登録情報 データベース : EMDB / ID : EMD-44446 ダウンロードとリンクタイトル ApoB 100 beta barrel bound to LDLR beta propeller マップデータ 詳細 試料複合体 : LDL ApoB100 bound to LDLR複合体 : ApoB100タンパク質・ペプチド : Apolipoprotein B-100複合体 : LDLRタンパク質・ペプチド : Low-density lipoprotein receptor複合体 : Legobody Fab複合体 : Legobody MBP/IgG-binding protein A/IgG-binding protein G Fusionリガンド : 2-acetamido-2-deoxy-beta-D-glucopyranose 詳細 キーワード LDL / Low density lipoprotein / LDL receptor / LIPID TRANSPORT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
mature chylomicron / Scavenging by Class H Receptors / triglyceride mobilization / positive regulation of cholesterol storage / VLDL assembly / regulation of cholesterol biosynthetic process / receptor-mediated endocytosis involved in cholesterol transport / regulation of phosphatidylcholine catabolic process / lipase binding / plasma lipoprotein particle clearance ... mature chylomicron / Scavenging by Class H Receptors / triglyceride mobilization / positive regulation of cholesterol storage / VLDL assembly / regulation of cholesterol biosynthetic process / receptor-mediated endocytosis involved in cholesterol transport / regulation of phosphatidylcholine catabolic process / lipase binding / plasma lipoprotein particle clearance / LDL remodeling / Scavenging by Class B Receptors / positive regulation of lysosomal protein catabolic process / negative regulation of astrocyte activation / VLDL clearance / negative regulation of microglial cell activation / triglyceride catabolic process / very-low-density lipoprotein particle assembly / very-low-density lipoprotein particle receptor activity / PCSK9-LDLR complex / cholesterol import / low-density lipoprotein particle clearance / clathrin heavy chain binding / negative regulation of receptor recycling / positive regulation of triglyceride biosynthetic process / intestinal cholesterol absorption / negative regulation of low-density lipoprotein particle clearance / chylomicron remnant / intermediate-density lipoprotein particle / low-density lipoprotein particle receptor activity / response to caloric restriction / Chylomicron clearance / low-density lipoprotein particle binding / amyloid-beta clearance by cellular catabolic process / Chylomicron remodeling / cellular response to lipoprotein particle stimulus / Chylomicron assembly / LDL clearance / positive regulation of lipid storage / flagellated sperm motility / Regulation of TLR by endogenous ligand / high-density lipoprotein particle clearance / chylomicron / regulation of protein metabolic process / lipoprotein catabolic process / phospholipid transport / low-density lipoprotein particle / lipoprotein biosynthetic process / cholesterol transfer activity / cholesterol transport / very-low-density lipoprotein particle / low-density lipoprotein particle remodeling / endolysosome membrane / positive regulation of macrophage derived foam cell differentiation / negative regulation of amyloid fibril formation / fertilization / cholesterol efflux / regulation of cholesterol metabolic process / negative regulation of protein metabolic process / artery morphogenesis / lipoprotein transport / Scavenging by Class A Receptors / cellular response to fatty acid / low-density lipoprotein particle receptor binding / Scavenging by Class F Receptors / Platelet sensitization by LDL / sorting endosome / amyloid-beta clearance / lipoprotein particle binding / endoplasmic reticulum exit site / cellular response to low-density lipoprotein particle stimulus / long-term memory / phagocytosis / smooth endoplasmic reticulum / retinoid metabolic process / Retinoid metabolism and transport / clathrin-coated pit / somatodendritic compartment / lipid droplet / endocytic vesicle lumen / receptor-mediated endocytosis / cholesterol metabolic process / lysosomal lumen / cholesterol homeostasis / endosome lumen / post-embryonic development / Cell surface interactions at the vascular wall / establishment of localization in cell / Post-translational protein phosphorylation / clathrin-coated endocytic vesicle membrane / Heme signaling / response to virus / phospholipid binding / lipid metabolic process / positive regulation of inflammatory response / endocytosis / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / apical part of cell / late endosome / nervous system development 類似検索 - 分子機能 Lipid transport, open beta-sheet / Apolipoprotein B100 C-terminal / : / Domain of Unknown Function (DUF1081) / Apolipoprotein B100 C terminal / Vitellinogen, open beta-sheet, subdomain 1 / Vitellinogen, open beta-sheet / Vitellinogen, open beta-sheet / DUF1943 / Vitellogenin, N-terminal ... Lipid transport, open beta-sheet / Apolipoprotein B100 C-terminal / : / Domain of Unknown Function (DUF1081) / Apolipoprotein B100 C terminal / Vitellinogen, open beta-sheet, subdomain 1 / Vitellinogen, open beta-sheet / Vitellinogen, open beta-sheet / DUF1943 / Vitellogenin, N-terminal / Lipovitellin-phosvitin complex, superhelical domain / Vitellinogen, beta-sheet N-terminal / Lipid transport protein, beta-sheet shell / Lipoprotein amino terminal region / Vitellogenin domain profile. / Lipoprotein N-terminal Domain / : / Low-density lipoprotein receptor repeat class B / LDL-receptor class B (LDLRB) repeat profile. / LDLR class B repeat / Low-density lipoprotein-receptor YWTD domain / Low-density lipoprotein receptor domain class A / Low-density lipoprotein (LDL) receptor class A, conserved site / LDL-receptor class A (LDLRA) domain signature. / : / Calcium-binding EGF domain / LDL-receptor class A (LDLRA) domain profile. / Low-density lipoprotein receptor domain class A / Low-density lipoprotein (LDL) receptor class A repeat / LDL receptor-like superfamily / Six-bladed beta-propeller, TolB-like / Coagulation Factor Xa inhibitory site / EGF-type aspartate/asparagine hydroxylation site / EGF-like calcium-binding, conserved site / Calcium-binding EGF-like domain signature. / Aspartic acid and asparagine hydroxylation site. / EGF-like calcium-binding domain / Calcium-binding EGF-like domain / Epidermal growth factor-like domain. / EGF-like domain profile. / Growth factor receptor cysteine-rich domain superfamily / EGF-like domain signature 2. / EGF-like domain / Armadillo-type fold 類似検索 - ドメイン・相同性 Low-density lipoprotein receptor / Apolipoprotein B-100 類似検索 - 構成要素生物種 Homo sapiens (ヒト) / Mus musculus (ハツカネズミ) / Escherichia coli (大腸菌)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 4.8 Å 詳細 データ登録者Dearborn AD / Reimund M / Graziano G / Lei H / Kumar A / Neufeld EB / Remaley AT / Marcotrigiano J 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 Allergy and Infectious Diseases (NIH/NIAID) 米国
引用ジャーナル : Nature / 年 : 2025タイトル : Structure of apolipoprotein B100 bound to the low-density lipoprotein receptor.著者 : Mart Reimund / Altaira D Dearborn / Giorgio Graziano / Haotian Lei / Anthony M Ciancone / Ashish Kumar / Ronald Holewinski / Edward B Neufeld / Francis J O'Reilly / Alan T Remaley / Joseph Marcotrigiano / 要旨 : Apolipoprotein B100 (apoB100) is a structural component of low-density lipoprotein (LDL) and a ligand for the LDL receptor (LDLR). Mutations in apoB100 or in LDLR cause familial ... Apolipoprotein B100 (apoB100) is a structural component of low-density lipoprotein (LDL) and a ligand for the LDL receptor (LDLR). Mutations in apoB100 or in LDLR cause familial hypercholesterolaemia, an autosomal dominant disease that is characterized by a marked increase in LDL cholesterol (LDL-C) and a higher risk of cardiovascular disease. The structure of apoB100 on LDL and its interaction with LDLR are poorly understood. Here we present the cryo-electron microscopy structures of apoB100 on LDL bound to the LDLR and a nanobody complex, which can form a C-symmetric, higher-order complex. Using local refinement, we determined high-resolution structures of the interfaces between apoB100 and LDLR. One binding interface is formed between several small-ligand-binding modules of LDLR and a series of basic patches that are scattered along a β-belt formed by apoB100, encircling LDL. The other binding interface is formed between the β-propeller domain of LDLR and the N-terminal domain of apoB100. Our results reveal how both interfaces are involved in LDL dimer formation, and how LDLR cycles between LDL- and self-bound conformations. In addition, known mutations in either apoB100 or LDLR, associated with high levels of LDL-C, are located at the LDL-LDLR interface. 履歴 登録 2024年4月11日 - ヘッダ(付随情報) 公開 2024年12月25日 - マップ公開 2024年12月25日 - 更新 2025年3月5日 - 現状 2025年3月5日 処理サイト : RCSB / 状態 : 公開
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