- EMDB-40477: KLHDC2 in complex with EloB and EloC -
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基本情報
登録情報
データベース: EMDB / ID: EMD-40477
タイトル
KLHDC2 in complex with EloB and EloC
マップデータ
試料
複合体: Full-length KLHDC2 in complex with EloB and EloC
タンパク質・ペプチド: Kelch domain-containing protein 2
タンパク質・ペプチド: Elongin-B
タンパク質・ペプチド: Elongin-C
キーワード
KLHDC2 / PEPTIDE BINDING PROTEIN
機能・相同性
機能・相同性情報
ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / target-directed miRNA degradation / elongin complex / VCB complex / Cul5-RING ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation ...ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / target-directed miRNA degradation / elongin complex / VCB complex / Cul5-RING ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / ubiquitin-like ligase-substrate adaptor activity / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / Formation of HIV elongation complex in the absence of HIV Tat / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / transcription corepressor binding / transcription elongation by RNA polymerase II / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / Vif-mediated degradation of APOBEC3G / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Inactivation of CSF3 (G-CSF) signaling / Evasion by RSV of host interferon responses / Regulation of expression of SLITs and ROBOs / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / Neddylation / ubiquitin-dependent protein catabolic process / protein-containing complex assembly / nuclear membrane / proteasome-mediated ubiquitin-dependent protein catabolic process / nuclear body / protein ubiquitination / ubiquitin protein ligase binding / regulation of transcription by RNA polymerase II / nucleoplasm / nucleus / cytosol 類似検索 - 分子機能
Galactose oxidase, central domain / Elongin B / Elongin-C / Kelch-type beta propeller / S-phase kinase-associated protein 1-like / SKP1 component, POZ domain / Skp1 family, tetramerisation domain / Found in Skp1 protein family / SKP1/BTB/POZ domain superfamily / Ubiquitin family ...Galactose oxidase, central domain / Elongin B / Elongin-C / Kelch-type beta propeller / S-phase kinase-associated protein 1-like / SKP1 component, POZ domain / Skp1 family, tetramerisation domain / Found in Skp1 protein family / SKP1/BTB/POZ domain superfamily / Ubiquitin family / Ubiquitin homologues / Ubiquitin domain profile. / Ubiquitin-like domain / Ubiquitin-like domain superfamily 類似検索 - ドメイン・相同性
ジャーナル: Nat Struct Mol Biol / 年: 2024 タイトル: Co-opting the E3 ligase KLHDC2 for targeted protein degradation by small molecules. 著者: Christopher M Hickey / Katherine M Digianantonio / Kurt Zimmermann / Alicia Harbin / Connor Quinn / Avani Patel / Peter Gareiss / Amanda Chapman / Bernadette Tiberi / Jennifer Dobrodziej / ...著者: Christopher M Hickey / Katherine M Digianantonio / Kurt Zimmermann / Alicia Harbin / Connor Quinn / Avani Patel / Peter Gareiss / Amanda Chapman / Bernadette Tiberi / Jennifer Dobrodziej / John Corradi / Angela M Cacace / David R Langley / Miklós Békés / 要旨: Targeted protein degradation (TPD) by PROTAC (proteolysis-targeting chimera) and molecular glue small molecules is an emerging therapeutic strategy. To expand the roster of E3 ligases that can be ...Targeted protein degradation (TPD) by PROTAC (proteolysis-targeting chimera) and molecular glue small molecules is an emerging therapeutic strategy. To expand the roster of E3 ligases that can be utilized for TPD, we describe the discovery and biochemical characterization of small-molecule ligands targeting the E3 ligase KLHDC2. Furthermore, we functionalize these KLHDC2-targeting ligands into KLHDC2-based BET-family and AR PROTAC degraders and demonstrate KLHDC2-dependent target-protein degradation. Additionally, we offer insight into the assembly of the KLHDC2 E3 ligase complex. Using biochemical binding studies, X-ray crystallography and cryo-EM, we show that the KLHDC2 E3 ligase assembles into a dynamic tetramer held together via its own C terminus, and that this assembly can be modulated by substrate and ligand engagement.
モデル: Quantifoil / 材質: COPPER / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY ARRAY / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 20 sec. / 前処理 - 雰囲気: AIR 詳細: SPT Labtech Quantifoil Active Grid nanowire grids were used (1.2uM/0.8uM). The grids were glow-discharged with the in-line glow discharge to activate the nanowires at 12mA. Approximately 6 nL ...詳細: SPT Labtech Quantifoil Active Grid nanowire grids were used (1.2uM/0.8uM). The grids were glow-discharged with the in-line glow discharge to activate the nanowires at 12mA. Approximately 6 nL of the complex were applied to the grids using a Chameleon EP system (SPT Labtech) at ambient temperature with 75% relative humidity.
凍結
凍結剤: ETHANE / 装置: SPOTITON
詳細
This sample was crosslinked with BS3 prior to freezing