necrosis factor-mediated signaling pathway / positive regulation of viral genome replication / protein sequestering activity / RNA endonuclease activity / helicase activity / neuron projection morphogenesis / negative regulation of protein kinase activity / PKR-mediated signaling / double-stranded RNA binding / regulation of translation / nuclear body / protein domain specific binding / negative regulation of gene expression / perinuclear region of cytoplasm / enzyme binding / negative regulation of transcription by RNA polymerase II / protein homodimerization activity / DNA binding / RNA binding / extracellular exosome / nucleoplasm / ATP binding / identical protein binding / nucleus / metal ion binding / cytoplasm / cytosol 類似検索 - 分子機能 RISC-loading complex subunit TRBP2 / TRBP2 , first double-stranded RNA binding domain / TRBP2 , second double-stranded RNA binding domain / TRBP2 , third double-stranded RNA binding domain / Dicer, double-stranded RNA-binding domain / : / Dicer, partner-binding domain / Dicer, dsRNA-binding domain / : / Dicer, platform domain ... RISC-loading complex subunit TRBP2 / TRBP2 , first double-stranded RNA binding domain / TRBP2 , second double-stranded RNA binding domain / TRBP2 , third double-stranded RNA binding domain / Dicer, double-stranded RNA-binding domain / : / Dicer, partner-binding domain / Dicer, dsRNA-binding domain / : / Dicer, platform domain / Dicer dimerisation domain / Dicer dimerisation domain / Dicer dimerisation domain superfamily / Dicer double-stranded RNA-binding fold domain profile. / Ribonuclease III family signature. / Ribonuclease III domain / Ribonuclease III family domain profile. / Ribonuclease III family / Ribonuclease III domain / PAZ domain superfamily / PAZ / PAZ domain / PAZ domain profile. / PAZ domain / Double-stranded RNA binding motif / Helicase/UvrB, N-terminal / Type III restriction enzyme, res subunit / Double-stranded RNA binding motif / Ribonuclease III, endonuclease domain superfamily / Double stranded RNA-binding domain (dsRBD) profile. / Double-stranded RNA-binding domain / Helicase conserved C-terminal domain / helicase superfamily c-terminal domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性 RISC-loading complex subunit TARBP2 / Endoribonuclease Dicer 類似検索 - 構成要素生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 5.7 Å 詳細 データ登録者Liu Z / Wang J / Cheng H / Ke X / Sun L / Zhang QC / Wang H-W 資金援助 中国, 1件 詳細 詳細を隠すOrganization Grant number 国 National Science Foundation of China 31530018 中国
引用ジャーナル : Cell / 年 : 2018タイトル : Cryo-EM Structure of Human Dicer and Its Complexes with a Pre-miRNA Substrate.著者 : Zhongmin Liu / Jia Wang / Hang Cheng / Xin Ke / Lei Sun / Qiangfeng Cliff Zhang / Hong-Wei Wang / 要旨 : Human Dicer (hDicer) is a multi-domain protein belonging to the RNase III family. It plays pivotal roles in small RNA biogenesis during the RNA interference (RNAi) pathway by processing a diverse ... Human Dicer (hDicer) is a multi-domain protein belonging to the RNase III family. It plays pivotal roles in small RNA biogenesis during the RNA interference (RNAi) pathway by processing a diverse range of double-stranded RNA (dsRNA) precursors to generate ∼22 nt microRNA (miRNA) or small interfering RNA (siRNA) products for sequence-directed gene silencing. In this work, we solved the cryoelectron microscopy (cryo-EM) structure of hDicer in complex with its cofactor protein TRBP and revealed the precise spatial arrangement of hDicer's multiple domains. We further solved structures of the hDicer-TRBP complex bound with pre-let-7 RNA in two distinct conformations. In combination with biochemical analysis, these structures reveal a property of the hDicer-TRBP complex to promote the stability of pre-miRNA's stem duplex in a pre-dicing state. These results provide insights into the mechanism of RNA processing by hDicer and illustrate the regulatory role of hDicer's N-terminal helicase domain. 履歴 登録 2018年2月7日 - ヘッダ(付随情報) 公開 2018年5月9日 - マップ公開 2018年5月9日 - 更新 2020年8月5日 - 現状 2020年8月5日 処理サイト : PDBj / 状態 : 公開
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