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基本情報
登録情報 | データベース: PDB / ID: 8w4j | ||||||
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タイトル | Cryo-EM structure of the KLHL22 E3 ligase bound to human glutamate dehydrogenase I | ||||||
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![]() | STRUCTURAL PROTEIN / E3 ligase | ||||||
機能・相同性 | ![]() L-leucine binding / glutamate dehydrogenase [NAD(P)+] activity / tricarboxylic acid metabolic process / glutamate dehydrogenase [NAD(P)+] / polar microtubule / glutamate biosynthetic process / glutamate dehydrogenase (NAD+) activity / glutamate dehydrogenase (NADP+) activity / Glutamate and glutamine metabolism / L-glutamate catabolic process ...L-leucine binding / glutamate dehydrogenase [NAD(P)+] activity / tricarboxylic acid metabolic process / glutamate dehydrogenase [NAD(P)+] / polar microtubule / glutamate biosynthetic process / glutamate dehydrogenase (NAD+) activity / glutamate dehydrogenase (NADP+) activity / Glutamate and glutamine metabolism / L-glutamate catabolic process / cellular response to L-leucine / positive regulation of T cell mediated immune response to tumor cell / glutamine metabolic process / negative regulation of type I interferon production / Cul3-RING ubiquitin ligase complex / mitotic spindle assembly checkpoint signaling / mitotic sister chromatid segregation / NAD+ binding / protein monoubiquitination / ubiquitin-like ligase-substrate adaptor activity / intercellular bridge / 14-3-3 protein binding / substantia nigra development / positive regulation of TORC1 signaling / Mitochondrial protein degradation / negative regulation of autophagy / cellular response to amino acid stimulus / Transcriptional activation of mitochondrial biogenesis / ADP binding / positive regulation of insulin secretion / positive regulation of T cell activation / mitotic spindle / Antigen processing: Ubiquitination & Proteasome degradation / Neddylation / microtubule cytoskeleton / positive regulation of cell growth / ubiquitin-dependent protein catabolic process / proteasome-mediated ubiquitin-dependent protein catabolic process / lysosome / mitochondrial matrix / cell division / intracellular membrane-bounded organelle / centrosome / GTP binding / endoplasmic reticulum / protein homodimerization activity / mitochondrion / ATP binding / nucleus / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
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: 3.06 Å | ||||||
![]() | Su, M.-Y. / Su, M.-Y. | ||||||
資金援助 | 1件
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![]() | ![]() タイトル: Cryo-EM structure of the KLHL22 E3 ligase bound to an oligomeric metabolic enzyme. 著者: Fei Teng / Yang Wang / Ming Liu / Shuyun Tian / Goran Stjepanovic / Ming-Yuan Su / ![]() 要旨: CULLIN-RING ligases constitute the largest group of E3 ubiquitin ligases. While some CULLIN family members recruit adapters before engaging further with different substrate receptors, homo-dimeric ...CULLIN-RING ligases constitute the largest group of E3 ubiquitin ligases. While some CULLIN family members recruit adapters before engaging further with different substrate receptors, homo-dimeric BTB-Kelch family proteins combine adapter and substrate receptor into a single polypeptide for the CULLIN3 family. However, the entire structural assembly and molecular details have not been elucidated to date. Here, we present a cryo-EM structure of the CULLIN3 in complex with Kelch-like protein 22 (KLHL22) and a mitochondrial glutamate dehydrogenase complex I (GDH1) at 3.06 Å resolution. The structure adopts a W-shaped architecture formed by E3 ligase dimers. Three CULLIN3 dimers were found to be dynamically associated with a single GDH1 hexamer. CULLIN3 ligase mediated the polyubiquitination of GDH1 in vitro. Together, these results enabled the establishment of a structural model for understanding the complete assembly of BTB-Kelch proteins with CULLIN3 and how together they recognize oligomeric substrates and target them for ubiquitination. | ||||||
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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 | ![]() | 627.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 497.5 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 37266MC ![]() 8kgyC ![]() 8khpC C: 同じ文献を引用 ( 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 ![]() |
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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
#1: タンパク質 | 分子量: 61480.746 Da / 分子数: 6 / 由来タイプ: 天然 / 由来: (天然) ![]() #2: タンパク質 | 分子量: 71744.594 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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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 |
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試料調製
構成要素 | 名称: the CULLIN3-KLHL22-RBX1 E3 ligase bound to glutamate dehydrogenase I タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 実験値: NO |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.4 |
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): 1900 nm / 最小 デフォーカス(公称値): 1100 nm |
撮影 | 電子線照射量: 1.072 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 3.06 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 62817 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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