登録情報 データベース : EMDB / ID : EMD-24729 構造の表示 ダウンロードとリンクタイトル CryoEM structure of RBD domain of COVID-19 in complex with Legobody マップデータsharpened map for the complex 詳細 試料複合体 : The complex of RBD domain of COVID-19 with Legobodyタンパク質・ペプチド : Maltodextrin-binding protein,Immunoglobulin G-binding protein A,Immunoglobulin G-binding protein Gタンパク質・ペプチド : Fab_8D3_2 heavy chainタンパク質・ペプチド : Fab_8D3_2 light chainタンパク質・ペプチド : Nb_RBDタンパク質・ペプチド : Spike protein S1 詳細 キーワード RBD / maltose-binding protein / Fab / nanobody / STRUCTURAL PROTEIN機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
IgG binding / carbohydrate transmembrane transporter activity / symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / viral translation / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity ... IgG binding / carbohydrate transmembrane transporter activity / symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / viral translation / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / membrane fusion / Attachment and Entry / periplasmic space / 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 / symbiont entry into host cell / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / extracellular region / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 Octapeptide repeat / Octapeptide repeat / Protein A, Ig-binding domain / B domain / IgG-binding B / B domain / M protein-type anchor domain / GA-like domain / GA-like domain / Lysin motif ... Octapeptide repeat / Octapeptide repeat / Protein A, Ig-binding domain / B domain / IgG-binding B / B domain / M protein-type anchor domain / GA-like domain / GA-like domain / Lysin motif / LysM domain superfamily / LysM domain / LysM domain profile. / LysM domain / Immunoglobulin/albumin-binding domain superfamily / YSIRK type signal peptide / YSIRK Gram-positive signal peptide / LPXTG cell wall anchor motif / Gram-positive cocci surface proteins LPxTG motif profile. / LPXTG cell wall anchor domain / Maltose/Cyclodextrin ABC transporter, substrate-binding protein / Solute-binding family 1, conserved site / Bacterial extracellular solute-binding proteins, family 1 signature. / Bacterial extracellular solute-binding protein / Bacterial extracellular solute-binding protein / Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2 類似検索 - ドメイン・相同性 Maltodextrin-binding protein / Immunoglobulin G-binding protein G / Spike glycoprotein / Immunoglobulin G-binding protein A 類似検索 - 構成要素生物種 Streptococcus sp. (バクテリア) / Mus musculus (ハツカネズミ) / Vicugna pacos (アルパカ) / Severe acute respiratory syndrome coronavirus 2 (ウイルス)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.6 Å 詳細 データ登録者Wu XD / Rapoport TA 資金援助 米国, 1件 詳細 詳細を隠すOrganization Grant number 国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) R01GM052586 米国
引用ジャーナル : Proc Natl Acad Sci U S A / 年 : 2021タイトル : Cryo-EM structure determination of small proteins by nanobody-binding scaffolds (Legobodies).著者 : Xudong Wu / Tom A Rapoport / 要旨 : We describe a general method that allows structure determination of small proteins by single-particle cryo-electron microscopy (cryo-EM). The method is based on the availability of a target-binding ... We describe a general method that allows structure determination of small proteins by single-particle cryo-electron microscopy (cryo-EM). The method is based on the availability of a target-binding nanobody, which is then rigidly attached to two scaffolds: 1) a Fab fragment of an antibody directed against the nanobody and 2) a nanobody-binding protein A fragment fused to maltose binding protein and Fab-binding domains. The overall ensemble of ∼120 kDa, called Legobody, does not perturb the nanobody-target interaction, is easily recognizable in EM images due to its unique shape, and facilitates particle alignment in cryo-EM image processing. The utility of the method is demonstrated for the KDEL receptor, a 23-kDa membrane protein, resulting in a map at 3.2-Å overall resolution with density sufficient for de novo model building, and for the 22-kDa receptor-binding domain (RBD) of SARS-CoV-2 spike protein, resulting in a map at 3.6-Å resolution that allows analysis of the binding interface to the nanobody. The Legobody approach thus overcomes the current size limitations of cryo-EM analysis. 履歴 登録 2021年8月22日 - ヘッダ(付随情報) 公開 2021年10月6日 - マップ公開 2021年10月6日 - 更新 2025年6月4日 - 現状 2025年6月4日 処理サイト : RCSB / 状態 : 公開
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