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基本情報
登録情報 | データベース: PDB / ID: 8jas | |||||||||||||||||||||||||||||||||
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タイトル | Structure of CRL2APPBP2 bound with RxxGPAA degron (tetramer) | |||||||||||||||||||||||||||||||||
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![]() | PROTEIN BINDING / E3 Ubiquitination ligase | |||||||||||||||||||||||||||||||||
機能・相同性 | ![]() cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / cellular response to chemical stress / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / target-directed miRNA degradation / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / elongin complex / positive regulation of protein autoubiquitination ...cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / cellular response to chemical stress / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / target-directed miRNA degradation / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / elongin complex / positive regulation of protein autoubiquitination / RNA polymerase II transcription initiation surveillance / protein neddylation / NEDD8 ligase activity / VCB complex / negative regulation of response to oxidative stress / microtubule motor activity / Cul5-RING ubiquitin ligase complex / microtubule associated complex / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / negative regulation of type I interferon production / Cul4A-RING E3 ubiquitin ligase complex / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul4-RING E3 ubiquitin ligase complex / Cul3-RING ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / negative regulation of mitophagy / Prolactin receptor signaling / cullin family protein binding / 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 / protein monoubiquitination / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / intracellular transport / ubiquitin-like ligase-substrate adaptor activity / Formation of HIV elongation complex in the absence of HIV Tat / protein K48-linked ubiquitination / RNA Polymerase II Transcription Elongation / Nuclear events stimulated by ALK signaling in cancer / Formation of RNA Pol II elongation complex / Regulation of BACH1 activity / transcription-coupled nucleotide-excision repair / RNA Polymerase II Pre-transcription Events / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / post-translational protein modification / intrinsic apoptotic signaling pathway / negative regulation of insulin receptor signaling pathway / cytoplasmic vesicle membrane / T cell activation / Degradation of DVL / Recognition of DNA damage by PCNA-containing replication complex / Degradation of GLI1 by the proteasome / transcription corepressor binding / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / DNA Damage Recognition in GG-NER / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / TP53 Regulates Transcription of DNA Repair Genes / cellular response to amino acid stimulus / transcription initiation at RNA polymerase II promoter / Inactivation of CSF3 (G-CSF) signaling / intracellular protein transport / Degradation of beta-catenin by the destruction complex / transcription elongation by RNA polymerase II / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / NOTCH1 Intracellular Domain Regulates Transcription / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / G1/S transition of mitotic cell cycle / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / negative regulation of canonical Wnt signaling pathway / Formation of Incision Complex in GG-NER / Regulation of expression of SLITs and ROBOs / RING-type E3 ubiquitin transferase / Interleukin-1 signaling / Orc1 removal from chromatin / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / Regulation of RAS by GAPs / Regulation of RUNX2 expression and activity / KEAP1-NFE2L2 pathway / protein polyubiquitination / ubiquitin-protein transferase activity / positive regulation of protein catabolic process / cellular response to UV / Antigen processing: Ubiquitination & Proteasome degradation / ubiquitin protein ligase activity 類似検索 - 分子機能 | |||||||||||||||||||||||||||||||||
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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: 3.54 Å | |||||||||||||||||||||||||||||||||
![]() | Zhao, S. / Zhang, K. / Xu, C. | |||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular basis for C-degron recognition by CRL2 ubiquitin ligase. 著者: Shidong Zhao / Diana Olmayev-Yaakobov / Wenwen Ru / Shanshan Li / Xinyan Chen / Jiahai Zhang / Xuebiao Yao / Itay Koren / Kaiming Zhang / Chao Xu / ![]() ![]() 要旨: E3 ubiquitin ligases determine the specificity of eukaryotic protein degradation by selective binding to destabilizing protein motifs, termed degrons, in substrates for ubiquitin-mediated proteolysis. ...E3 ubiquitin ligases determine the specificity of eukaryotic protein degradation by selective binding to destabilizing protein motifs, termed degrons, in substrates for ubiquitin-mediated proteolysis. The exposed C-terminal residues of proteins can act as C-degrons that are recognized by distinct substrate receptors (SRs) as part of dedicated cullin-RING E3 ubiquitin ligase (CRL) complexes. APPBP2, an SR of Cullin 2-RING ligase (CRL2), has been shown to recognize R-x-x-G/C-degron; however, the molecular mechanism of recognition remains elusive. By solving several cryogenic electron microscopy structures of active CRL2 bound with different R-x-x-G/C-degrons, we unveiled the molecular mechanisms underlying the assembly of the CRL2 dimer and tetramer, as well as C-degron recognition. The structural study, complemented by binding experiments and cell-based assays, demonstrates that APPBP2 specifically recognizes the R-x-x-G/C-degron via a bipartite mechanism; arginine and glycine, which play critical roles in C-degron recognition, accommodate distinct pockets that are spaced by two residues. In addition, the binding pocket is deep enough to enable the interaction of APPBP2 with the motif placed at or up to three residues upstream of the C-end. Overall, our study not only provides structural insight into CRL2-mediated protein turnover but also serves as the basis for future structure-based chemical probe design. | |||||||||||||||||||||||||||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 907.6 KB | 表示 | ![]() |
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PDB形式 | ![]() | 730.5 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 493 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 545.9 KB | 表示 | |
XML形式データ | ![]() | 90.2 KB | 表示 | |
CIF形式データ | ![]() | 138.3 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 36133MC ![]() 8jalC ![]() 8jaqC ![]() 8jarC ![]() 8jauC ![]() 8javC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 5種, 18分子 ABJKEILUCGMQDHNTRV
#1: タンパク質 | 分子量: 66945.258 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #2: タンパク質 | 分子量: 87068.836 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #3: タンパク質 | 分子量: 13147.781 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #4: タンパク質 | 分子量: 10843.420 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #6: タンパク質 | 分子量: 12289.977 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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-タンパク質・ペプチド / 非ポリマー , 2種, 11分子 SFO

#5: タンパク質・ペプチド | 分子量: 1913.230 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #7: 化合物 | ChemComp-ZN / |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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Has protein modification | N |
-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 |
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試料調製
構成要素 | 名称: CRL2APPBP2 E3 liganse / タイプ: COMPLEX / Entity ID: #1-#6 / 由来: MULTIPLE SOURCES |
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分子量 | 値: 400 kDa/nm / 実験値: NO |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.54 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 135810 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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