+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-19497 | ||||||||||||
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タイトル | Cryo-EM reconstruction of the formin Cdc12 bound to the barbed end of F-actin (without phalloidin) | ||||||||||||
マップデータ | Sharpened cryo-EM density map of the formin Cdc12 bound to the barbed end of F-actin (without phalloidin). | ||||||||||||
試料 |
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キーワード | actin (アクチン) / formin / Cdc12 / actin assembly. (アクチン) / STRUCTURAL PROTEIN (タンパク質) | ||||||||||||
機能・相同性 | 機能・相同性情報 F-bar domain binding / protein localization to mitotic actomyosin contractile ring / medial cortical node / mitotic actomyosin contractile ring, proximal layer / mitotic actomyosin contractile ring / medial cortex / mitotic actomyosin contractile ring assembly / positive regulation of norepinephrine uptake / cellular response to cytochalasin B / bBAF complex ...F-bar domain binding / protein localization to mitotic actomyosin contractile ring / medial cortical node / mitotic actomyosin contractile ring, proximal layer / mitotic actomyosin contractile ring / medial cortex / mitotic actomyosin contractile ring assembly / positive regulation of norepinephrine uptake / cellular response to cytochalasin B / bBAF complex / npBAF complex / postsynaptic actin cytoskeleton organization / regulation of transepithelial transport / brahma complex / nBAF complex / structural constituent of postsynaptic actin cytoskeleton / morphogenesis of a polarized epithelium / GBAF complex / postsynaptic actin cytoskeleton / protein localization to adherens junction / Formation of annular gap junctions / regulation of G0 to G1 transition / dense body / Gap junction degradation / Tat protein binding / Cell-extracellular matrix interactions / Folding of actin by CCT/TriC / regulation of double-strand break repair / regulation of nucleotide-excision repair / RSC-type complex / apical protein localization / mating projection tip / barbed-end actin filament capping / Prefoldin mediated transfer of substrate to CCT/TriC / adherens junction assembly / RHOF GTPase cycle / Adherens junctions interactions / 密着結合 / Sensory processing of sound by outer hair cells of the cochlea / SWI/SNF complex / Interaction between L1 and Ankyrins / Sensory processing of sound by inner hair cells of the cochlea / regulation of mitotic metaphase/anaphase transition / regulation of norepinephrine uptake / positive regulation of double-strand break repair / positive regulation of T cell differentiation / NuA4 histone acetyltransferase complex / regulation of synaptic vesicle endocytosis / apical junction complex / establishment or maintenance of cell polarity / cell division site / maintenance of blood-brain barrier / positive regulation of stem cell population maintenance / positive regulation of double-strand break repair via homologous recombination / cortical cytoskeleton / nitric-oxide synthase binding / regulation of cyclin-dependent protein serine/threonine kinase activity / Recycling pathway of L1 / regulation of G1/S transition of mitotic cell cycle / actin filament bundle assembly / negative regulation of cell differentiation / 刷子縁 / kinesin binding / ヘルト萼状シナプス / EPH-ephrin mediated repulsion of cells / RHO GTPases Activate WASPs and WAVEs / RHO GTPases activate IQGAPs / positive regulation of myoblast differentiation / regulation of protein localization to plasma membrane / EPHB-mediated forward signaling / substantia nigra development / actin filament polymerization / 軸索誘導 / negative regulation of protein binding / 運動性 / マイクロフィラメント / Translocation of SLC2A4 (GLUT4) to the plasma membrane / RHO GTPases Activate Formins / regulation of transmembrane transporter activity / positive regulation of cell differentiation / FCGR3A-mediated phagocytosis / 接着結合 / 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 / DNA Damage Recognition in GG-NER / Signaling by high-kinase activity BRAF mutants / Schaffer collateral - CA1 synapse / MAP2K and MAPK activation / tau protein binding / B-WICH complex positively regulates rRNA expression / structural constituent of cytoskeleton / cytoplasmic ribonucleoprotein granule / 動原体 / Regulation of actin dynamics for phagocytic cup formation / 血小板 / small GTPase binding / nuclear matrix / VEGFA-VEGFR2 Pathway / Signaling by RAF1 mutants / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF 類似検索 - 分子機能 | ||||||||||||
生物種 | Homo sapiens (ヒト) / Schizosaccharomyces pombe (分裂酵母) | ||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.54 Å | ||||||||||||
データ登録者 | Oosterheert W / Boiero Sanders M / Funk J / Prumbaum D / Raunser S / Bieling P | ||||||||||||
資金援助 | ドイツ, European Union, 3件
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引用 | ジャーナル: Science / 年: 2024 タイトル: Molecular mechanism of actin filament elongation by formins. 著者: Wout Oosterheert / Micaela Boiero Sanders / Johanna Funk / Daniel Prumbaum / Stefan Raunser / Peter Bieling / 要旨: Formins control the assembly of actin filaments (F-actin) that drive cell morphogenesis and motility in eukaryotes. However, their molecular interaction with F-actin and their mechanism of action ...Formins control the assembly of actin filaments (F-actin) that drive cell morphogenesis and motility in eukaryotes. However, their molecular interaction with F-actin and their mechanism of action remain unclear. In this work, we present high-resolution cryo-electron microscopy structures of F-actin barbed ends bound by three distinct formins, revealing a common asymmetric formin conformation imposed by the filament. Formation of new intersubunit contacts during actin polymerization sterically displaces formin and triggers its translocation. This "undock-and-lock" mechanism explains how actin-filament growth is coordinated with formin movement. Filament elongation speeds are controlled by the positioning and stability of actin-formin interfaces, which distinguish fast and slow formins. Furthermore, we provide a structure of the actin-formin-profilin ring complex, which resolves how profilin is rapidly released from the barbed end during filament elongation. | ||||||||||||
履歴 |
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-構造の表示
添付画像 |
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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_19497.map.gz | 13.3 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-19497-v30.xml emd-19497.xml | 31.1 KB 31.1 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_19497_fsc.xml | 11.5 KB | 表示 | FSCデータファイル |
画像 | emd_19497.png | 82.9 KB | ||
マスクデータ | emd_19497_msk_1.map | 125 MB | マスクマップ | |
Filedesc metadata | emd-19497.cif.gz | 7 KB | ||
その他 | emd_19497_additional_1.map.gz emd_19497_additional_2.map.gz emd_19497_additional_3.map.gz emd_19497_additional_4.map.gz emd_19497_half_map_1.map.gz emd_19497_half_map_2.map.gz | 97.3 MB 107.5 MB 113.7 MB 115.5 MB 98.5 MB 98.5 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-19497 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-19497 | HTTPS FTP |
-関連構造データ
-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 |
-マップ
ファイル | ダウンロード / ファイル: emd_19497.map.gz / 形式: CCP4 / 大きさ: 125 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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注釈 | Sharpened cryo-EM density map of the formin Cdc12 bound to the barbed end of F-actin (without phalloidin). | ||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.88 Å | ||||||||||||||||||||
密度 |
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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_19497_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: 3D-refined, unsharpened cryo-EM density map of the formin...
ファイル | emd_19497_additional_1.map | ||||||||||||
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注釈 | 3D-refined, unsharpened cryo-EM density map of the formin Cdc12 bound to the barbed end of F-actin (without phalloidin). | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Cryo-EM map Cdc12 bound to phalloidin-stabilized F-actin (EMD-19496),...
ファイル | emd_19497_additional_2.map | ||||||||||||
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注釈 | Cryo-EM map Cdc12 bound to phalloidin-stabilized F-actin (EMD-19496), resampled on the cryo-EM reconstruction that was obtained without phalloidin. | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Power-adjusted map of actin-Cdc12 with phalloidin(EMD-19496), resampled on...
ファイル | emd_19497_additional_3.map | ||||||||||||
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注釈 | Power-adjusted map of actin-Cdc12 with phalloidin(EMD-19496), resampled on the no-phalloidin map. Used to construct a difference map between the reconstructions with and without phalloidin. | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Difference map between actin-Cdc12 reconstructions that were obtained...
ファイル | emd_19497_additional_4.map | ||||||||||||
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注釈 | Difference map between actin-Cdc12 reconstructions that were obtained in the absence (this entry) and presence (EMD-19496) of the toxin phalloidin. | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Unfiltered half map 1 of the formin Cdc12...
ファイル | emd_19497_half_map_1.map | ||||||||||||
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注釈 | Unfiltered half map 1 of the formin Cdc12 bound to the barbed end of F-actin (without phalloidin). | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Unfiltered half map 2 of the formin Cdc12...
ファイル | emd_19497_half_map_2.map | ||||||||||||
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注釈 | Unfiltered half map 2 of the formin Cdc12 bound to the barbed end of F-actin (without phalloidin). | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
-全体 : Complex of the dimeric FH2 domain of S. Pombe Cdc12 bound to the ...
全体 | 名称: Complex of the dimeric FH2 domain of S. Pombe Cdc12 bound to the barbed end of F-actin. |
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要素 |
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-超分子 #1: Complex of the dimeric FH2 domain of S. Pombe Cdc12 bound to the ...
超分子 | 名称: Complex of the dimeric FH2 domain of S. Pombe Cdc12 bound to the barbed end of F-actin. タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: Human beta-actin and S. Pombe Cdc12 were purified separately. Both proteins were mixed to assemble the complex prior to cryo-EM grid preparation. |
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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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-超分子 #3: Dimeric FH2 domain of S. Pombe Cdc12
超分子 | 名称: Dimeric FH2 domain of S. Pombe Cdc12 / 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: Schizosaccharomyces pombe (分裂酵母) |
-分子 #1: human cytoplasmic beta-actin
分子 | 名称: human cytoplasmic beta-actin / タイプ: protein_or_peptide / ID: 1 / 詳細: Actin purified recombinantly from BTI-Tnao38 cells. / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
配列 | 文字列: MDDDIAALVV DNGSGMCKAG FAGDDAPRAV FPSIVGRPRH QGVMVGMGQK DSYVGDEAQS KRGILTLKYP IE(HIC)GIVTNWD DMEKIWHHTF YNELRVAPEE HPVLLTEAPL NPKANREKMT QIMFETFNTP AMYVAIQAVL SLYASGRTTG IVMDSGDGVT ...文字列: MDDDIAALVV DNGSGMCKAG FAGDDAPRAV FPSIVGRPRH QGVMVGMGQK DSYVGDEAQS KRGILTLKYP IE(HIC)GIVTNWD DMEKIWHHTF YNELRVAPEE HPVLLTEAPL NPKANREKMT QIMFETFNTP AMYVAIQAVL SLYASGRTTG IVMDSGDGVT HTVPIYEGYA LPHAILRLDL AGRDLTDYLM KILTERGYSF TTTAEREIVR DIKEKLCYVA LDFEQEMATA ASSSSLEKSY ELPDGQVITI GNERFRCPEA LFQPSFLGME SAGIHETTFN SIMKCDVDIR KDLYANTVLS GGTTMYPGIA DRMQKEITAL APSTMKIKII APPERKYSVW IGGSILASLS TFQQMWISKQ EYDESGPSIV HRKCF UniProtKB: Actin, cytoplasmic 1 |
-分子 #2: S. pombe Cdc12
分子 | 名称: S. pombe Cdc12 / タイプ: protein_or_peptide / ID: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: Schizosaccharomyces pombe (分裂酵母) |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: SKDDLHKTTG LTRRPTRRLK QMHWEKLNSG LEFTFWTGPS DEANKILETL HTSGVLDELD ESFAMKEAK TLVKKTCART DYMSSELQKL FGIHFHKLSH KNPNEIIRMI LHCDDSMNEC V EFLSSDKV LNQPKLKADL EPYRIDWANG GDLVNSEKDA SELSRWDYLY ...文字列: SKDDLHKTTG LTRRPTRRLK QMHWEKLNSG LEFTFWTGPS DEANKILETL HTSGVLDELD ESFAMKEAK TLVKKTCART DYMSSELQKL FGIHFHKLSH KNPNEIIRMI LHCDDSMNEC V EFLSSDKV LNQPKLKADL EPYRIDWANG GDLVNSEKDA SELSRWDYLY VRLIVDLGGY WN QRMNALK VKNIIETNYE NLVRQTKLIG RAALELRDSK VFKGLLYLIL YLGNYMNDYV RQA KGFAIG SLQRLPLIKN ANNTKSLLHI LDITIRKHFP QFDNFSPELS TVTEAAKLNI EAIE QECSE LIRGCQNLQI DCDSGALSDP TVFHPDDKIL SVILPWLMEG TKKMDFLKEH LRTMN TTLN NAMRYFGEQP NDPNSKNLFF KRVDSFIIDY SKARSDNLKS EEEEASQHRR LNLVN UniProtKB: Cell division control protein 12 |
-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 | particle |
-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) | ||||||||||||||||||
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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 / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 90 sec. | ||||||||||||||||||
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 / 詳細: 3 seconds, force 0.. |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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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 FIELDBright-field microscopy / 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 / 倍率(公称値): 81000 |
特殊光学系 | 球面収差補正装置: Titan Krios G2 microscope (Thermo Fisher Scientific) 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 / 詳細: Gatan energy filter. |
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 |
詳細 | 300 kV Titan Krios G2 microscope (Thermo Fisher Scientific) with an in-column Cs-corrector. |
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: 12009 / 平均電子線量: 64.3 e/Å2 |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
-原子モデル構築 1
初期モデル | PDB ID: Chain - Source name: PDB / Chain - Initial model type: experimental model |
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