+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7ugo | |||||||||
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タイトル | Cryo-EM structure of BG24 inferred germline Fabs with mature CDR3s and 10-1074 Fabs in complex with HIV-1 Env immunogen BG505-SOSIPv4.1-GT1 | |||||||||
要素 |
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キーワード | VIRAL PROTEIN/IMMUNE SYSTEM / HIV-1 Env / neutralizing antibody / CD4 binding site antibody / VIRAL PROTEIN / Germline / precursor / immunogen / VIRAL PROTEIN-IMMUNE SYSTEM complex | |||||||||
機能・相同性 | 機能・相同性情報 positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / viral envelope ...positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / apoptotic process / host cell plasma membrane / structural molecule activity / virion membrane / plasma membrane 類似検索 - 分子機能 | |||||||||
生物種 | Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) Homo sapiens (ヒト) | |||||||||
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: 4.1 Å | |||||||||
データ登録者 | Dam, K.A. / Bjorkman, P.J. | |||||||||
資金援助 | 米国, 2件
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引用 | ジャーナル: Nat Commun / 年: 2022 タイトル: HIV-1 CD4-binding site germline antibody-Env structures inform vaccine design. 著者: Kim-Marie A Dam / Christopher O Barnes / Harry B Gristick / Till Schoofs / Priyanthi N P Gnanapragasam / Michel C Nussenzweig / Pamela J Bjorkman / 要旨: BG24, a VRC01-class broadly neutralizing antibody (bNAb) against HIV-1 Env with relatively few somatic hypermutations (SHMs), represents a promising target for vaccine strategies to elicit CD4- ...BG24, a VRC01-class broadly neutralizing antibody (bNAb) against HIV-1 Env with relatively few somatic hypermutations (SHMs), represents a promising target for vaccine strategies to elicit CD4-binding site (CD4bs) bNAbs. To understand how SHMs correlate with BG24 neutralization of HIV-1, we report 4.1 Å and 3.4 Å single-particle cryo-EM structures of two inferred germline (iGL) BG24 precursors complexed with engineered Env-based immunogens lacking CD4bs N-glycans. Structures reveal critical Env contacts by BG24 and identify antibody light chain structural features that impede Env recognition. In addition, biochemical data and cryo-EM structures of BG24 variants bound to Envs with CD4bs glycans present provide insights into N-glycan accommodation, including structural modes of light chain adaptations in the presence of the N276 glycan. Together, these findings reveal Env regions critical for germline antibody recognition and potential sites to alter in immunogen design. | |||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7ugo.cif.gz | 566.5 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7ugo.ent.gz | 474.1 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7ugo.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 | 7ugo_validation.pdf.gz | 2.5 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7ugo_full_validation.pdf.gz | 2.5 MB | 表示 | |
XML形式データ | 7ugo_validation.xml.gz | 88.8 KB | 表示 | |
CIF形式データ | 7ugo_validation.cif.gz | 135.9 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ug/7ugo ftp://data.pdbj.org/pub/pdb/validation_reports/ug/7ugo | HTTPS FTP |
-関連構造データ
関連構造データ | 26492MC 7ugmC 7ugnC 7ugpC 7ugqC 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 (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
-集合体
登録構造単位 |
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1 |
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-要素
-Envelope glycoprotein ... , 2種, 6分子 ABCDEF
#1: タンパク質 | 分子量: 52322.422 Da / 分子数: 3 / 由来タイプ: 組換発現 / 詳細: Env mimic BG505-SOSIPv4.1-GT1 由来: (組換発現) Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) 遺伝子: env / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q2N0S5 #2: タンパク質 | 分子量: 14676.723 Da / 分子数: 3 / 由来タイプ: 組換発現 / 詳細: Env mimic BG505-SOSIPv4.1-GT1 由来: (組換発現) Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) 遺伝子: env / 発現宿主: Homo sapiens (ヒト) |
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-抗体 , 4種, 12分子 MNOPQRGHIJKL
#3: 抗体 | 分子量: 14791.433 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト) #4: 抗体 | 分子量: 11701.023 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト) #5: 抗体 | 分子量: 13697.314 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト) #6: 抗体 | 分子量: 11180.226 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト) |
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-糖 , 9種, 45分子
#7: 多糖 | #8: 多糖 | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-2)]alpha-D- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-2)]alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | タイプ: oligosaccharide / 分子量: 1235.105 Da / 分子数: 1 / 由来タイプ: 組換発現 #9: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #10: 多糖 | #11: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #12: 多糖 | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]alpha-D- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | タイプ: oligosaccharide / 分子量: 1235.105 Da / 分子数: 1 / 由来タイプ: 組換発現 #13: 多糖 | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]alpha-D- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #14: 糖 | ChemComp-NAG / #15: 糖 | ChemComp-MAN / |
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-詳細
研究の焦点であるリガンドがあるか | N |
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Has protein modification | Y |
-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: Cryo-EM map of BG24-iGL CDR3mat and 10-1074 Fabs in complex with BG505 SOSIP.664v4.1-GT1 Env trimer immunogen タイプ: COMPLEX / Entity ID: #1-#6 / 由来: MULTIPLE SOURCES | |||||||||||||||
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分子量 | 実験値: NO | |||||||||||||||
由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 8 | |||||||||||||||
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | |||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 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 TALOS 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: 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): 1200 nm / Cs: 2.7 mm |
試料ホルダ | 凍結剤: NITROGEN |
撮影 | 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: FEI FALCON III (4k x 4k) |
-解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 4.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 225140 / 対称性のタイプ: POINT |