- PDB-7nd2: Cryo-EM structure of the human FERRY complex -
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基本情報
登録情報
データベース: PDB / ID: 7nd2
タイトル
Cryo-EM structure of the human FERRY complex
要素
Glutamine amidotransferase-like class 1 domain-containing protein 1
Protein phosphatase 1 regulatory subunit 21
Quinone oxidoreductase-like protein 1
キーワード
RNA BINDING PROTEIN / Human FERRY complex / Five-subunit Early endosome RNA and Ribosome intermediarY complex / Intracellular RNA transport / Early Endosome-associated transport of RNA
機能・相同性
機能・相同性情報
quinone metabolic process / glyoxalase III activity / NADPH:quinone reductase activity / methylglyoxal catabolic process to D-lactate via S-lactoyl-glutathione / 酸化還元酵素 / NADP binding / early endosome / extracellular exosome / membrane / cytoplasm / cytosol 類似検索 - 分子機能
Uncharacterised domain KLRAQ/TTKRSYEDQ, N-terminal / Uncharacterised domain KLRAQ/TTKRSYEDQ, C-terminal / Protein phosphatase 1 regulatory subunit 21 / Predicted coiled-coil domain-containing protein / Protein phosphatase 1 regulatory subunit 21, six-helix bundle / Predicted coiled-coil domain-containing protein / Quinone oxidoreductase-like protein 1 / Polyketide synthase, enoylreductase domain / Enoylreductase / GroES-like superfamily ...Uncharacterised domain KLRAQ/TTKRSYEDQ, N-terminal / Uncharacterised domain KLRAQ/TTKRSYEDQ, C-terminal / Protein phosphatase 1 regulatory subunit 21 / Predicted coiled-coil domain-containing protein / Protein phosphatase 1 regulatory subunit 21, six-helix bundle / Predicted coiled-coil domain-containing protein / Quinone oxidoreductase-like protein 1 / Polyketide synthase, enoylreductase domain / Enoylreductase / GroES-like superfamily / Class I glutamine amidotransferase-like / NAD(P)-binding domain superfamily 類似検索 - ドメイン・相同性
Quinone oxidoreductase-like protein 1 / Protein phosphatase 1 regulatory subunit 21 / Glutamine amidotransferase-like class 1 domain-containing protein 1 類似検索 - 構成要素
ジャーナル: Mol Cell / 年: 2023 タイトル: Structural basis of mRNA binding by the human FERRY Rab5 effector complex. 著者: Dennis Quentin / Jan S Schuhmacher / Björn U Klink / Jeni Lauer / Tanvir R Shaikh / Pim J Huis In 't Veld / Luisa M Welp / Henning Urlaub / Marino Zerial / Stefan Raunser / 要旨: The pentameric FERRY Rab5 effector complex is a molecular link between mRNA and early endosomes in mRNA intracellular distribution. Here, we determine the cryo-EM structure of human FERRY. It reveals ...The pentameric FERRY Rab5 effector complex is a molecular link between mRNA and early endosomes in mRNA intracellular distribution. Here, we determine the cryo-EM structure of human FERRY. It reveals a unique clamp-like architecture that bears no resemblance to any known structure of Rab effectors. A combination of functional and mutational studies reveals that while the Fy-2 C-terminal coiled-coil acts as binding region for Fy-1/3 and Rab5, both coiled-coils and Fy-5 concur to bind mRNA. Mutations causing truncations of Fy-2 in patients with neurological disorders impair Rab5 binding or FERRY complex assembly. Thus, Fy-2 serves as a binding hub connecting all five complex subunits and mediating the binding to mRNA and early endosomes via Rab5. Our study provides mechanistic insights into long-distance mRNA transport and demonstrates that the particular architecture of FERRY is closely linked to a previously undescribed mode of RNA binding, involving coiled-coil domains.
A: Protein phosphatase 1 regulatory subunit 21 C: Quinone oxidoreductase-like protein 1 E: Glutamine amidotransferase-like class 1 domain-containing protein 1 F: Glutamine amidotransferase-like class 1 domain-containing protein 1 D: Quinone oxidoreductase-like protein 1 B: Protein phosphatase 1 regulatory subunit 21 H: Glutamine amidotransferase-like class 1 domain-containing protein 1 G: Glutamine amidotransferase-like class 1 domain-containing protein 1
平均露光時間: 15 sec. / 電子線照射量: 75.8 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 実像数: 1879
電子光学装置
エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV
画像スキャン
動画フレーム数/画像: 40
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解析
ソフトウェア
名称: PHENIX / バージョン: 1.18.2_3874: / 分類: 精密化
EMソフトウェア
ID
名称
カテゴリ
1
crYOLO
粒子像選択
2
EPU
画像取得
4
CTFFIND
CTF補正
7
UCSF Chimera
モデルフィッティング
10
PHENIX
モデル精密化
11
Coot
モデル精密化
12
SPHIRE
初期オイラー角割当
13
SPHIRE
最終オイラー角割当
14
SPHIRE
分類
15
SPHIRE
3次元再構成
CTF補正
タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION
粒子像の選択
選択した粒子像数: 1800000
対称性
点対称性: C2 (2回回転対称)
3次元再構成
解像度: 4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 18300 / 対称性のタイプ: POINT
原子モデル構築
詳細: To build the model for the (CRYZL1)2(PPP1r21)2(GATD1)4 core of the FERRY complex, the obtained crystal structures of CRYZL1 and GATD1 were initially fitted into the corresponding density ...詳細: To build the model for the (CRYZL1)2(PPP1r21)2(GATD1)4 core of the FERRY complex, the obtained crystal structures of CRYZL1 and GATD1 were initially fitted into the corresponding density using the rigid body fitting tool in Chimera. trRosetta, a de novo protein structure prediction algorithm that is based on direct energy minimization with restrained Rosetta, was used to obtain initial models for PPP1r21. The predicted model for the 6-helix bundle domain, containing residues 246 to 498, that matched our experimental density best was subsequently fitted similar as CRYZL1 and GATD1 using rigid body fit. Manual model building for the regions N- and C-terminal 6-helix bundle, which comprise residues 218 to 245 and 499 to 552, respectively, was further guided by secondary structure predictions of individual trRosetta runs for these regions, that include the vertical helix as well as the beginning of the two terminal coiled-coils of PPP1r21. With the resulting combined model, containing residues 2 to 349, 218 to 552 and 8 to 217 of CRYZL1, PPP1r21 and GATD1, respectively, a restrained refinement in PHENIX was performed. In the next step, the model was further refined using a combination of manual building in COOT and real-space refinement in PHENIX.