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データを開く
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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Single Particle Cryo-EM map of human Transferrin receptor 1 - H-Ferritin complex at 5.5 Angstrom resolution. | |||||||||
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機能・相同性 | ![]() transferrin receptor activity / postsynaptic recycling endosome membrane / negative regulation of mitochondrial fusion / transferrin transport / Transferrin endocytosis and recycling / positive regulation of isotype switching / response to copper ion / Differentiation of Keratinocytes in Interfollicular Epidermis in Mammalian Skin / response to iron ion / response to manganese ion ...transferrin receptor activity / postsynaptic recycling endosome membrane / negative regulation of mitochondrial fusion / transferrin transport / Transferrin endocytosis and recycling / positive regulation of isotype switching / response to copper ion / Differentiation of Keratinocytes in Interfollicular Epidermis in Mammalian Skin / response to iron ion / response to manganese ion / iron ion sequestering activity / RND1 GTPase cycle / ferritin complex / RND2 GTPase cycle / negative regulation of ferroptosis / Scavenging by Class A Receptors / RHOB GTPase cycle / Golgi Associated Vesicle Biogenesis / ferroxidase / RHOC GTPase cycle / RHOJ GTPase cycle / RHOQ GTPase cycle / autolysosome / ferroxidase activity / CDC42 GTPase cycle / RHOH GTPase cycle / RHOG GTPase cycle / RHOA GTPase cycle / RAC2 GTPase cycle / RAC3 GTPase cycle / positive regulation of bone resorption / regulation of postsynaptic membrane neurotransmitter receptor levels / transport across blood-brain barrier / response to retinoic acid / positive regulation of T cell proliferation / negative regulation of fibroblast proliferation / clathrin-coated pit / positive regulation of B cell proliferation / RAC1 GTPase cycle / response to nutrient / Hsp70 protein binding / ferric iron binding / osteoclast differentiation / autophagosome / cellular response to leukemia inhibitory factor / acute-phase response / positive regulation of protein-containing complex assembly / clathrin-coated endocytic vesicle membrane / Iron uptake and transport / HFE-transferrin receptor complex / ferrous iron binding / recycling endosome / receptor internalization / positive regulation of protein localization to nucleus / multicellular organismal-level iron ion homeostasis / recycling endosome membrane / tertiary granule lumen / melanosome / cellular response to xenobiotic stimulus / Cargo recognition for clathrin-mediated endocytosis / extracellular vesicle / double-stranded RNA binding / Clathrin-mediated endocytosis / iron ion transport / virus receptor activity / cytoplasmic vesicle / basolateral plasma membrane / blood microparticle / ficolin-1-rich granule lumen / intracellular iron ion homeostasis / positive regulation of canonical NF-kappaB signal transduction / early endosome / response to hypoxia / endosome / endosome membrane / intracellular signal transduction / immune response / iron ion binding / external side of plasma membrane / negative regulation of cell population proliferation / intracellular membrane-bounded organelle / Neutrophil degranulation / positive regulation of gene expression / protein-containing complex binding / negative regulation of apoptotic process / protein kinase binding / perinuclear region of cytoplasm / glutamatergic synapse / cell surface / protein homodimerization activity / extracellular space / RNA binding / extracellular exosome / extracellular region / identical protein binding / nucleus / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 5.5 Å | |||||||||
![]() | Testi C / Montemiglio LC / Vallone B / Des Georges A / Boffi A / Mancia F / Baiocco P | |||||||||
![]() | ![]() タイトル: Cryo-EM structure of the human ferritin-transferrin receptor 1 complex. 著者: Linda Celeste Montemiglio / Claudia Testi / Pierpaolo Ceci / Elisabetta Falvo / Martina Pitea / Carmelinda Savino / Alessandro Arcovito / Giovanna Peruzzi / Paola Baiocco / Filippo Mancia / ...著者: Linda Celeste Montemiglio / Claudia Testi / Pierpaolo Ceci / Elisabetta Falvo / Martina Pitea / Carmelinda Savino / Alessandro Arcovito / Giovanna Peruzzi / Paola Baiocco / Filippo Mancia / Alberto Boffi / Amédée des Georges / Beatrice Vallone / ![]() ![]() 要旨: Human transferrin receptor 1 (CD71) guarantees iron supply by endocytosis upon binding of iron-loaded transferrin and ferritin. Arenaviruses and the malaria parasite exploit CD71 for cell invasion ...Human transferrin receptor 1 (CD71) guarantees iron supply by endocytosis upon binding of iron-loaded transferrin and ferritin. Arenaviruses and the malaria parasite exploit CD71 for cell invasion and epitopes on CD71 for interaction with transferrin and pathogenic hosts were identified. Here, we provide the molecular basis of the CD71 ectodomain-human ferritin interaction by determining the 3.9 Å resolution single-particle cryo-electron microscopy structure of their complex and by validating our structural findings in a cellular context. The contact surfaces between the heavy-chain ferritin and CD71 largely overlap with arenaviruses and Plasmodium vivax binding regions in the apical part of the receptor ectodomain. Our data account for transferrin-independent binding of ferritin to CD71 and suggest that select pathogens may have adapted to enter cells by mimicking the ferritin access gate. | |||||||||
履歴 |
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構造の表示
構造ビューア | EMマップ: ![]() ![]() ![]() |
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添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 59.5 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 11.6 KB 11.6 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 10.7 KB | 表示 | ![]() |
画像 | ![]() | 283.9 KB | ||
マスクデータ | ![]() | 64 MB | ![]() | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.33 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-マスク #1
ファイル | ![]() | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : Complex of human Transferrin Receptor 1 and human H-chain Ferritin
全体 | 名称: Complex of human Transferrin Receptor 1 and human H-chain Ferritin |
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要素 |
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-超分子 #1: Complex of human Transferrin Receptor 1 and human H-chain Ferritin
超分子 | 名称: Complex of human Transferrin Receptor 1 and human H-chain Ferritin タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 675 KDa |
-分子 #1: Ferritin heavy chain
分子 | 名称: Ferritin heavy chain / タイプ: protein_or_peptide / ID: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: TSQVRQNYHQ DSEAAINRQI NLELYASYVY LSMSYYFDRD DVALKNFAKY FLHQSHEERE HAEKLMKLQN QRGGRIFLQD IKKPDCDDW ESGLNAMECA LHLEKNVNQS LLELHKLATD KNDPHLCDFI ETHYLNEQVK AIKELGDHVT NLRKMGAPES G LAEYLFDK HTLG |
-分子 #2: human Transferrin Receptor 1
分子 | 名称: human Transferrin Receptor 1 / タイプ: protein_or_peptide / ID: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
組換発現 | 生物種: ![]() |
配列 | 文字列: LYWDDLKRKL SEKLDSTDFT STIKLLNENS YVPREAGSQK DENLALYVEN EFREFKLSKV WRDQHFVKIQ VKDSAQNSVI IVDKNGRLV YLVENPGGYV AYSKAATVTG KLVHANFGTK KDFEDLYTPV NGSIVIVRAG KITFAEKVAN AESLNAIGVL I YMDQTKFP ...文字列: LYWDDLKRKL SEKLDSTDFT STIKLLNENS YVPREAGSQK DENLALYVEN EFREFKLSKV WRDQHFVKIQ VKDSAQNSVI IVDKNGRLV YLVENPGGYV AYSKAATVTG KLVHANFGTK KDFEDLYTPV NGSIVIVRAG KITFAEKVAN AESLNAIGVL I YMDQTKFP IVNAELSFFG HAHLGTGDPY TPGFPSFNHT QFPPSRSSGL PNIPVQTISR AAAEKLFGNM EGDCPSDWKT DS TCRMVTS ESKNVKLTVS NVLKEIKILN IFGVIKGFVE PDHYVVVGAQ RDAWGPGAAK SGVGTALLLK LAQMFSDMVL KDG FQPSRS IIFASWSAGD FGSVGATEWL EGYLSSLHLK AFTYINLDKA VLGTSNFKVS ASPLLYTLIE KTMQNVKHPV TGQF LYQDS NWASKVEKLT LDNAAFPFLA YSGIPAVSFC FCEDTDYPYL GTTMDTYKEL IERIPELNKV ARAAAEVAGQ FVIKL THDV ELNLDYEEYN SQLLSFVRDL NQYRADIKEM GLSLQWLYSA RGDFFRATSR LTTDFGNAEK TDRFVMKKLN DRVMRV EYH FLSPYVSPKE SPFRHVFWGS GSHTLPALLE NLKLRKQNNG AFNETLFRNQ LALATWTIQG AANALSGDVW DIDNEF |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 0.2 mg/mL |
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緩衝液 | pH: 7.2 |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 40.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: OTHER / 撮影モード: OTHER |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
-原子モデル構築 1
精密化 | プロトコル: RIGID BODY FIT |
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得られたモデル | ![]() PDB-6gsr: |