+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7yz4 | |||||||||
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タイトル | Mouse endoribonuclease Dicer (composite structure) | |||||||||
要素 | Endoribonuclease Dicer | |||||||||
キーワード | RNA BINDING PROTEIN / endoribonuclease / gene silencing / post-transcriptional / catalytic enzyme / cytoplasm | |||||||||
機能・相同性 | 機能・相同性情報 regulation of muscle cell apoptotic process / myoblast differentiation involved in skeletal muscle regeneration / MicroRNA (miRNA) biogenesis / Small interfering RNA (siRNA) biogenesis / ganglion development / hair follicle cell proliferation / zygote asymmetric cell division / regulation of oligodendrocyte differentiation / cardiac neural crest cell development involved in outflow tract morphogenesis / positive regulation of endothelial cell-matrix adhesion via fibronectin ...regulation of muscle cell apoptotic process / myoblast differentiation involved in skeletal muscle regeneration / MicroRNA (miRNA) biogenesis / Small interfering RNA (siRNA) biogenesis / ganglion development / hair follicle cell proliferation / zygote asymmetric cell division / regulation of oligodendrocyte differentiation / cardiac neural crest cell development involved in outflow tract morphogenesis / positive regulation of endothelial cell-matrix adhesion via fibronectin / olfactory bulb interneuron differentiation / regulation of enamel mineralization / positive regulation of establishment of endothelial barrier / positive regulation of hepatic stellate cell proliferation / trophectodermal cell proliferation / regulation of miRNA metabolic process / regulation of odontogenesis of dentin-containing tooth / spermatogonial cell division / regulation of RNA metabolic process / peripheral nervous system myelin formation / regulation of epithelial cell differentiation / regulation of regulatory T cell differentiation / regulation of Notch signaling pathway / spinal cord motor neuron differentiation / global gene silencing by mRNA cleavage / epidermis morphogenesis / negative regulation of Schwann cell proliferation / reproductive structure development / ribonuclease III / positive regulation of myelination / apoptotic DNA fragmentation / inner ear receptor cell development / nerve development / meiotic spindle organization / positive regulation of Schwann cell differentiation / RISC-loading complex / deoxyribonuclease I activity / RISC complex assembly / intestinal epithelial cell development / ribonuclease III activity / regulatory ncRNA-mediated post-transcriptional gene silencing / pericentric heterochromatin formation / miRNA processing / regulation of stem cell differentiation / pre-miRNA processing / regulation of viral genome replication / siRNA processing / digestive tract development / mRNA stabilization / embryonic hindlimb morphogenesis / cartilage development / cardiac muscle cell development / RISC complex / embryonic limb morphogenesis / miRNA binding / positive regulation of vascular endothelial cell proliferation / regulation of myelination / regulation of neuron differentiation / negative regulation of glial cell proliferation / hair follicle morphogenesis / stem cell population maintenance / branching morphogenesis of an epithelial tube / positive regulation of miRNA metabolic process / endoplasmic reticulum-Golgi intermediate compartment / regulation of neurogenesis / hair follicle development / positive regulation of collagen biosynthetic process / postsynaptic density, intracellular component / spindle assembly / RNA processing / spleen development / positive regulation of endothelial cell migration / helicase activity / neuron projection morphogenesis / post-embryonic development / regulation of protein phosphorylation / lung development / multicellular organism growth / cerebral cortex development / rRNA processing / gene expression / growth cone / regulation of inflammatory response / regulation of gene expression / angiogenesis / defense response to virus / cell population proliferation / regulation of cell cycle / axon / glutamatergic synapse / dendrite / positive regulation of gene expression / perinuclear region of cytoplasm / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / DNA binding / RNA binding / ATP binding / nucleus / metal ion binding 類似検索 - 分子機能 | |||||||||
生物種 | Mus musculus (ハツカネズミ) | |||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.84 Å | |||||||||
データ登録者 | Zanova, M. / Zapletal, D. / Kubicek, K. / Stefl, R. / Pinkas, M. / Novacek, J. | |||||||||
資金援助 | チェコ, 2件
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引用 | ジャーナル: Mol Cell / 年: 2022 タイトル: Structural and functional basis of mammalian microRNA biogenesis by Dicer. 著者: David Zapletal / Eliska Taborska / Josef Pasulka / Radek Malik / Karel Kubicek / Martina Zanova / Christian Much / Marek Sebesta / Valeria Buccheri / Filip Horvat / Irena Jenickova / Michaela ...著者: David Zapletal / Eliska Taborska / Josef Pasulka / Radek Malik / Karel Kubicek / Martina Zanova / Christian Much / Marek Sebesta / Valeria Buccheri / Filip Horvat / Irena Jenickova / Michaela Prochazkova / Jan Prochazka / Matyas Pinkas / Jiri Novacek / Diego F Joseph / Radislav Sedlacek / Carrie Bernecky / Dónal O'Carroll / Richard Stefl / Petr Svoboda / 要旨: MicroRNA (miRNA) and RNA interference (RNAi) pathways rely on small RNAs produced by Dicer endonucleases. Mammalian Dicer primarily supports the essential gene-regulating miRNA pathway, but how it is ...MicroRNA (miRNA) and RNA interference (RNAi) pathways rely on small RNAs produced by Dicer endonucleases. Mammalian Dicer primarily supports the essential gene-regulating miRNA pathway, but how it is specifically adapted to miRNA biogenesis is unknown. We show that the adaptation entails a unique structural role of Dicer's DExD/H helicase domain. Although mice tolerate loss of its putative ATPase function, the complete absence of the domain is lethal because it assures high-fidelity miRNA biogenesis. Structures of murine Dicer•-miRNA precursor complexes revealed that the DExD/H domain has a helicase-unrelated structural function. It locks Dicer in a closed state, which facilitates miRNA precursor selection. Transition to a cleavage-competent open state is stimulated by Dicer-binding protein TARBP2. Absence of the DExD/H domain or its mutations unlocks the closed state, reduces substrate selectivity, and activates RNAi. Thus, the DExD/H domain structurally contributes to mammalian miRNA biogenesis and underlies mechanistical partitioning of miRNA and RNAi pathways. | |||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7yz4.cif.gz | 438.4 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7yz4.ent.gz | 346.7 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7yz4.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 7yz4_validation.pdf.gz | 1.3 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7yz4_full_validation.pdf.gz | 1.3 MB | 表示 | |
XML形式データ | 7yz4_validation.xml.gz | 49.8 KB | 表示 | |
CIF形式データ | 7yz4_validation.cif.gz | 74.4 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/yz/7yz4 ftp://data.pdbj.org/pub/pdb/validation_reports/yz/7yz4 | HTTPS FTP |
-関連構造データ
関連構造データ | 14387MC 7yymC 7yynC 7zpiC 7zpjC 7zpkC C: 同じ文献を引用 (文献) M: このデータのモデリングに利用したマップデータ |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-集合体
登録構造単位 |
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-要素
#1: タンパク質 | 分子量: 226809.594 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Mus musculus (ハツカネズミ) / 遺伝子: Dicer1, Dicer, Mdcr 発現宿主: Baculovirus expression vector pFastBac1-HM (ウイルス) 参照: UniProt: Q8R418, ribonuclease III |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: Free form of mouse somatic dicer / タイプ: ORGANELLE OR CELLULAR COMPONENT / Entity ID: all / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 実験値: NO | ||||||||||||||||||||
由来(天然) | 生物種: Mus musculus (ハツカネズミ) | ||||||||||||||||||||
由来(組換発現) | 生物種: Baculovirus expression vector pFastBac1-HM (ウイルス) | ||||||||||||||||||||
緩衝液 | pH: 8 / 詳細: The buffer was always prepared fresh | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.2 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277.15 K / 詳細: Described in STAR methods |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3500 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 55 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 実像数: 6354 |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 862842 | ||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.84 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 92906 / アルゴリズム: FOURIER SPACE 詳細: The map resolution was further improved up to 3.47 with local refinement of the individual protein domains. クラス平均像の数: 81 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 |
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拘束条件 |
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