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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||||||||
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| タイトル | Cryo-EM structure of the cofilactin barbed end bound by two AIP1 molecules | |||||||||||||||
マップデータ | Main, sharpened cryo-EM density map of the cofilactin barbed end bound by two AIP1 molecules | |||||||||||||||
試料 |
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キーワード | actin / cofilin / AIP1 / barbed end / filament / cytoskeleton / STRUCTURAL PROTEIN | |||||||||||||||
| 機能・相同性 | 機能・相同性情報establishment of planar polarity of follicular epithelium / regulation of actin filament depolymerization / regulation of oligodendrocyte differentiation / cellular response to ether / cofilin-actin rod / positive regulation of protein localization to cell leading edge / positive regulation of establishment of cell polarity regulating cell shape / MGMT-mediated DNA damage reversal / negative regulation of unidimensional cell growth / positive regulation of barbed-end actin filament capping ...establishment of planar polarity of follicular epithelium / regulation of actin filament depolymerization / regulation of oligodendrocyte differentiation / cellular response to ether / cofilin-actin rod / positive regulation of protein localization to cell leading edge / positive regulation of establishment of cell polarity regulating cell shape / MGMT-mediated DNA damage reversal / negative regulation of unidimensional cell growth / positive regulation of barbed-end actin filament capping / neural fold formation / negative regulation of lamellipodium assembly / negative regulation of postsynaptic density organization / methylated-DNA-[protein]-cysteine S-methyltransferase / methylated-DNA-[protein]-cysteine S-methyltransferase activity / actin filament fragmentation / maintenance of epithelial cell apical/basal polarity / positive regulation of actin filament depolymerization / negative regulation of actin filament bundle assembly / positive regulation of norepinephrine uptake / positive regulation of embryonic development / modification of postsynaptic actin cytoskeleton / DNA-methyltransferase activity / negative regulation of actin filament depolymerization / bBAF complex / Formation of the embryonic stem cell BAF (esBAF) complex / cellular response to cytochalasin B / neutrophil migration / cortical cytoskeleton organization / npBAF complex / brahma complex / nBAF complex / Formation of the canonical BAF (cBAF) complex / regulation of transepithelial transport / Formation of neuronal progenitor and neuronal BAF (npBAF and nBAF) / actin filament severing / apical junction assembly / morphogenesis of a polarized epithelium / Formation of the polybromo-BAF (pBAF) complex / structural constituent of postsynaptic actin cytoskeleton / Formation of annular gap junctions / Formation of the dystrophin-glycoprotein complex (DGC) / host-mediated activation of viral process / Gap junction degradation / Formation of the non-canonical BAF (ncBAF) complex / GBAF complex / regulation of G0 to G1 transition / protein localization to adherens junction / positive regulation of synaptic plasticity / Cell-extracellular matrix interactions / regulation of dendritic spine morphogenesis / establishment of spindle localization / dense body / negative regulation of cell adhesion / DNA alkylation repair / Folding of actin by CCT/TriC / Tat protein binding / regulation of ventricular cardiac muscle cell membrane repolarization / negative regulation of cell motility / actin filament depolymerization / postsynaptic actin cytoskeleton / RHO GTPases Activate ROCKs / RSC-type complex / negative regulation of cell size / Regulation of CDH1 Function / cellular response to interleukin-6 / neutrophil mediated immunity / regulation of double-strand break repair / regulation of nucleotide-excision repair / podosome / Prefoldin mediated transfer of substrate to CCT/TriC / regulation of cell morphogenesis / Adherens junctions interactions / RHOF GTPase cycle / adherens junction assembly / locomotion / negative regulation of dendritic spine maintenance / apical protein localization / cell projection organization / Sensory processing of sound by outer hair cells of the cochlea / platelet formation / Interaction between L1 and Ankyrins / SWI/SNF complex / regulation of mitotic metaphase/anaphase transition / tight junction / positive regulation of cell motility / Sensory processing of sound by inner hair cells of the cochlea / positive regulation of T cell differentiation / neural crest cell migration / sarcomere organization / apical junction complex / cortical actin cytoskeleton / phosphatidylinositol bisphosphate binding / cellular response to insulin-like growth factor stimulus / positive regulation of double-strand break repair / maintenance of blood-brain barrier / establishment of cell polarity / regulation of norepinephrine uptake / transporter regulator activity / positive regulation of dendritic spine development 類似検索 - 分子機能 | |||||||||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||||||||
| 手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.16 Å | |||||||||||||||
データ登録者 | Oosterheert W / Boiero Sanders M / Hofnagel O / Bieling P / Raunser S | |||||||||||||||
| 資金援助 | ドイツ, European Union, 4件
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引用 | ジャーナル: Cell / 年: 2025タイトル: Choreography of rapid actin filament disassembly by coronin, cofilin, and AIP1. 著者: Wout Oosterheert / Micaela Boiero Sanders / Oliver Hofnagel / Peter Bieling / Stefan Raunser / ![]() 要旨: Rapid remodeling of actin filament (F-actin) networks is essential for the movement and morphogenesis of eukaryotic cells. The conserved actin-binding proteins coronin, cofilin, and actin-interacting ...Rapid remodeling of actin filament (F-actin) networks is essential for the movement and morphogenesis of eukaryotic cells. The conserved actin-binding proteins coronin, cofilin, and actin-interacting protein 1 (AIP1) act in synergy to promote rapid F-actin network disassembly, but the underlying mechanisms have remained elusive. Here, using cryo-electron microscopy (cryo-EM), we uncover the concerted molecular actions of coronin, cofilin, and AIP1 that lead to actin filament aging and severing. We find that the cooperative binding of coronin allosterically promotes inorganic phosphate release from F-actin and induces filament undertwisting, thereby priming the filament for cofilin binding. Cofilin then displaces coronin from the filament via a strand-restricted cooperative binding mechanism. The resulting cofilactin serves as a high-affinity platform for AIP1, which induces severing by acting as a clamp that disrupts inter-subunit filament contacts. In this "molecular squeezing" mechanism, AIP1 and not cofilin is responsible for filament severing. Our work redefines the role of key disassembly factors in actin dynamics. | |||||||||||||||
| 履歴 |
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_53122.map.gz | 778.5 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-53122-v30.xml emd-53122.xml | 30.9 KB 30.9 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_53122_fsc.xml | 20 KB | 表示 | FSCデータファイル |
| 画像 | emd_53122.png | 169.2 KB | ||
| マスクデータ | emd_53122_msk_1.map | 824 MB | マスクマップ | |
| Filedesc metadata | emd-53122.cif.gz | 8.2 KB | ||
| その他 | emd_53122_additional_1.map.gz emd_53122_half_map_1.map.gz emd_53122_half_map_2.map.gz | 409.3 MB 763.9 MB 763.9 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-53122 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-53122 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 9qfwMC ![]() 9qewC ![]() 9qeyC ![]() 9qf2C ![]() 9qfbC ![]() 9qfdC ![]() 9qfeC ![]() 9qfgC ![]() 9qfjC ![]() 9qfkC ![]() 9qfoC ![]() 9qfqC C: 同じ文献を引用 ( M: このマップから作成された原子モデル |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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| 「今月の分子」の関連する項目 |
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マップ
| ファイル | ダウンロード / ファイル: emd_53122.map.gz / 形式: CCP4 / 大きさ: 824 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 注釈 | Main, sharpened cryo-EM density map of the cofilactin barbed end bound by two AIP1 molecules | ||||||||||||||||||||||||||||||||||||
| 投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
| ボクセルのサイズ | X=Y=Z: 0.68 Å | ||||||||||||||||||||||||||||||||||||
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
-マスク #1
| ファイル | emd_53122_msk_1.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
-追加マップ: Additional unsharpened map of the cofilactin barbed end...
| ファイル | emd_53122_additional_1.map | ||||||||||||
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| 注釈 | Additional unsharpened map of the cofilactin barbed end bound by two AIP1 molecules | ||||||||||||
| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: Half map B of the cofilactin barbed end bound by two AIP1 molecules
| ファイル | emd_53122_half_map_1.map | ||||||||||||
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| 注釈 | Half map B of the cofilactin barbed end bound by two AIP1 molecules | ||||||||||||
| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: Half map A of the cofilactin barbed end bound by two AIP1 molecules
| ファイル | emd_53122_half_map_2.map | ||||||||||||
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| 注釈 | Half map A of the cofilactin barbed end bound by two AIP1 molecules | ||||||||||||
| 投影像・断面図 |
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| 密度ヒストグラム |
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試料の構成要素
-全体 : Cofilactin barbed end bound by two AIP1 molecules
| 全体 | 名称: Cofilactin barbed end bound by two AIP1 molecules |
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| 要素 |
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-超分子 #1: Cofilactin barbed end bound by two AIP1 molecules
| 超分子 | 名称: Cofilactin barbed end bound by two AIP1 molecules / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#3 詳細: Barbed end of the actin filament fully decorated by Cofilin-1 and bound by two AIP1 molecules |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-超分子 #2: Actin filament
| 超分子 | 名称: Actin filament / タイプ: complex / ID: 2 / 親要素: 1 / 含まれる分子: #1 |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-超分子 #3: Cofilin-1
| 超分子 | 名称: Cofilin-1 / タイプ: complex / ID: 3 / 親要素: 1 / 含まれる分子: #2 |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-超分子 #4: AIP1
| 超分子 | 名称: AIP1 / タイプ: complex / ID: 4 / 親要素: 1 / 含まれる分子: #3 |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: Actin, cytoplasmic 1, N-terminally processed
| 分子 | 名称: Actin, cytoplasmic 1, N-terminally processed / タイプ: protein_or_peptide / ID: 1 / コピー数: 5 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 41.632422 KDa |
| 組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
| 配列 | 文字列: DDDIAALVVD NGSGMCKAGF AGDDAPRAVF PSIVGRPRHQ GVMVGMGQKD SYVGDEAQSK RGILTLKYPI E(HIC)GIVT NWD DMEKIWHHTF YNELRVAPEE HPVLLTEAPL NPKANREKMT QIMFETFNTP AMYVAIQAVL SLYASGRTTG IVMDSGD GV ...文字列: DDDIAALVVD NGSGMCKAGF AGDDAPRAVF PSIVGRPRHQ GVMVGMGQKD SYVGDEAQSK RGILTLKYPI E(HIC)GIVT NWD DMEKIWHHTF YNELRVAPEE HPVLLTEAPL NPKANREKMT QIMFETFNTP AMYVAIQAVL SLYASGRTTG IVMDSGD GV THTVPIYEGY ALPHAILRLD LAGRDLTDYL MKILTERGYS FTTTAEREIV RDIKEKLCYV ALDFEQEMAT AASSSSLE K SYELPDGQVI TIGNERFRCP EALFQPSFLG MESAGIHETT FNSIMKCDVD IRKDLYANTV LSGGTTMYPG IADRMQKEI TALAPSTMKI KIIAPPERKY SVWIGGSILA SLSTFQQMWI SKQEYDESGP SIVHRKCF UniProtKB: Actin, cytoplasmic 1 |
-分子 #2: Cofilin-1
| 分子 | 名称: Cofilin-1 / タイプ: protein_or_peptide / ID: 2 / コピー数: 5 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 18.532531 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: MASGVAVSDG VIKVFNDMKV RKSSTPEEVK KRKKAVLFCL SEDKKNIILE EGKEILVGDV GQTVDDPYAT FVKMLPDKDC RYALYDATY ETKESKKEDL VFIFWAPESA PLKSKMIYAS SKDAIKKKLT GIKHELQANC YEEVKDRCTL AEKLGGSAVI S LEGKPL UniProtKB: Cofilin-1 |
-分子 #3: WD repeat-containing protein 1,Methylated-DNA--protein-cysteine m...
| 分子 | 名称: WD repeat-containing protein 1,Methylated-DNA--protein-cysteine methyltransferase タイプ: protein_or_peptide / ID: 3 詳細: AIP1 has a C-terminal SNAP tag,AIP1 has a C-terminal SNAP tag コピー数: 2 / 光学異性体: LEVO EC番号: methylated-DNA-[protein]-cysteine S-methyltransferase |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 86.760906 KDa |
| 組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
| 配列 | 文字列: GAMGSMPYEI KKVFASLPQV ERGVSKIIGG DPKGNNFLYT NGKCVILRNI DNPALADIYT EHAHQVVVAK YAPSGFYIAS GDVSGKLRI WDTTQKEHLL KYEYQPFAGK IKDIAWTEDS KRIAVVGEGR EKFGAVFLWD SGSSVGEITG HNKVINSVDI K QSRPYRLA ...文字列: GAMGSMPYEI KKVFASLPQV ERGVSKIIGG DPKGNNFLYT NGKCVILRNI DNPALADIYT EHAHQVVVAK YAPSGFYIAS GDVSGKLRI WDTTQKEHLL KYEYQPFAGK IKDIAWTEDS KRIAVVGEGR EKFGAVFLWD SGSSVGEITG HNKVINSVDI K QSRPYRLA TGSDDNCAAF FEGPPFKFKF TIGDHSRFVN CVRFSPDGNR FATASADGQI YIYDGKTGEK VCALGGSKAH DG GIYAISW SPDSTHLLSA SGDKTSKIWD VSVNSVVSTF PMGSTVLDQQ LGCLWQKDHL LSVSLSGYIN YLDRNNPSKP LHV IKGHSK SIQCLTVHKN GGKSYIYSGS HDGHINYWDS ETGENDSFAG KGHTNQVSRM TVDESGQLIS CSMDDTVRYT SLML RDYSG QGVVKLDVQP KCVAVGPGGY AVVVCIGQIV LLKDQRKCFS IDNPGYEPEV VAVHPGGDTV AIGGVDGNVR LYSIL GTTL KDEGKLLEAK GPVTDVAYSH DGAFLAVCDA SKVVTVFSVA DGYSENNVFY GHHAKIVCLA WSPDNEHFAS GGMDMM VYV WTLSDPETRV KIQDAHRLHH VSSLAWLDEH TLVTTSHDAS VKEWTITYGT GGGGSGGGGS MDKDCEMKRT TLDSPLG KL ELSGCEQGLH EIKLLGKGTS AADAVEVPAP AAVLGGPEPL MQATAWLNAY FHQPEAIEEF PVPALHHPVF QQESFTRQ V LWKLLKVVKF GEVISYQQLA ALAGNPAATA AVKTALSGNP VPILIPCHRV VSSSGAVGGY EGGLAVKEWL LAHEGHRLG KPGLG UniProtKB: WD repeat-containing protein 1, Methylated-DNA--protein-cysteine methyltransferase |
-分子 #4: MAGNESIUM ION
| 分子 | 名称: MAGNESIUM ION / タイプ: ligand / ID: 4 / コピー数: 5 / 式: MG |
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| 分子量 | 理論値: 24.305 Da |
-分子 #5: ADENOSINE-5'-DIPHOSPHATE
| 分子 | 名称: ADENOSINE-5'-DIPHOSPHATE / タイプ: ligand / ID: 5 / コピー数: 5 / 式: ADP |
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| 分子量 | 理論値: 427.201 Da |
| Chemical component information | ![]() ChemComp-ADP: |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
| 試料の集合状態 | filament |
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試料調製
| 緩衝液 | pH: 7.1 構成要素:
詳細: 1xKMEH (10 mM HEPES pH 7.1, 100 mM KCl, 2 mM MgCl2, 1 mM EGTA, 0.5 mM TCEP, 0.015% Tween20) | ||||||||||||||
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| グリッド | モデル: Quantifoil R2/1 / 材質: GOLD / メッシュ: 200 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY | ||||||||||||||
| 凍結 | 凍結剤: ETHANE-PROPANE / チャンバー内湿度: 100 % / チャンバー内温度: 286 K / 装置: FEI VITROBOT MARK IV |
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電子顕微鏡法
| 顕微鏡 | TFS KRIOS |
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| 特殊光学系 | 球面収差補正装置: Data were collected using a 300 kV Titan Krios G2 microscope (Thermo Fisher Scientific) equipped with an in-column Cs corrector 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: 15 eV |
| 撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 1 / 実像数: 23082 / 平均電子線量: 71.7 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | C2レンズ絞り径: 50.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 0.01 mm / 最大 デフォーカス(公称値): 2.7 µm / 最小 デフォーカス(公称値): 1.2 µm |
| 試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
ムービー
コントローラー
万見について




キーワード
Homo sapiens (ヒト)
データ登録者
ドイツ, European Union, 4件
引用














































Z (Sec.)
Y (Row.)
X (Col.)




















































Trichoplusia ni (イラクサキンウワバ)

解析
FIELD EMISSION GUN


