登録情報 データベース : EMDB / ID : EMD-47690 ダウンロードとリンクタイトル Cryo-EM structure of NOT1:NOT8:PieF マップデータmap used for model refinement 詳細 試料複合体 : NOT1:NOT8:PieFタンパク質・ペプチド : Ubiquitin-like protein SMT3,CCR4-NOT transcription complex subunit 8タンパク質・ペプチド : Dot/Icm T4SS effector PieFタンパク質・ペプチド : CCR4-NOT transcription complex subunit 1リガンド : MAGNESIUM IONリガンド : water 詳細 キーワード PieF / mRNA decay / deadenylation / CCR4-NOT / host-pathogen interactions / GENE REGULATION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
positive regulation of cytoplasmic mRNA processing body assembly / poly(A)-specific ribonuclease / poly(A)-specific ribonuclease activity / CCR4-NOT core complex / armadillo repeat domain binding / CCR4-NOT complex / miRNA-mediated gene silencing by mRNA destabilization / regulation of stem cell population maintenance / SUMO is conjugated to E1 (UBA2:SAE1) / SUMOylation of nuclear envelope proteins ... positive regulation of cytoplasmic mRNA processing body assembly / poly(A)-specific ribonuclease / poly(A)-specific ribonuclease activity / CCR4-NOT core complex / armadillo repeat domain binding / CCR4-NOT complex / miRNA-mediated gene silencing by mRNA destabilization / regulation of stem cell population maintenance / SUMO is conjugated to E1 (UBA2:SAE1) / SUMOylation of nuclear envelope proteins / SUMO is transferred from E1 to E2 (UBE2I, UBC9) / SUMO is proteolytically processed / positive regulation of mRNA catabolic process / SUMOylation of transcription factors / negative regulation of retinoic acid receptor signaling pathway / SUMOylation of transcription cofactors / Postmitotic nuclear pore complex (NPC) reformation / nuclear-transcribed mRNA poly(A) tail shortening / septin ring / SUMOylation of DNA damage response and repair proteins / negative regulation of intracellular estrogen receptor signaling pathway / Transcriptional and post-translational regulation of MITF-M expression and activity / SUMOylation of DNA replication proteins / trophectodermal cell differentiation / miRNA-mediated post-transcriptional gene silencing / Deadenylation of mRNA / nuclear retinoic acid receptor binding / SUMOylation of SUMOylation proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / M-decay: degradation of maternal mRNAs by maternally stored factors / SUMOylation of RNA binding proteins / SUMOylation of chromatin organization proteins / peroxisomal membrane / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / TP53 regulates transcription of additional cell cycle genes whose exact role in the p53 pathway remain uncertain / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / ubiquitin-like protein ligase binding / protein sumoylation / condensed nuclear chromosome / nuclear estrogen receptor binding / P-body / protein tag activity / regulation of translation / 3'-5'-RNA exonuclease activity / molecular adaptor activity / negative regulation of translation / protein domain specific binding / positive regulation of cell population proliferation / negative regulation of transcription by RNA polymerase II / extracellular space / RNA binding / metal ion binding / identical protein binding / nucleus / membrane / cytosol 類似検索 - 分子機能 CCR4-NOT transcription complex subunit 7/8/Pop2 / Ribonuclease CAF1 / CAF1 family ribonuclease / : / CCR4-NOT transcription complex subunit 1, N-terminal domain / CCR4-NOT transcription complex subunit 1, NOT1_connector / : / CCR4-Not complex component, Not1, C-terminal / CCR4-NOT transcription complex subunit 1, domain 4 / CCR4-NOT transcription complex subunit 1, CAF1-binding domain ... CCR4-NOT transcription complex subunit 7/8/Pop2 / Ribonuclease CAF1 / CAF1 family ribonuclease / : / CCR4-NOT transcription complex subunit 1, N-terminal domain / CCR4-NOT transcription complex subunit 1, NOT1_connector / : / CCR4-Not complex component, Not1, C-terminal / CCR4-NOT transcription complex subunit 1, domain 4 / CCR4-NOT transcription complex subunit 1, CAF1-binding domain / CCR4-NOT transcription complex subunit 1, TTP binding domain / CCR4-NOT transcription complex subunit 1, HEAT repeat / CCR4-NOT subunit 1, TTP binding domain superfamily / CCR4-NOT transcription complex subunit 1 / CCR4-Not complex component, Not1 / CCR4-Not complex, Not1 subunit, domain of unknown function DUF3819 / CCR4-NOT transcription complex subunit 1 CAF1-binding domain / CCR4-NOT transcription complex subunit 1 TTP binding domain / CCR4-NOT transcription complex subunit 1 HEAT repeat / Rad60/SUMO-like domain / Ubiquitin-2 like Rad60 SUMO-like / Ubiquitin homologues / Ubiquitin domain profile. / Ubiquitin-like domain / Ribonuclease H superfamily / Ubiquitin-like domain superfamily / Ribonuclease H-like superfamily 類似検索 - ドメイン・相同性 Dot/Icm T4SS effector PieF / CCR4-NOT transcription complex subunit 1 / Ubiquitin-like protein SMT3 / CCR4-NOT transcription complex subunit 8 類似検索 - 構成要素生物種 Homo sapiens (ヒト) / Legionella pneumophila (バクテリア)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.5 Å 詳細 データ登録者Levdansky E / Deme J / Lea SM / Valkov E 資金援助 米国, 1件 詳細 詳細を隠すOrganization Grant number 国 National Institutes of Health/National Cancer Institute (NIH/NCI) Intramural Research Program 米国
引用ジャーナル : Nat Commun / 年 : 2025タイトル : Intracellular pathogen effector reprograms host gene expression by inhibiting mRNA decay.著者 : Yevgen Levdansky / Justin C Deme / David J Turner / Claire T Piczak / Filip Pekovic / Anna L Valkov / Sergey G Tarasov / Susan M Lea / Eugene Valkov / 要旨 : Legionella pneumophila, an intracellular bacterial pathogen, injects effector proteins into host cells to manipulate cellular processes and promote its survival and proliferation. Here, we reveal a ... Legionella pneumophila, an intracellular bacterial pathogen, injects effector proteins into host cells to manipulate cellular processes and promote its survival and proliferation. Here, we reveal a unique mechanism by which the Legionella effector PieF perturbs host mRNA decay by targeting the human CCR4-NOT deadenylase complex. High-resolution cryo-electron microscopy structures and biochemical analyses reveal that PieF binds with nanomolar affinity to the NOT7 and NOT8 catalytic subunits of CCR4-NOT, obstructing RNA access and displacing a catalytic Mg²⁺ ion from the active site. Additionally, PieF prevents NOT7/8 from associating with their partner deadenylases NOT6/6L, inhibiting the assembly of a functional deadenylase complex. Consequently, PieF robustly blocks mRNA poly(A) tail shortening and degradation with striking potency and selectivity for NOT7/8. This inhibition of deadenylation by PieF impedes cell cycle progression in human cells, revealing a novel bacterial strategy to modulate host gene expression. 履歴 登録 2024年11月4日 - ヘッダ(付随情報) 公開 2025年7月23日 - マップ公開 2025年7月23日 - 更新 2025年7月23日 - 現状 2025年7月23日 処理サイト : RCSB / 状態 : 公開
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