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基本情報
登録情報 | データベース: PDB / ID: 9dz2 | |||||||||
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タイトル | Cryo-EM structure of Sudan ebolavirus glycoprotein complexed with hNPC1-C | |||||||||
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![]() | VIRAL PROTEIN / SUDV / hNPC1-C / glycoprotein | |||||||||
機能・相同性 | ![]() cyclodextrin metabolic process / cholesterol storage / membrane raft organization / intracellular cholesterol transport / intracellular lipid transport / sterol transport / intestinal cholesterol absorption / LDL clearance / negative regulation of epithelial cell apoptotic process / bile acid metabolic process ...cyclodextrin metabolic process / cholesterol storage / membrane raft organization / intracellular cholesterol transport / intracellular lipid transport / sterol transport / intestinal cholesterol absorption / LDL clearance / negative regulation of epithelial cell apoptotic process / bile acid metabolic process / programmed cell death / cholesterol transfer activity / cholesterol transport / establishment of protein localization to membrane / adult walking behavior / cholesterol efflux / lysosomal transport / cholesterol binding / negative regulation of macroautophagy / cellular response to steroid hormone stimulus / protein glycosylation / cellular response to low-density lipoprotein particle stimulus / response to cadmium ion / cholesterol metabolic process / negative regulation of TORC1 signaling / neurogenesis / cholesterol homeostasis / macroautophagy / liver development / autophagy / endocytosis / late endosome membrane / transmembrane signaling receptor activity / nuclear envelope / signaling receptor activity / virus receptor activity / clathrin-dependent endocytosis of virus by host cell / gene expression / symbiont-mediated-mediated suppression of host tetherin activity / entry receptor-mediated virion attachment to host cell / lysosome / symbiont-mediated suppression of host innate immune response / membrane raft / response to xenobiotic stimulus / lysosomal membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / perinuclear region of cytoplasm / host cell plasma membrane / virion membrane / endoplasmic reticulum / Golgi apparatus / extracellular exosome / extracellular region / 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: 3.31 Å | |||||||||
![]() | Bu, F. / Ye, G. / Liu, B. / Li, F. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM structure of Sudan ebolavirus glycoprotein complexed with its human endosomal receptor NPC1. 著者: Fan Bu / Gang Ye / Hailey Turner-Hubbard / Morgan Herbst / Bin Liu / Fang Li / ![]() 要旨: Sudan ebolavirus (SUDV), like Ebola ebolavirus (EBOV), poses a significant threat to global health and security due to its high lethality. However, unlike EBOV, there are no approved vaccines or ...Sudan ebolavirus (SUDV), like Ebola ebolavirus (EBOV), poses a significant threat to global health and security due to its high lethality. However, unlike EBOV, there are no approved vaccines or treatments for SUDV, and its structural interaction with the endosomal receptor NPC1 remains unclear. This study compares the glycoproteins of SUDV and EBOV (in their proteolytically primed forms) and their binding to human NPC1 (hNPC1). The findings reveal that the SUDV glycoprotein binds significantly more strongly to hNPC1 than the EBOV glycoprotein. Using cryo-EM, we determined the structure of the SUDV glycoprotein/hNPC1 complex, identifying four key residues in the SUDV glycoprotein that differ from those in the EBOV glycoprotein and influence hNPC1 binding: Ile79, Ala141, and Pro148 enhance binding, while Gln142 reduces it. Collectively, these residue differences account for SUDV's stronger binding affinity for hNPC1. This study provides critical insights into receptor recognition across all viruses in the ebolavirus genus, including their interactions with receptors in bats, their suspected reservoir hosts. These findings advance our understanding of ebolavirus cell entry, tissue tropism, and host range. | |||||||||
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構造の表示
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 | ![]() | 241.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 189.7 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-検証レポート
文書・要旨 | ![]() | 1.3 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 49.3 KB | 表示 | |
CIF形式データ | ![]() | 73.8 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 47323MC 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 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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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: 31792.486 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #2: タンパク質 | 分子量: 21546.752 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: GP / 発現宿主: ![]() #3: タンパク質 | 分子量: 18787.199 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: GP / 発現宿主: ![]() 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: SUDV GP complexed with NPC1-C / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 6 |
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: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
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: TFS KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 53.7 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 | 名称: PHENIX / バージョン: 1.21.1_5286: / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.31 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 159976 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 5f1b Accession code: 5f1b / Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||
拘束条件 |
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