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基本情報
登録情報 | データベース: PDB / ID: 9bw5 | ||||||
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タイトル | Human Vault Cage | ||||||
![]() | Major vault protein | ||||||
![]() | PROTEIN TRANSPORT / Vault / Vault Cage / MVP / Major Vault Protein / SPFH / PARP4 / Poly(ADP-ribose)Polymerase 4 / Poly(ADP-ribose)Polymerase / MINT / Ribonucleoprotein / Megadalton complex / TEP1 / vault RNA | ||||||
機能・相同性 | ![]() negative regulation of protein tyrosine kinase activity / protein activation cascade / negative regulation of protein autophosphorylation / ERBB signaling pathway / negative regulation of epidermal growth factor receptor signaling pathway / mRNA transport / nuclear pore / protein transport / protein phosphatase binding / secretory granule lumen ...negative regulation of protein tyrosine kinase activity / protein activation cascade / negative regulation of protein autophosphorylation / ERBB signaling pathway / negative regulation of epidermal growth factor receptor signaling pathway / mRNA transport / nuclear pore / protein transport / protein phosphatase binding / secretory granule lumen / ficolin-1-rich granule lumen / cytoskeleton / cell population proliferation / ribonucleoprotein complex / Neutrophil degranulation / protein kinase binding / perinuclear region of cytoplasm / extracellular exosome / extracellular region / identical protein binding / nucleus / membrane / 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: 3.3 Å | ||||||
![]() | Lodwick, J.E. / Zhao, M. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into the roles of PARP4 and NAD binding in the human vault cage. 著者: Jane E Lodwick / Rong Shen / Satchal Erramilli / Yuan Xie / Karolina Roganowicz / Simone Ritchey / Anthony A Kossiakoff / Minglei Zhao / ![]() ![]() 要旨: Vault is a massive ribonucleoprotein complex found across Eukaryota. The major vault protein (MVP) oligomerizes into an ovular cage, which contains several minor vault components (MVCs) and is ...Vault is a massive ribonucleoprotein complex found across Eukaryota. The major vault protein (MVP) oligomerizes into an ovular cage, which contains several minor vault components (MVCs) and is thought to transport transiently bound "cargo" molecules. Vertebrate vaults house a poly (ADP-ribose) polymerase (known as PARP4 in humans), which is the only MVC with known enzymatic activity. Despite being discovered decades ago, the molecular basis for PARP4's interaction with MVP remains unclear. In this study, we determined the structure of the human vault cage in complex with PARP4 and its enzymatic substrate NAD. The structures reveal atomic-level details of the protein-binding interface, as well as unexpected binding sites for NAD and related nucleotides within the interior of the vault cage. In addition, proteomics data show that human vaults purified from wild-type and PARP4-depleted cells interact with distinct subsets of proteins. Our results thereby support a model in which PARP4's specific incorporation into the vault cage helps to regulate vault's selection of cargo and its subcellular localization. Further, PARP4's proximity to MVP's NAD-binding sites could support its enzymatic function within the vault. #1: ![]() タイトル: Structural Insights into the Roles of PARP4 and NAD in the Human Vault Cage. 要旨: Vault is a massive ribonucleoprotein complex found across Eukaryota. The major vault protein (MVP) oligomerizes into an ovular cage, which contains several minor vault components (MVCs) and is ...Vault is a massive ribonucleoprotein complex found across Eukaryota. The major vault protein (MVP) oligomerizes into an ovular cage, which contains several minor vault components (MVCs) and is thought to transport transiently bound "cargo" molecules. Vertebrate vaults house a poly (ADP-ribose) polymerase (known as PARP4 in humans), which is the only MVC with known enzymatic activity. Despite being discovered decades ago, the molecular basis for PARP4's interaction with MVP remains unclear. In this study, we determined the structure of the human vault cage in complex with PARP4 and its enzymatic substrate NAD . The structures reveal atomic-level details of the protein-binding interface, as well as unexpected NAD -binding pockets within the interior of the vault cage. In addition, proteomics data show that human vaults purified from wild-type and PARP4-depleted cells interact with distinct subsets of proteins. Our results thereby support a model in which PARP4's specific incorporation into the vault cage helps to regulate vault's selection of cargo and its subcellular localization. Further, PARP4's proximity to MVP's NAD -binding sites could support its enzymatic function within the vault. #2: ジャーナル: Protein Sci / 年: 2018 タイトル: UCSF ChimeraX: Meeting modern challenges in visualization and analysis. 著者: Thomas D Goddard / Conrad C Huang / Elaine C Meng / Eric F Pettersen / Gregory S Couch / John H Morris / Thomas E Ferrin / ![]() 要旨: UCSF ChimeraX is next-generation software for the visualization and analysis of molecular structures, density maps, 3D microscopy, and associated data. It addresses challenges in the size, scope, and ...UCSF ChimeraX is next-generation software for the visualization and analysis of molecular structures, density maps, 3D microscopy, and associated data. It addresses challenges in the size, scope, and disparate types of data attendant with cutting-edge experimental methods, while providing advanced options for high-quality rendering (interactive ambient occlusion, reliable molecular surface calculations, etc.) and professional approaches to software design and distribution. This article highlights some specific advances in the areas of visualization and usability, performance, and extensibility. ChimeraX is free for noncommercial use and is available from http://www.rbvi.ucsf.edu/chimerax/ for Windows, Mac, and Linux. #3: ![]() タイトル: The structure of rat liver vault at 3.5 angstrom resolution. 著者: Hideaki Tanaka / Koji Kato / Eiki Yamashita / Tomoyuki Sumizawa / Yong Zhou / Min Yao / Kenji Iwasaki / Masato Yoshimura / Tomitake Tsukihara / ![]() 要旨: Vaults are among the largest cytoplasmic ribonucleoprotein particles and are found in numerous eukaryotic species. Roles in multidrug resistance and innate immunity have been suggested, but the ...Vaults are among the largest cytoplasmic ribonucleoprotein particles and are found in numerous eukaryotic species. Roles in multidrug resistance and innate immunity have been suggested, but the cellular function remains unclear. We have determined the x-ray structure of rat liver vault at 3.5 angstrom resolution and show that the cage structure consists of a dimer of half-vaults, with each half-vault comprising 39 identical major vault protein (MVP) chains. Each MVP monomer folds into 12 domains: nine structural repeat domains, a shoulder domain, a cap-helix domain, and a cap-ring domain. Interactions between the 42-turn-long cap-helix domains are key to stabilizing the particle. The shoulder domain is structurally similar to a core domain of stomatin, a lipid-raft component in erythrocytes and epithelial cells. | ||||||
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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 | ![]() | 311.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 251.3 KB | 表示 | ![]() |
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-検証レポート
文書・要旨 | ![]() | 1.2 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.2 MB | 表示 | |
XML形式データ | ![]() | 77.6 KB | 表示 | |
CIF形式データ | ![]() | 114.9 KB | 表示 | |
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-関連構造データ
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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: 99452.766 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() Has protein modification | N | |
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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: Oligomerized human MVP / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT | |||||||||||||||||||||||||
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分子量 | 値: 7.8 MDa / 実験値: NO | |||||||||||||||||||||||||
由来(天然) | 生物種: ![]() | |||||||||||||||||||||||||
由来(組換発現) | 生物種: ![]() | |||||||||||||||||||||||||
緩衝液 | pH: 8 / 詳細: 50 mM HEPES, 5 mM MgCl2, 5 mM CaCl2, 0.25 mM DTT | |||||||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 1.6 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: Sample was monodisperse | |||||||||||||||||||||||||
試料支持 | 詳細: Quantifoil grids with a 2 nm continuous carbon coating were subjected to a 15 s, 5W plasma cleaning program in O2 gas グリッドの材料: COPPER / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | |||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 281 K / 詳細: Vitrification carried out under standard conditions |
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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 / 詳細: Preliminary grid screening was performed manually. |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 64000 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1000 nm / Cs: 2.7 mm |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 45 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 実像数: 6968 詳細: Images were collected in movie mode, with 40 frames per image. |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum |
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解析
EMソフトウェア |
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CTF補正 | 詳細: CTF correction was performed when movies were imported into cryoSPARC Live タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 205194 | ||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: D39 (2回x39回 2面回転対称) | ||||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 98674 / アルゴリズム: BACK PROJECTION / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL 詳細: The starting model was the rat homologue of MVP from a previous crystal structure of the vault cage (PDB accession no 4V60). The final model was refined in real space and validated using PHENIX. | ||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 4v60 PDB chain-ID: A / Accession code: 4v60 / Chain residue range: 1-845 / Pdb chain residue range: 1-845 / Source name: PDB / タイプ: experimental model |