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基本情報
登録情報 | データベース: PDB / ID: 7dzw | ||||||||||||||||||||||||
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タイトル | Apo spike protein from SARS-CoV2 | ||||||||||||||||||||||||
![]() | Spike glycoprotein | ||||||||||||||||||||||||
![]() | VIRAL PROTEIN / SARS-CoV2 / spike protein | ||||||||||||||||||||||||
機能・相同性 | ![]() Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion ...Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion / entry receptor-mediated virion attachment to host cell / Attachment and Entry / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / receptor ligand activity / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / identical protein binding / membrane / plasma 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: 3.45 Å | ||||||||||||||||||||||||
![]() | Liu, Y. / Soh, W.T. / Li, S. / Kishikawa, J. / Hirose, M. / Kato, T. / Standley, D. / Okada, M. / Arase, H. | ||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: An infectivity-enhancing site on the SARS-CoV-2 spike protein targeted by antibodies. 著者: Yafei Liu / Wai Tuck Soh / Jun-Ichi Kishikawa / Mika Hirose / Emi E Nakayama / Songling Li / Miwa Sasai / Tatsuya Suzuki / Asa Tada / Akemi Arakawa / Sumiko Matsuoka / Kanako Akamatsu / ...著者: Yafei Liu / Wai Tuck Soh / Jun-Ichi Kishikawa / Mika Hirose / Emi E Nakayama / Songling Li / Miwa Sasai / Tatsuya Suzuki / Asa Tada / Akemi Arakawa / Sumiko Matsuoka / Kanako Akamatsu / Makoto Matsuda / Chikako Ono / Shiho Torii / Kazuki Kishida / Hui Jin / Wataru Nakai / Noriko Arase / Atsushi Nakagawa / Maki Matsumoto / Yukoh Nakazaki / Yasuhiro Shindo / Masako Kohyama / Keisuke Tomii / Koichiro Ohmura / Shiro Ohshima / Toru Okamoto / Masahiro Yamamoto / Hironori Nakagami / Yoshiharu Matsuura / Atsushi Nakagawa / Takayuki Kato / Masato Okada / Daron M Standley / Tatsuo Shioda / Hisashi Arase / ![]() 要旨: Antibodies against the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein prevent SARS-CoV-2 infection. However, the effects of antibodies against other spike protein domains are largely ...Antibodies against the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein prevent SARS-CoV-2 infection. However, the effects of antibodies against other spike protein domains are largely unknown. Here, we screened a series of anti-spike monoclonal antibodies from coronavirus disease 2019 (COVID-19) patients and found that some of antibodies against the N-terminal domain (NTD) induced the open conformation of RBD and thus enhanced the binding capacity of the spike protein to ACE2 and infectivity of SARS-CoV-2. Mutational analysis revealed that all of the infectivity-enhancing antibodies recognized a specific site on the NTD. Structural analysis demonstrated that all infectivity-enhancing antibodies bound to NTD in a similar manner. The antibodies against this infectivity-enhancing site were detected at high levels in severe patients. Moreover, we identified antibodies against the infectivity-enhancing site in uninfected donors, albeit at a lower frequency. These findings demonstrate that not only neutralizing antibodies but also enhancing antibodies are produced during SARS-CoV-2 infection. | ||||||||||||||||||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 431.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 251 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.6 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.6 MB | 表示 | |
XML形式データ | ![]() | 83.8 KB | 表示 | |
CIF形式データ | ![]() | 133.9 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 138386.781 Da / 分子数: 3 / 変異: D614G, R682G, R683S, R685G, K986P, V987P / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: S, 2 / 細胞株 (発現宿主): Expi293F / 発現宿主: ![]() |
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-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 |
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試料調製
構成要素 | 名称: Spike glycoprotein / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 実験値: NO |
由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 8 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 200 divisions/in. |
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / Cs: 0.0452 mm |
撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | |||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.45 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 120442 / アルゴリズム: FOURIER SPACE / 対称性のタイプ: POINT | |||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL / Target criteria: Correlation 詳細: The protein was homology modeled using MODELLER software. Then, the model was fitted into cryo-EM map. | |||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 7KEB PDB chain-ID: ABC / Accession code: 7KEB / Source name: PDB / タイプ: experimental model |