- EMDB-37752: Structure of the DDB1-AMBRA1 E3 ligase receptor complex linked to... -
+
データを開く
IDまたはキーワード:
読み込み中...
-
基本情報
登録情報
データベース: EMDB / ID: EMD-37752
タイトル
Structure of the DDB1-AMBRA1 E3 ligase receptor complex linked to cell cycle regulation
マップデータ
試料
複合体: DDB1-AMBRA1 complex
タンパク質・ペプチド: Activating molecule in BECN1-regulated autophagy protein 1
タンパク質・ペプチド: DNA damage-binding protein 1
キーワード
E3 ligase / STRUCTURAL PROTEIN
機能・相同性
機能・相同性情報
positive regulation of free ubiquitin chain polymerization / response to mitochondrial depolarisation / positive regulation of mitophagy / positive regulation by virus of viral protein levels in host cell / spindle assembly involved in female meiosis / epigenetic programming in the zygotic pronuclei / UV-damage excision repair / neural tube development / positive regulation of regulatory T cell differentiation / biological process involved in interaction with symbiont ...positive regulation of free ubiquitin chain polymerization / response to mitochondrial depolarisation / positive regulation of mitophagy / positive regulation by virus of viral protein levels in host cell / spindle assembly involved in female meiosis / epigenetic programming in the zygotic pronuclei / UV-damage excision repair / neural tube development / positive regulation of regulatory T cell differentiation / biological process involved in interaction with symbiont / negative regulation of cardiac muscle cell apoptotic process / regulation of mitotic cell cycle phase transition / WD40-repeat domain binding / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / Macroautophagy / negative regulation of reproductive process / negative regulation of developmental process / regulation of G1/S transition of mitotic cell cycle / cullin family protein binding / viral release from host cell / protein phosphatase activator activity / axoneme / autophagosome assembly / ectopic germ cell programmed cell death / ubiquitin-like ligase-substrate adaptor activity / positive regulation of viral genome replication / proteasomal protein catabolic process / mitophagy / phagocytic vesicle / positive regulation of autophagy / positive regulation of gluconeogenesis / autophagosome / cellular response to starvation / Recognition of DNA damage by PCNA-containing replication complex / DNA Damage Recognition in GG-NER / nucleotide-excision repair / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / Formation of Incision Complex in GG-NER / regulation of circadian rhythm / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / Wnt signaling pathway / protein polyubiquitination / positive regulation of protein catabolic process / cellular response to UV / rhythmic process / site of double-strand break / Neddylation / GTPase binding / ubiquitin-dependent protein catabolic process / protein phosphatase binding / protein-macromolecule adaptor activity / damaged DNA binding / mitochondrial outer membrane / proteasome-mediated ubiquitin-dependent protein catabolic process / negative regulation of neuron apoptotic process / cell differentiation / cytoskeleton / chromosome, telomeric region / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / protein ubiquitination / negative regulation of cell population proliferation / focal adhesion / DNA repair / intracellular membrane-bounded organelle / ubiquitin protein ligase binding / apoptotic process / DNA damage response / regulation of transcription by RNA polymerase II / negative regulation of apoptotic process / protein-containing complex binding / nucleolus / perinuclear region of cytoplasm / endoplasmic reticulum / protein-containing complex / mitochondrion / extracellular space / DNA binding / extracellular exosome / nucleoplasm / nucleus / cytosol / cytoplasm 類似検索 - 分子機能
: / RSE1/DDB1/CPSF1 second beta-propeller / Cleavage/polyadenylation specificity factor, A subunit, C-terminal / Cleavage/polyadenylation specificity factor, A subunit, N-terminal / : / CPSF A subunit region / RSE1/DDB1/CPSF1 first beta-propeller / WD domain, G-beta repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. ...: / RSE1/DDB1/CPSF1 second beta-propeller / Cleavage/polyadenylation specificity factor, A subunit, C-terminal / Cleavage/polyadenylation specificity factor, A subunit, N-terminal / : / CPSF A subunit region / RSE1/DDB1/CPSF1 first beta-propeller / WD domain, G-beta repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily 類似検索 - ドメイン・相同性
DNA damage-binding protein 1 / Activating molecule in BECN1-regulated autophagy protein 1 類似検索 - 構成要素
ジャーナル: Nat Commun / 年: 2023 タイトル: Structure of the DDB1-AMBRA1 E3 ligase receptor complex linked to cell cycle regulation. 著者: Ming Liu / Yang Wang / Fei Teng / Xinyi Mai / Xi Wang / Ming-Yuan Su / Goran Stjepanovic / 要旨: AMBRA1 is a tumor suppressor protein that functions as a substrate receptor of the ubiquitin conjugation system with roles in autophagy and the cell cycle regulatory network. The intrinsic disorder ...AMBRA1 is a tumor suppressor protein that functions as a substrate receptor of the ubiquitin conjugation system with roles in autophagy and the cell cycle regulatory network. The intrinsic disorder of AMBRA1 has thus far precluded its structural determination. To solve this problem, we analyzed the dynamics of AMBRA1 using hydrogen deuterium exchange mass spectrometry (HDX-MS). The HDX results indicated that AMBRA1 is a highly flexible protein and can be stabilized upon interaction with DDB1, the adaptor of the Cullin4A/B E3 ligase. Here, we present the cryo-EM structure of AMBRA1 in complex with DDB1 at 3.08 Å resolution. The structure shows that parts of the N- and C-terminal structural regions in AMBRA1 fold together into the highly dynamic WD40 domain and reveals how DDB1 engages with AMBRA1 to create a binding scaffold for substrate recruitment. The N-terminal helix-loop-helix motif and WD40 domain of AMBRA1 associate with the double-propeller fold of DDB1. We also demonstrate that DDB1 binding-defective AMBRA1 mutants prevent ubiquitination of the substrate Cyclin D1 in vitro and increase cell cycle progression. Together, these results provide structural insights into the AMBRA1-ubiquitin ligase complex and suggest a mechanism by which AMBRA1 acts as a hub involved in various physiological processes.