+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-26455 | |||||||||||||||||||||
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タイトル | Cryo-EM structure of a synaptobrevin-Munc18-1-syntaxin-1 complex class 2 | |||||||||||||||||||||
マップデータ | Cryo-EM map of synaptobrevin-Munc18-1-syntaxin-1 complex, conformation 1 | |||||||||||||||||||||
試料 |
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キーワード | Munc18 / syntaxin / synaptobrevin / SNARE / membrane fusion / neurotransmitter release / EXOCYTOSIS | |||||||||||||||||||||
機能・相同性 | 機能・相同性情報 positive regulation of vesicle docking / regulation of acrosomal vesicle exocytosis / positive regulation of glutamate secretion, neurotransmission / negative regulation of SNARE complex assembly / regulation of vesicle fusion / developmental process involved in reproduction / axon target recognition / trans-Golgi Network Vesicle Budding / regulation of delayed rectifier potassium channel activity / myosin head/neck binding ...positive regulation of vesicle docking / regulation of acrosomal vesicle exocytosis / positive regulation of glutamate secretion, neurotransmission / negative regulation of SNARE complex assembly / regulation of vesicle fusion / developmental process involved in reproduction / axon target recognition / trans-Golgi Network Vesicle Budding / regulation of delayed rectifier potassium channel activity / myosin head/neck binding / exocytic insertion of neurotransmitter receptor to postsynaptic membrane / Other interleukin signaling / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin II complex / synaptobrevin 2-SNAP-25-syntaxin-1a complex / extrinsic component of presynaptic membrane / synaptic vesicle fusion to presynaptic active zone membrane / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex / positive regulation of norepinephrine secretion / Glutamate Neurotransmitter Release Cycle / Norepinephrine Neurotransmitter Release Cycle / positive regulation of catecholamine secretion / Acetylcholine Neurotransmitter Release Cycle / Lysosome Vesicle Biogenesis / Serotonin Neurotransmitter Release Cycle / GABA synthesis, release, reuptake and degradation / Dopamine Neurotransmitter Release Cycle / zymogen granule membrane / regulated exocytosis / negative regulation of synaptic transmission, GABAergic / presynaptic dense core vesicle exocytosis / platelet degranulation / synaptic vesicle docking / Golgi Associated Vesicle Biogenesis / regulation of synaptic vesicle priming / storage vacuole / response to gravity / vesicle-mediated transport in synapse / positive regulation of calcium ion-dependent exocytosis / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / synaptic vesicle maturation / vesicle fusion / eosinophil degranulation / vesicle docking / neuromuscular synaptic transmission / secretion by cell / SNARE complex / chloride channel inhibitor activity / SNAP receptor activity / presynaptic active zone cytoplasmic component / regulation of exocytosis / positive regulation of mast cell degranulation / regulation of vesicle-mediated transport / Cargo recognition for clathrin-mediated endocytosis / LGI-ADAM interactions / Clathrin-mediated endocytosis / calcium-ion regulated exocytosis / hormone secretion / actomyosin / positive regulation of intracellular protein transport / platelet alpha granule / Golgi to plasma membrane protein transport / neurotransmitter secretion / protein localization to membrane / ATP-dependent protein binding / neuron projection terminus / vesicle docking involved in exocytosis / presynaptic cytosol / regulation of synaptic vesicle recycling / insulin secretion / long-term synaptic depression / syntaxin binding / neurotransmitter transport / syntaxin-1 binding / parallel fiber to Purkinje cell synapse / clathrin-coated vesicle / SNARE complex assembly / positive regulation of neurotransmitter secretion / synaptic vesicle priming / postsynaptic cytosol / myosin binding / modulation of excitatory postsynaptic potential / exocytosis / synaptic vesicle exocytosis / positive regulation of exocytosis / phospholipase binding / protein sumoylation / positive regulation of excitatory postsynaptic potential / synaptic vesicle endocytosis / negative regulation of protein-containing complex assembly / calcium channel inhibitor activity / endomembrane system / response to glucose / phagocytic vesicle / presynaptic active zone membrane / vesicle-mediated transport / acrosomal vesicle / SNARE binding / secretory granule / protein localization to plasma membrane / establishment of localization in cell 類似検索 - 分子機能 | |||||||||||||||||||||
生物種 | Rattus norvegicus (ドブネズミ) | |||||||||||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.5 Å | |||||||||||||||||||||
データ登録者 | Rizo J / Bai X / Stepien KP / Xu J / Zhang X | |||||||||||||||||||||
資金援助 | 米国, 6件
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引用 | ジャーナル: Sci Adv / 年: 2022 タイトル: SNARE assembly enlightened by cryo-EM structures of a synaptobrevin-Munc18-1-syntaxin-1 complex. 著者: Karolina P Stepien / Junjie Xu / Xuewu Zhang / Xiao-Chen Bai / Josep Rizo / 要旨: Munc18-1 forms a template to organize assembly of the neuronal SNARE complex that triggers neurotransmitter release, binding first to a closed conformation of syntaxin-1 where its amino-terminal ...Munc18-1 forms a template to organize assembly of the neuronal SNARE complex that triggers neurotransmitter release, binding first to a closed conformation of syntaxin-1 where its amino-terminal region interacts with the SNARE motif, and later binding to synaptobrevin. However, the mechanism of SNARE complex assembly remains unclear. Here, we report two cryo-EM structures of Munc18-1 bound to cross-linked syntaxin-1 and synaptobrevin. The structures allow visualization of how syntaxin-1 opens and reveal how part of the syntaxin-1 amino-terminal region can help nucleate interactions between the amino termini of the syntaxin-1 and synaptobrevin SNARE motifs, while their carboxyl termini bind to distal sites of Munc18-1. These observations, together with mutagenesis, SNARE complex assembly experiments, and fusion assays with reconstituted proteoliposomes, support a model whereby these interactions are critical to initiate SNARE complex assembly and multiple energy barriers enable diverse mechanisms for exquisite regulation of neurotransmitter release. | |||||||||||||||||||||
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_26455.map.gz | 14.6 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-26455-v30.xml emd-26455.xml | 20.9 KB 20.9 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_26455.png | 153.4 KB | ||
Filedesc metadata | emd-26455.cif.gz | 6.7 KB | ||
その他 | emd_26455_half_map_1.map.gz emd_26455_half_map_2.map.gz | 17 MB 17 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-26455 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-26455 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_26455_validation.pdf.gz | 686.5 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_26455_full_validation.pdf.gz | 686.1 KB | 表示 | |
XML形式データ | emd_26455_validation.xml.gz | 10.1 KB | 表示 | |
CIF形式データ | emd_26455_validation.cif.gz | 11.8 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-26455 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-26455 | HTTPS FTP |
-関連構造データ
関連構造データ | 7udbMC 7udcC M: このマップから作成された原子モデル C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-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_26455.map.gz / 形式: CCP4 / 大きさ: 22.2 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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注釈 | Cryo-EM map of synaptobrevin-Munc18-1-syntaxin-1 complex, conformation 1 | ||||||||||||||||||||||||||||||||||||
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: 1.08 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
-ハーフマップ: Cryo-EM map of synaptobrevin-Munc18-1-syntaxin-1 complex, conformation 1, unfiltered...
ファイル | emd_26455_half_map_1.map | ||||||||||||
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注釈 | Cryo-EM map of synaptobrevin-Munc18-1-syntaxin-1 complex, conformation 1, unfiltered half map 2 | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Cryo-EM map of synaptobrevin-Munc18-1-syntaxin-1 complex, conformation 1, unfiltered...
ファイル | emd_26455_half_map_2.map | ||||||||||||
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注釈 | Cryo-EM map of synaptobrevin-Munc18-1-syntaxin-1 complex, conformation 1, unfiltered half map 1 | ||||||||||||
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 : ternary complex of Munc18-1 bound to syntaxin-1A and a SNARE moti...
全体 | 名称: ternary complex of Munc18-1 bound to syntaxin-1A and a SNARE motif of synaptobrevin 2 |
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要素 |
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-超分子 #1: ternary complex of Munc18-1 bound to syntaxin-1A and a SNARE moti...
超分子 | 名称: ternary complex of Munc18-1 bound to syntaxin-1A and a SNARE motif of synaptobrevin 2 タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
-分子 #1: Syntaxin-binding protein 1
分子 | 名称: Syntaxin-binding protein 1 / タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
分子量 | 理論値: 68.714883 KDa |
組換発現 | 生物種: Escherichia coli BL21(DE3) (大腸菌) |
配列 | 文字列: GSPGISGGGG GIHMAPIGLK AVVGEKIMHD VIKKVKKKGE WKVLVVDQLS MRMLSSCCKM TDIMTEGITI VEDINKRREP LPSLEAVYL ITPSEKSVHS LISDFKDPPT AKYRAAHVFF TDSCPDALFN ELVKSRAAKV IKTLTEINIA FLPYESQVYS L DSADSFQS ...文字列: GSPGISGGGG GIHMAPIGLK AVVGEKIMHD VIKKVKKKGE WKVLVVDQLS MRMLSSCCKM TDIMTEGITI VEDINKRREP LPSLEAVYL ITPSEKSVHS LISDFKDPPT AKYRAAHVFF TDSCPDALFN ELVKSRAAKV IKTLTEINIA FLPYESQVYS L DSADSFQS FYSPHKAQMK NPILERLAEQ IATLCATLKE YPAVRYRGEY KDNALLAQLI QDKLDAYKAD DPTMGEGPDK AR SQLLILD RGFDPSSPVL HELTFQAMSY DLLPIENDVY KYETSGIGEA RVKEVLLDED DDLWIALRHK HIAEVSQEVT RSL KDFSSS KRMNTGEKTT MRKLSQMLKK MPQYQKELSK YSTHLHLAED CMKHYQGTVD KLCRVEQDLA MGTDAEGEKI KDPM RAIVP ILLDANVSTY DKIRIILLYI FLKNGITEEN LNKLIQHAQI PPEDSEIITN MAHLGVPIVT DSTLRRRSKP ERKER ISEQ TYQLSRWTPI IKDIMEDTIE DKLDTKHYPY ISTRSSASFS TTAVSARYGH WHKNKAPGEY RSGPRLIIFI LGGVSL NEM RCAYEVTQAN GKWEVLIGST HILTPQKLLD TLKKLNKTDE EISS UniProtKB: Syntaxin-binding protein 1 |
-分子 #2: Syntaxin-1A
分子 | 名称: Syntaxin-1A / タイプ: protein_or_peptide / ID: 2 詳細: An 8 residue polyalanine stretch was modeled between I149 and A178 of chain B entity Syntaxin-1A. Side chains in this region were not visible and residue numbers are tentative. While ...詳細: An 8 residue polyalanine stretch was modeled between I149 and A178 of chain B entity Syntaxin-1A. Side chains in this region were not visible and residue numbers are tentative. While processing in OneDep the polyalanine sequence was updated to 162-SEEAADML-169 コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
分子量 | 理論値: 29.221541 KDa |
組換発現 | 生物種: Escherichia coli BL21(DE3) (大腸菌) |
配列 | 文字列: GSKDRTQELR TAKDSDDDDD VTVTVDRDRF MDEFFEQVEE IRGFIDKIAE NVEEVKRKHS AILASPNPDE KTKEELEELM SDIKKTANK VRSKLKSIEQ SIEQEEGLNR SSADLRIRKT QHSTLSRKFV EVMSEYNATQ SDYRERAKGR IQRQLEITGR T TTSEEAAD ...文字列: GSKDRTQELR TAKDSDDDDD VTVTVDRDRF MDEFFEQVEE IRGFIDKIAE NVEEVKRKHS AILASPNPDE KTKEELEELM SDIKKTANK VRSKLKSIEQ SIEQEEGLNR SSADLRIRKT QHSTLSRKFV EVMSEYNATQ SDYRERAKGR IQRQLEITGR T TTSEEAAD MLESGNPAIF ASGIIMDSSI SKQALSEIET RHSEIIKCEN SIRELHDMFM DMAMLVESQG EMIDRIEYNV EH AVDYVER AVSDTKK UniProtKB: Syntaxin-1A |
-分子 #3: Synaptobrevin-2
分子 | 名称: Synaptobrevin-2 / タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
分子量 | 理論値: 6.645386 KDa |
組換発現 | 生物種: Escherichia coli BL21(DE3) (大腸菌) |
配列 | 文字列: GSMWNRRLQQ TCAQVDEVVD IMRVNVDKVL ERDQKLSELD DRADALQAGA SQFETSAAK UniProtKB: Vesicle-associated membrane protein 2 |
-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
濃度 | 7.5 mg/mL |
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緩衝液 | pH: 7 |
グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / メッシュ: 300 / 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 |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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特殊光学系 | 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 |
撮影 | フィルム・検出器のモデル: GATAN K2 QUANTUM (4k x 4k) 検出モード: SUPER-RESOLUTION / 実像数: 7401 / 平均電子線量: 60.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.6 µm / 最小 デフォーカス(公称値): 1.6 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 |