+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 7ra7 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Crystal structure of rabbit anti-HIV Fab 11A | |||||||||
![]() |
| |||||||||
![]() | IMMUNE SYSTEM / antibody antigen neutralizing antibody HIV | |||||||||
機能・相同性 | Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta![]() | |||||||||
生物種 | ![]() ![]() | |||||||||
手法 | ![]() ![]() ![]() | |||||||||
![]() | Oyen, D. / Wilson, I.A. | |||||||||
資金援助 | ![]()
| |||||||||
![]() | ![]() タイトル: Limited breadth of anti-HIV Env glycan hole antibodies is further hindered by strain-specific peptide interactions 著者: Ozorowski, G. / Cottrell, C.A. / Oyen, D. / de Val, N. / Copps, J. / Scaring, N. / Polveroni, T.M. / Wilson, I.A. / Ward, A.B. #1: ![]() タイトル: Electron-Microscopy-Based Epitope Mapping Defines Specificities of Polyclonal Antibodies Elicited during HIV-1 BG505 Envelope Trimer Immunization. 著者: Matteo Bianchi / Hannah L Turner / Bartek Nogal / Christopher A Cottrell / David Oyen / Matthias Pauthner / Raiza Bastidas / Rebecca Nedellec / Laura E McCoy / Ian A Wilson / Dennis R Burton ...著者: Matteo Bianchi / Hannah L Turner / Bartek Nogal / Christopher A Cottrell / David Oyen / Matthias Pauthner / Raiza Bastidas / Rebecca Nedellec / Laura E McCoy / Ian A Wilson / Dennis R Burton / Andrew B Ward / Lars Hangartner / ![]() ![]() 要旨: Characterizing polyclonal antibody responses via currently available methods is inherently complex and difficult. Mapping epitopes in an immune response is typically incomplete, which creates a ...Characterizing polyclonal antibody responses via currently available methods is inherently complex and difficult. Mapping epitopes in an immune response is typically incomplete, which creates a barrier to fully understanding the humoral response to antigens and hinders rational vaccine design efforts. Here, we describe a method of characterizing polyclonal responses by using electron microscopy, and we applied this method to the immunization of rabbits with an HIV-1 envelope glycoprotein vaccine candidate, BG505 SOSIP.664. We detected known epitopes within the polyclonal sera and revealed how antibody responses evolved during the prime-boosting strategy to ultimately result in a neutralizing antibody response. We uncovered previously unidentified epitopes, including an epitope proximal to one recognized by human broadly neutralizing antibodies as well as potentially distracting non-neutralizing epitopes. Our method provides an efficient and semiquantitative map of epitopes that are targeted in a polyclonal antibody response and should be of widespread utility in vaccine and infection studies. #2: ![]() タイトル: Holes in the Glycan Shield of the Native HIV Envelope Are a Target of Trimer-Elicited Neutralizing Antibodies. 著者: Laura E McCoy / Marit J van Gils / Gabriel Ozorowski / Terrence Messmer / Bryan Briney / James E Voss / Daniel W Kulp / Matthew S Macauley / Devin Sok / Matthias Pauthner / Sergey Menis / ...著者: Laura E McCoy / Marit J van Gils / Gabriel Ozorowski / Terrence Messmer / Bryan Briney / James E Voss / Daniel W Kulp / Matthew S Macauley / Devin Sok / Matthias Pauthner / Sergey Menis / Christopher A Cottrell / Jonathan L Torres / Jessica Hsueh / William R Schief / Ian A Wilson / Andrew B Ward / Rogier W Sanders / Dennis R Burton / ![]() ![]() ![]() 要旨: A major advance in the search for an HIV vaccine has been the development of a near-native Envelope trimer (BG505 SOSIP.664) that can induce robust autologous Tier 2 neutralization. Here, potently ...A major advance in the search for an HIV vaccine has been the development of a near-native Envelope trimer (BG505 SOSIP.664) that can induce robust autologous Tier 2 neutralization. Here, potently neutralizing monoclonal antibodies (nAbs) from rabbits immunized with BG505 SOSIP.664 are shown to recognize an immunodominant region of gp120 centered on residue 241. Residue 241 occupies a hole in the glycan defenses of the BG505 isolate, with fewer than 3% of global isolates lacking a glycan site at this position. However, at least one conserved glycan site is missing in 89% of viruses, suggesting the presence of glycan holes in most HIV isolates. Serum evidence is consistent with targeting of holes in natural infection. The immunogenic nature of breaches in the glycan shield has been under-appreciated in previous attempts to understand autologous neutralizing antibody responses and has important potential consequences for HIV vaccine design. | |||||||||
履歴 |
|
-
構造の表示
構造ビューア | 分子: ![]() ![]() |
---|
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 382.6 KB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 251.8 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 | ![]() | 459.9 KB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 461.3 KB | 表示 | |
XML形式データ | ![]() | 34.1 KB | 表示 | |
CIF形式データ | ![]() | 48.7 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
-
リンク
-
集合体
登録構造単位 | ![]()
| ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | ![]()
| ||||||||||||
2 | ![]()
| ||||||||||||
単位格子 |
|
-
要素
#1: 抗体 | 分子量: 24072.021 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #2: 抗体 | 分子量: 22777.102 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #3: 化合物 | ChemComp-SO4 / #4: 化合物 | ChemComp-1PE / | #5: 水 | ChemComp-HOH / | 研究の焦点であるリガンドがあるか | N | Has protein modification | Y | |
---|
-実験情報
-実験
実験 | 手法: ![]() |
---|
-
試料調製
結晶 | マシュー密度: 2.41 Å3/Da / 溶媒含有率: 48.95 % |
---|---|
結晶化 | 温度: 298 K / 手法: 蒸気拡散法, シッティングドロップ法 / pH: 4.5 詳細: 0.1M sodium acetate, 0.2M lithium sulfate, 30% PEG8000 |
-データ収集
回折 | 平均測定温度: 100 K / Serial crystal experiment: N |
---|---|
放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: DECTRIS PILATUS 6M / 検出器: PIXEL / 日付: 2016年10月15日 |
放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 波長: 1.03315 Å / 相対比: 1 |
反射 | 解像度: 2.2→45.9 Å / Num. obs: 44732 / % possible obs: 98.7 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / 冗長度: 6.4 % / Biso Wilson estimate: 38.17 Å2 / CC1/2: 0.86 / Rmerge(I) obs: 0.185 / Rpim(I) all: 0.078 / Rrim(I) all: 0.201 / Net I/σ(I): 9 |
反射 シェル | 解像度: 2.2→2.24 Å / 冗長度: 5.2 % / Rmerge(I) obs: 1.2 / Mean I/σ(I) obs: 1 / Num. unique obs: 2195 / CC1/2: 0.56 / Rpim(I) all: 0.55 / Rrim(I) all: 1.3 / % possible all: 96.5 |
-
解析
ソフトウェア |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
精密化 | 構造決定の手法: ![]() 開始モデル: homology model 解像度: 2.2→45.9 Å / SU ML: 0.323 / 交差検証法: FREE R-VALUE / σ(F): 1.34 / 位相誤差: 29.2954 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
溶媒の処理 | 減衰半径: 0.9 Å / VDWプローブ半径: 1.11 Å / 溶媒モデル: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 41.27 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 解像度: 2.2→45.9 Å
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
拘束条件 |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
LS精密化 シェル |
|