+
データを開く
-
基本情報
| 登録情報 | データベース: PDB / ID: 8byp | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| タイトル | Botulinum neurotoxin serotype X in complex with NTNH/X | |||||||||
 要素 | 
  | |||||||||
 キーワード | TOXIN / Botulinum neurotoxin / botulism | |||||||||
| 機能・相同性 |  機能・相同性情報bontoxilysin / host cell presynaptic membrane / host cell cytoplasmic vesicle / host cell cytosol / protein transmembrane transporter activity / metalloendopeptidase activity / toxin activity / host cell plasma membrane / proteolysis / extracellular region ...bontoxilysin / host cell presynaptic membrane / host cell cytoplasmic vesicle / host cell cytosol / protein transmembrane transporter activity / metalloendopeptidase activity / toxin activity / host cell plasma membrane / proteolysis / extracellular region / zinc ion binding / membrane 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: 3.12 Å | |||||||||
 データ登録者 | Martinez-Carranza, M. / Skerlova, J. / Stenmark, P. | |||||||||
| 資金援助 | European Union, 1件 
  | |||||||||
 引用 |  ジャーナル: Commun Chem / 年: 2024タイトル: Activity of botulinum neurotoxin X and its structure when shielded by a non-toxic non-hemagglutinin protein. 著者: Markel Martínez-Carranza / Jana Škerlová / Pyung-Gang Lee / Jie Zhang / Ajda Krč / Abhishek Sirohiwal / Dave Burgin / Mark Elliott / Jules Philippe / Sarah Donald / Fraser Hornby / Linda ...著者: Markel Martínez-Carranza / Jana Škerlová / Pyung-Gang Lee / Jie Zhang / Ajda Krč / Abhishek Sirohiwal / Dave Burgin / Mark Elliott / Jules Philippe / Sarah Donald / Fraser Hornby / Linda Henriksson / Geoffrey Masuyer / Ville R I Kaila / Matthew Beard / Min Dong / Pål Stenmark /     ![]() 要旨: Botulinum neurotoxins (BoNTs) are the most potent toxins known and are used to treat an increasing number of medical disorders. All BoNTs are naturally co-expressed with a protective partner protein ...Botulinum neurotoxins (BoNTs) are the most potent toxins known and are used to treat an increasing number of medical disorders. All BoNTs are naturally co-expressed with a protective partner protein (NTNH) with which they form a 300 kDa complex, to resist acidic and proteolytic attack from the digestive tract. We have previously identified a new botulinum neurotoxin serotype, BoNT/X, that has unique and therapeutically attractive properties. We present the cryo-EM structure of the BoNT/X-NTNH/X complex and the crystal structure of the isolated NTNH protein. Unexpectedly, the BoNT/X complex is stable and protease-resistant at both neutral and acidic pH and disassembles only in alkaline conditions. Using the stabilizing effect of NTNH, we isolated BoNT/X and showed that it has very low potency both in vitro and in vivo. Given the high catalytic activity and translocation efficacy of BoNT/X, low activity of the full toxin is likely due to the receptor-binding domain, which presents very weak ganglioside binding and exposed hydrophobic surfaces. #1: ジャーナル: bioRxiv / 年: 2023 タイトル: Structure and activity of botulinum neurotoxin X. 著者: Markel Martínez-Carranza / Jana Škerlová / Pyung-Gang Lee / Jie Zhang / Dave Burgin / Mark Elliott / Jules Philippe / Sarah Donald / Fraser Hornby / Linda Henriksson / Geoffrey Masuyer / ...著者: Markel Martínez-Carranza / Jana Škerlová / Pyung-Gang Lee / Jie Zhang / Dave Burgin / Mark Elliott / Jules Philippe / Sarah Donald / Fraser Hornby / Linda Henriksson / Geoffrey Masuyer / Matthew Beard / Min Dong / Pål Stenmark 要旨: Botulinum neurotoxins (BoNTs) are the most potent toxins known and are used to treat an increasing number of medical disorders. All BoNTs are naturally co-expressed with a protective partner protein ...Botulinum neurotoxins (BoNTs) are the most potent toxins known and are used to treat an increasing number of medical disorders. All BoNTs are naturally co-expressed with a protective partner protein (NTNH) with which they form a 300 kDa complex, to resist acidic and proteolytic attack from the digestive tract. We have previously identified a new botulinum neurotoxin serotype, BoNT/X, that has unique and therapeutically attractive properties. We present the cryo-EM structure of the BoNT/X-NTNH/X complex at 3.1 Å resolution. Unexpectedly, the BoNT/X complex is stable and protease resistant at both neutral and acidic pH and disassembles only in alkaline conditions. Using the stabilizing effect of NTNH, we isolated BoNT/X and showed that it has very low potency both and . Given the high catalytic activity and translocation efficacy of BoNT/X, low activity of the full toxin is likely due to the receptor-binding domain, which presents weak ganglioside binding and exposed hydrophobic surfaces.  | |||||||||
| 履歴 | 
  | 
-
構造の表示
| 構造ビューア | 分子:  Molmil Jmol/JSmol | 
|---|
-
ダウンロードとリンク
-
ダウンロード
| PDBx/mmCIF形式 |  8byp.cif.gz | 442.9 KB | 表示 |  PDBx/mmCIF形式 | 
|---|---|---|---|---|
| PDB形式 |  pdb8byp.ent.gz | 357.6 KB | 表示 |  PDB形式 | 
| PDBx/mmJSON形式 |  8byp.json.gz | ツリー表示 |  PDBx/mmJSON形式 | |
| その他 |  その他のダウンロード | 
-検証レポート
| 文書・要旨 |  8byp_validation.pdf.gz | 1.5 MB | 表示 |  wwPDB検証レポート | 
|---|---|---|---|---|
| 文書・詳細版 |  8byp_full_validation.pdf.gz | 1.6 MB | 表示 | |
| XML形式データ |  8byp_validation.xml.gz | 75.9 KB | 表示 | |
| CIF形式データ |  8byp_validation.cif.gz | 114.4 KB | 表示 | |
| アーカイブディレクトリ |  https://data.pdbj.org/pub/pdb/validation_reports/by/8byp ftp://data.pdbj.org/pub/pdb/validation_reports/by/8byp | HTTPS FTP  | 
-関連構造データ
| 関連構造データ | ![]() 16330MC ![]() 8qftC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 (  | 
|---|---|
| 類似構造データ | 類似検索 - 機能・相同性  F&H 検索 | 
-
リンク
-
集合体
| 登録構造単位 | ![]() 
  | 
|---|---|
| 1 | 
  | 
-
要素
| #1: タンパク質 |   分子量: 137394.984 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 発現宿主: ![]()  | 
|---|---|
| #2: タンパク質 |   分子量: 150348.891 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: CBB2_0680 / 発現宿主: ![]()  | 
| Has protein modification | Y | 
-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 | 
|---|---|
| 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 | 
-
試料調製
| 構成要素 | 名称: Botulinum neurotoxin serotype X in complex with NTNH/X タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT  | 
|---|---|
| 分子量 | 値: 0.3 MDa / 実験値: YES | 
| 由来(天然) | 生物種: ![]()  | 
| 由来(組換発現) | 生物種: ![]()  | 
| 緩衝液 | pH: 5.5 | 
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | 
| 急速凍結 | 凍結剤: ETHANE | 
-
電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company  | 
|---|---|
| 顕微鏡 | モデル: FEI TITAN KRIOS | 
| 電子銃 | 電子線源:  FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM | 
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 500 nm | 
| 撮影 | 電子線照射量: 40 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k)  | 
-
解析
| EMソフトウェア | 
  | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||
| 3次元再構成 | 解像度: 3.12 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 432063 / 対称性のタイプ: POINT | ||||||||||||||||||
| 原子モデル構築 | プロトコル: FLEXIBLE FIT | 
ムービー
コントローラー
万見について






引用
 
 


PDBj
gel filtration
