+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7eno | ||||||
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タイトル | Mutant strain M3 of foot-and-mouth disease virus type O | ||||||
要素 |
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キーワード | VIRUS / FMDV | ||||||
機能・相同性 | 機能・相同性情報 L-peptidase / modulation by virus of host chromatin organization / RNA-protein covalent cross-linking / : / : / ribonucleoside triphosphate phosphatase activity / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / cytoplasmic vesicle membrane ...L-peptidase / modulation by virus of host chromatin organization / RNA-protein covalent cross-linking / : / : / ribonucleoside triphosphate phosphatase activity / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / cytoplasmic vesicle membrane / nucleoside-triphosphate phosphatase / protein complex oligomerization / monoatomic ion channel activity / regulation of translation / clathrin-dependent endocytosis of virus by host cell / RNA helicase activity / viral protein processing / RNA-directed RNA polymerase / viral RNA genome replication / cysteine-type endopeptidase activity / RNA-dependent RNA polymerase activity / DNA-templated transcription / virion attachment to host cell / structural molecule activity / RNA binding / ATP binding 類似検索 - 分子機能 | ||||||
生物種 | Foot-and-mouth disease virus - type O (ウイルス) | ||||||
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: 3.15 Å | ||||||
データ登録者 | Dong, H. / Lu, Y. | ||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: J Virol / 年: 2021 タイトル: A Heat-Induced Mutation on VP1 of Foot-and-Mouth Disease Virus Serotype O Enhanced Capsid Stability and Immunogenicity. 著者: Hu Dong / Yuanlu Lu / Yun Zhang / Suyu Mu / Nan Wang / Ping Du / Xiaoying Zhi / Xiaobo Wen / Xiangxi Wang / Shiqi Sun / Yanming Zhang / Huichen Guo / 要旨: Foot-and-mouth disease (FMD) is a highly contagious viral disease affecting cloven-hoofed animals that causes a significant economic burden globally. Vaccination is the most effective FMD control ...Foot-and-mouth disease (FMD) is a highly contagious viral disease affecting cloven-hoofed animals that causes a significant economic burden globally. Vaccination is the most effective FMD control strategy. However, FMD virus (FMDV) particles are prone to dissociate when appropriate physical or chemical conditions are unavailable, such as an incomplete cold chain. Such degraded vaccines result in compromised herd vaccination. Therefore, thermostable FMD particles are needed for use in vaccines. This study generated thermostable FMDV mutants (M3 and M10) by serial passages at high temperature, subsequent amplification, and purification. Both mutants contained an alanine-to-threonine mutation at position 13 in VP1 (A1013T), although M3 contained 3 additional mutations. The selected mutants showed improved stability and immunogenicity in neutralizing antibody titers, compared with the wild-type (wt) virus. The sequencing analysis and cryo-electron microscopy showed that the mutation of alanine to threonine at the 13th amino acid in the VP1 protein (A1013T) is critical for the capsid stability of FMDV. Virus-like particles containing A1013T (VLP) also showed significantly improved stability to heat treatment. This study demonstrated that Thr at the 13th amino acid of VP1 could stabilize the capsid of FMDV. Our findings will facilitate the development of a stable vaccine against FMDV serotype O. Foot-and-mouth disease (FMD) serotype O is one of the global epidemic serotypes and causes significant economic loss. Vaccination plays a key role in the prevention and control of FMD. However, the success of vaccination mainly depends on the quality of the vaccine. Here, the thermostable FMD virus (FMDV) mutants (M3 and M10) were selected through thermal screening at high temperatures with improved stability and immunogenicity compared with the wild-type virus. The results of multisequence alignment and cryo-electron microscopy (cryo-EM) analysis showed that the Thr substitution at the 13th amino acid in the VP1 protein is critical for the capsid stability of FMDV. For thermolabile type O FMDV, this major discovery will aid the development of its thermostable vaccine. | ||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7eno.cif.gz | 126.5 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7eno.ent.gz | 97.2 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7eno.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 | 7eno_validation.pdf.gz | 955.1 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7eno_full_validation.pdf.gz | 957.9 KB | 表示 | |
XML形式データ | 7eno_validation.xml.gz | 24.3 KB | 表示 | |
CIF形式データ | 7eno_validation.cif.gz | 35.1 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/en/7eno ftp://data.pdbj.org/pub/pdb/validation_reports/en/7eno | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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6 |
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対称性 | 点対称性: (シェーンフリース記号: I (正20面体型対称)) |
-要素
#1: タンパク質 | 分子量: 23247.596 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Foot-and-mouth disease virus - type O (ウイルス) 発現宿主: Escherichia coli (大腸菌) |
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#2: タンパク質 | 分子量: 24510.613 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Foot-and-mouth disease virus - type O (ウイルス) 発現宿主: Escherichia coli (大腸菌) |
#3: タンパク質 | 分子量: 23882.836 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Foot-and-mouth disease virus - type O (ウイルス) 発現宿主: Escherichia coli (大腸菌) |
#4: タンパク質 | 分子量: 8778.129 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Foot-and-mouth disease virus - type O (ウイルス) 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: L0AP64 |
-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 |
-試料調製
構成要素 | 名称: Foot-and-mouth disease virus / タイプ: VIRUS / Entity ID: all / 由来: RECOMBINANT |
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由来(天然) | 生物種: Foot-and-mouth disease virus - type O (ウイルス) |
由来(組換発現) | 生物種: Escherichia coli (大腸菌) |
ウイルスについての詳細 | 中空か: NO / エンベロープを持つか: NO / 単離: STRAIN / タイプ: VIRION |
緩衝液 | pH: 7.4 |
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: Talos Arctica / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TECNAI ARCTICA |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: DARK FIELD |
撮影 | 電子線照射量: 30 e/Å2 フィルム・検出器のモデル: GATAN K2 QUANTUM (4k x 4k) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.17.1_3660: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.15 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 298 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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