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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 5aco | |||||||||
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タイトル | Cryo-EM structure of PGT128 Fab in complex with BG505 SOSIP.664 Env trimer | |||||||||
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![]() | VIRAL PROTEIN / IMMUNE SYSTEM / HIV-1 / ENV / BNAB / ANTIBODY / PGT128 | |||||||||
機能・相同性 | ![]() positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane ...positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / identical protein 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: 4.36 Å | |||||||||
![]() | Lee, J.H. / Ward, A.B. | |||||||||
![]() | ![]() タイトル: Model Building and Refinement of a Natively Glycosylated HIV-1 Env Protein by High-Resolution Cryoelectron Microscopy. 著者: Jeong Hyun Lee / Natalia de Val / Dmitry Lyumkis / Andrew B Ward / ![]() 要旨: Secretory and membrane proteins from mammalian cells undergo post-translational modifications, including N-linked glycosylation, which can result in a large number of possible glycoforms. This sample ...Secretory and membrane proteins from mammalian cells undergo post-translational modifications, including N-linked glycosylation, which can result in a large number of possible glycoforms. This sample heterogeneity can be problematic for structural studies, particularly X-ray crystallography. Thus, crystal structures of heavily glycosylated proteins such as the HIV-1 Env viral spike protein have been determined by removing the majority of glycans. This step is most frequently carried out using Endoglycosidase H (EndoH) and requires that all expressed glycans be in the high-mannose form, which is often not the native glycoform. With significantly improved technologies in single-particle cryoelectron microscopy, we demonstrate that it is now possible to refine and build natively glycosylated HIV-1 Env structures in solution to 4.36 Å resolution. At this resolution we can now analyze the complete epitope of a broadly neutralizing antibody (bnAb), PGT128, in the context of the trimer expressed with native glycans. | |||||||||
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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PDBx/mmCIF形式 | ![]() | 479.2 KB | 表示 | ![]() |
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-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-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
-HIV-1 ENVELOPE ... , 2種, 6分子 ACDBEF
#1: タンパク質 | 分子量: 53278.301 Da / 分子数: 3 / 断片: GP120, RESIDUES 30-505 / 変異: YES / 由来タイプ: 組換発現 詳細: THE ENV SEQUENCE IS FROM THE CLADE A VIRUS BG505, TRUNCATED AT RESIDUE 664 OF GP41, MUTATED TO HAVE THE N332 GLYCOSYLATION SITE, AND CONTAINS STABILIZING SOSIP MUTATIONS. 由来: (組換発現) ![]() ![]() 遺伝子: ENV / Variant: BG505 SOSIP.664 / 細胞株 (発現宿主): HEK293 / 発現宿主: ![]() #2: タンパク質 | 分子量: 17146.482 Da / 分子数: 3 / 断片: GP41, RESIDUES 509-661 / 変異: YES / 由来タイプ: 組換発現 詳細: THE ENV SEQUENCE IS FROM THE CLADE A VIRUS BG505, TRUNCATED AT RESIDUE 664 OF GP41, MUTATED TO HAVE THE N332 GLYCOSYLATION SITE, AND CONTAINS STABILIZING SOSIP MUTATIONS. 由来: (組換発現) ![]() ![]() 遺伝子: ENV / Variant: BG505 SOSIP.664 / 細胞株 (発現宿主): HEK293 / 発現宿主: ![]() |
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-抗体 , 2種, 6分子 GHIJKL
#3: 抗体 | 分子量: 25580.701 Da / 分子数: 3 / 断片: HEAVY CHAIN OF FAB VARIABLE REGION / 由来タイプ: 組換発現 / 詳細: THE FRAGMENT ANTIGEN BINDING (FAB) OF BNAB PGT128. / 由来: (組換発現) ![]() ![]() #4: 抗体 | 分子量: 22224.572 Da / 分子数: 3 / 断片: LIGHT CHAIN OF FAB VARIABLE REGION / 由来タイプ: 組換発現 / 詳細: THE FRAGMENT ANTIGEN BINDING (FAB) OF BNAB PGT128. / 由来: (組換発現) ![]() ![]() |
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-糖 , 6種, 60分子 
#5: 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 #6: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #7: 多糖 | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-alpha-D- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[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 #8: 多糖 | #9: 多糖 | #10: 糖 | ChemComp-NAG / |
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-詳細
Has protein modification | Y |
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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: PGT128 FAB BOUND TO BG505 SOSIP.664 ENV TRIMER / タイプ: COMPLEX |
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緩衝液 | 名称: 50 MM TRIS, 150 MM NACL, 0.675 MM DDM / pH: 7.4 / 詳細: 50 MM TRIS, 150 MM NACL, 0.675 MM DDM |
試料 | 濃度: 2.5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | 詳細: HOLEY CARBON |
急速凍結 | 装置: HOMEMADE PLUNGER / 凍結剤: ETHANE / 詳細: FROZEN IN LIQUID ETHANE AT 4 DEGREES C. |
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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 / 日付: 2014年10月7日 / 詳細: IMAGED ON FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 22500 X / 倍率(補正後): 22500 X / 最大 デフォーカス(公称値): 3500 nm / 最小 デフォーカス(公称値): 1000 nm / Cs: 2.7 mm |
試料ホルダ | 傾斜角・最小: 0 ° |
撮影 | 電子線照射量: 35 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
画像スキャン | デジタル画像の数: 2000 |
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解析
EMソフトウェア | 名称: RELION / カテゴリ: 3次元再構成 | ||||||||||||
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CTF補正 | 詳細: WHOLE MICROGRAPH | ||||||||||||
対称性 | 点対称性: C3 (3回回転対称) | ||||||||||||
3次元再構成 | 手法: MAXIMUM LIKELIHOOD / 解像度: 4.36 Å / 粒子像の数: 92095 / ピクセルサイズ(公称値): 1.31 Å / ピクセルサイズ(実測値): 1.31 Å 詳細: SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3121. (DEPOSITION ID: 13671). 対称性のタイプ: POINT | ||||||||||||
原子モデル構築 | プロトコル: OTHER / 空間: REAL / 詳細: METHOD--GLOBAL REFINEMENT PROTOCOL--CRYOEM | ||||||||||||
精密化 | 最高解像度: 4.36 Å | ||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 4.36 Å
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