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基本情報
登録情報 | データベース: PDB / ID: 8viz | |||||||||||||||||||||
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タイトル | Structure of full-length gelsolin bound to the barbed end of F-actin | |||||||||||||||||||||
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![]() | PROTEIN BINDING / cytoskeleton / actin / cell motility | |||||||||||||||||||||
機能・相同性 | ![]() striated muscle atrophy / regulation of establishment of T cell polarity / regulation of plasma membrane raft polarization / regulation of receptor clustering / renal protein absorption / positive regulation of keratinocyte apoptotic process / positive regulation of protein processing in phagocytic vesicle / positive regulation of actin nucleation / phosphatidylinositol 3-kinase catalytic subunit binding / actin cap ...striated muscle atrophy / regulation of establishment of T cell polarity / regulation of plasma membrane raft polarization / regulation of receptor clustering / renal protein absorption / positive regulation of keratinocyte apoptotic process / positive regulation of protein processing in phagocytic vesicle / positive regulation of actin nucleation / phosphatidylinositol 3-kinase catalytic subunit binding / actin cap / regulation of podosome assembly / myosin II binding / host-mediated suppression of symbiont invasion / actin filament severing / barbed-end actin filament capping / actin filament depolymerization / actin filament capping / actin polymerization or depolymerization / cell projection assembly / cardiac muscle cell contraction / Sensory processing of sound by outer hair cells of the cochlea / podosome / relaxation of cardiac muscle / cytoskeletal motor activator activity / phagocytosis, engulfment / cortical actin cytoskeleton / myosin heavy chain binding / hepatocyte apoptotic process / tropomyosin binding / troponin I binding / filamentous actin / mesenchyme migration / actin filament bundle / actin filament bundle assembly / skeletal muscle myofibril / striated muscle thin filament / sarcoplasm / skeletal muscle thin filament assembly / actin monomer binding / cilium assembly / Caspase-mediated cleavage of cytoskeletal proteins / stress fiber / skeletal muscle fiber development / phagocytic vesicle / titin binding / response to muscle stretch / phosphatidylinositol-4,5-bisphosphate binding / actin filament polymerization / central nervous system development / actin filament organization / filopodium / actin filament / protein destabilization / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 / cellular response to type II interferon / calcium-dependent protein binding / actin filament binding / lamellipodium / actin cytoskeleton / actin binding / cell body / secretory granule lumen / blood microparticle / amyloid fibril formation / ficolin-1-rich granule lumen / hydrolase activity / protein domain specific binding / Amyloid fiber formation / focal adhesion / calcium ion binding / Neutrophil degranulation / positive regulation of gene expression / magnesium ion binding / extracellular space / extracellular exosome / extracellular region / ATP binding / identical protein binding / plasma 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: 2.63 Å | |||||||||||||||||||||
![]() | Barrie, K.R. / Rebowski, G. / Dominguez, R. | |||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Mechanism of actin filament severing and capping by gelsolin. 著者: Kyle R Barrie / Grzegorz Rebowski / Roberto Dominguez / ![]() 要旨: Gelsolin is the prototypical member of a family of Ca-activated F-actin severing and capping proteins. Here we report structures of Ca-bound human gelsolin at the barbed end of F-actin. One structure ...Gelsolin is the prototypical member of a family of Ca-activated F-actin severing and capping proteins. Here we report structures of Ca-bound human gelsolin at the barbed end of F-actin. One structure reveals gelsolin's six domains (G1G6) and interdomain linkers wrapping around F-actin, while another shows domains G1G3-a fragment observed during apoptosis-binding on both sides of F-actin. Conformational changes that trigger severing occur on one side of F-actin with G1G6 and on both sides with G1G3. Gelsolin remains bound after severing, blocking subunit exchange. #1: ジャーナル: bioRxiv / 年: 2024 タイトル: Mechanism of Actin Filament Severing and Capping by Gelsolin. 著者: Kyle R Barrie / Grzegorz Rebowski / Roberto Dominguez 要旨: Gelsolin is the prototypical member of a family of Ca -dependent F-actin severing and capping proteins. A structure of Ca -bound full-length gelsolin at the barbed end shows domains G1G6 and the ...Gelsolin is the prototypical member of a family of Ca -dependent F-actin severing and capping proteins. A structure of Ca -bound full-length gelsolin at the barbed end shows domains G1G6 and the inter-domain linkers wrapping around F-actin. Another structure shows domains G1G3, a fragment produced during apoptosis, on both sides of F-actin. Conformational changes that trigger severing occur on one side of F-actin with G1G6 and on both sides with G1G3. Gelsolin remains bound after severing, blocking subunit exchange. | |||||||||||||||||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 576.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 469.8 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 | ![]() 43274MC ![]() 8vkhC 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: 41875.633 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: 82737.680 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #3: 化合物 | ChemComp-ADP / #4: 化合物 | ChemComp-CA / #5: 化合物 | ChemComp-ATP / | 研究の焦点であるリガンドがあるか | N | Has protein modification | Y | |
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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 |
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分子量 |
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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 | 装置: FEI VITROBOT MARK IV / 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: OTHER / 加速電圧: 300 kV / 照射モード: OTHER |
電子レンズ | モード: OTHER / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 500 nm |
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) |
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解析
EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.63 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 94956 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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