+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-27183 | ||||||||||||
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タイトル | Asymmetric unit of AP-1, Arf1, Nef lattice on MHC-I lipopeptide incorporated wide(r) membrane tubes | ||||||||||||
マップデータ | Asymmetric unit of AP-1, Arf1, Nef lattice on MHC-I lipopeptide incorporated wide(r) membrane tubes | ||||||||||||
試料 |
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キーワード | nef / AP / trafficking / PROTEIN TRANSPORT | ||||||||||||
機能・相同性 | 機能・相同性情報 basolateral protein secretion / perturbation by virus of host immune response / negative regulation of CD4 production / mitotic cleavage furrow ingression / symbiont-mediated suppression of host T-cell mediated immune response / AP-1 adaptor complex / trans-Golgi Network Vesicle Budding / endosome to melanosome transport / positive regulation of natural killer cell degranulation / Lysosome Vesicle Biogenesis ...basolateral protein secretion / perturbation by virus of host immune response / negative regulation of CD4 production / mitotic cleavage furrow ingression / symbiont-mediated suppression of host T-cell mediated immune response / AP-1 adaptor complex / trans-Golgi Network Vesicle Budding / endosome to melanosome transport / positive regulation of natural killer cell degranulation / Lysosome Vesicle Biogenesis / platelet dense granule organization / regulation of receptor internalization / protein trimerization / melanosome assembly / regulation of Arp2/3 complex-mediated actin nucleation / symbiont-mediated suppression of host antigen processing and presentation of peptide antigen via MHC class I / Golgi to lysosome transport / Intra-Golgi traffic / Golgi to vacuole transport / symbiont-mediated suppression of host antigen processing and presentation of peptide antigen via MHC class II / Synthesis of PIPs at the Golgi membrane / Golgi Associated Vesicle Biogenesis / GTP-dependent protein binding / suppression by virus of host autophagy / clathrin adaptor activity / MHC class II antigen presentation / melanosome organization / thioesterase binding / CD4 receptor binding / Nef Mediated CD4 Down-regulation / dendritic spine organization / determination of left/right symmetry / long-term synaptic depression / COPI-dependent Golgi-to-ER retrograde traffic / クラスリン / Lysosome Vesicle Biogenesis / clathrin binding / Golgi Associated Vesicle Biogenesis / positive regulation of natural killer cell mediated cytotoxicity / host cell Golgi membrane / cell leading edge / Synthesis of PIPs at the plasma membrane / kinesin binding / T cell mediated cytotoxicity directed against tumor cell target / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-dependent / positive regulation of memory T cell activation / TAP complex binding / intracellular copper ion homeostasis / antigen processing and presentation of exogenous peptide antigen via MHC class I / Golgi medial cisterna / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / positive regulation of CD8-positive, alpha-beta T cell proliferation / protein targeting / CD8 receptor binding / MHC class I protein binding / endoplasmic reticulum exit site / beta-2-microglobulin binding / COPI-mediated anterograde transport / TAP binding / regulation of calcium-mediated signaling / クラスリン / protection from natural killer cell mediated cytotoxicity / vesicle-mediated transport / ウイルスのライフサイクル / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / MHC class II antigen presentation / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / detection of bacterium / Neutrophil degranulation / T cell receptor binding / sarcomere / 低分子量GTPアーゼ / trans-Golgi network membrane / Nef mediated downregulation of MHC class I complex cell surface expression / kidney development / virion component / lumenal side of endoplasmic reticulum membrane / Endosomal/Vacuolar pathway / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / intracellular protein transport / cytoplasmic vesicle membrane / ゴルジ体 / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / MHC class I peptide loading complex / T cell mediated cytotoxicity / recycling endosome / antigen processing and presentation of endogenous peptide antigen via MHC class I / cellular response to virus / small GTPase binding / positive regulation of T cell cytokine production / MHC class I protein complex / SH3 domain binding / positive regulation of T cell mediated cytotoxicity / recycling endosome membrane / phagocytic vesicle membrane / peptide antigen binding / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell 類似検索 - 分子機能 | ||||||||||||
生物種 | Homo sapiens (ヒト) / Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) / Mus musculus (ハツカネズミ) | ||||||||||||
手法 | サブトモグラム平均法 / クライオ電子顕微鏡法 / 解像度: 9.2 Å | ||||||||||||
データ登録者 | Hooy RM / Hurley JH | ||||||||||||
資金援助 | 米国, 3件
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引用 | ジャーナル: Sci Adv / 年: 2022 タイトル: Self-assembly and structure of a clathrin-independent AP-1:Arf1 tubular membrane coat. 著者: Richard M Hooy / Yuichiro Iwamoto / Dan A Tudorica / Xuefeng Ren / James H Hurley / 要旨: The adaptor protein (AP) complexes not only form the inner layer of clathrin coats but also have clathrin-independent roles in membrane traffic whose mechanisms are unknown. HIV-1 Nef hijacks AP-1 to ...The adaptor protein (AP) complexes not only form the inner layer of clathrin coats but also have clathrin-independent roles in membrane traffic whose mechanisms are unknown. HIV-1 Nef hijacks AP-1 to sequester major histocompatibility complex class I (MHC-I), evading immune detection. We found that AP-1:Arf1:Nef:MHC-I forms a coat on tubulated membranes without clathrin and determined its structure. The coat assembles via Arf1 dimer interfaces. AP-1-positive tubules are enriched in cells upon clathrin knockdown. Nef localizes preferentially to AP-1 tubules in cells, explaining how Nef sequesters MHC-I. Coat contact residues are conserved across Arf isoforms and the Arf-dependent AP complexes AP-1, AP-3, and AP-4. Thus, AP complexes can self-assemble with Arf1 into tubular coats without clathrin or other scaffolding factors. The AP-1:Arf1 coat defines the structural basis of a broader class of tubulovesicular membrane coats as an intermediate in clathrin vesicle formation from internal membranes and as an MHC-I sequestration mechanism in HIV-1 infection. | ||||||||||||
履歴 |
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-構造の表示
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 | emd_27183.map.gz | 2.2 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-27183-v30.xml emd-27183.xml | 29.2 KB 29.2 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_27183_fsc.xml | 3.5 KB | 表示 | FSCデータファイル |
画像 | emd_27183.png | 41.5 KB | ||
マスクデータ | emd_27183_msk_1.map | 3.4 MB | マスクマップ | |
その他 | emd_27183_half_map_1.map.gz emd_27183_half_map_2.map.gz | 3.1 MB 3.1 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-27183 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-27183 | HTTPS FTP |
-関連構造データ
関連構造データ | 8d4eMC 7ux3C 8d4cC 8d4dC 8d4fC 8d4gC 8d9rC 8d9sC 8d9tC 8d9uC 8d9vC 8d9wC M: このマップから作成された原子モデル C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_27183.map.gz / 形式: CCP4 / 大きさ: 3.4 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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注釈 | Asymmetric unit of AP-1, Arf1, Nef lattice on MHC-I lipopeptide incorporated wide(r) membrane tubes | ||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 2.1 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 | emd_27183_msk_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Half Map 1
ファイル | emd_27183_half_map_1.map | ||||||||||||
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注釈 | Half Map 1 | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Half Map 2
ファイル | emd_27183_half_map_2.map | ||||||||||||
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注釈 | Half Map 2 | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
+全体 : Complex of AP-1, Arf1, Nef and MHC-I cytosolic tail on a tubulate...
+超分子 #1: Complex of AP-1, Arf1, Nef and MHC-I cytosolic tail on a tubulate...
+超分子 #2: AP-1 heterotetramer
+分子 #1: ADP-ribosylation factor 1
+分子 #2: Protein Nef
+分子 #3: HLA class I histocompatibility antigen, A alpha chain
+分子 #4: AP-1 complex subunit beta-1
+分子 #5: AP-1 complex subunit gamma-1
+分子 #6: AP-1 complex subunit mu-1
+分子 #7: AP-1 complex subunit sigma-3
+分子 #8: GUANOSINE-5'-TRIPHOSPHATE
+分子 #9: MAGNESIUM ION
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | サブトモグラム平均法 |
試料の集合状態 | particle |
-試料調製
濃度 | 0.2 mg/mL | |||||||||||||||
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緩衝液 | pH: 7.2 構成要素:
詳細: HEPES/KOAc concentrated stocks are diluted to their final concentrations then pH'd to 7.2 with KOH prior to use in experiments. | |||||||||||||||
グリッド | モデル: EMS Lacey Carbon / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: LACEY / 支持フィルム - Film thickness: 50 | |||||||||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 298 K / 装置: FEI VITROBOT MARK IV 詳細: 60 second wait, 3-5 second blot, 597 filter paper, 0.5 second drain. Sample was supplemented with 10nm BSA-gold fiducials. 3.5ul of the mixture was double-side blotted.. |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / 最大 デフォーカス(公称値): 4.5 µm / 最小 デフォーカス(公称値): 1.5 µm / 倍率(公称値): 42000 |
特殊光学系 | エネルギーフィルター - スリット幅: 25 eV |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) デジタル化 - サイズ - 横: 5760 pixel / デジタル化 - サイズ - 縦: 4092 pixel / 撮影したグリッド数: 1 / 平均露光時間: 3.0 sec. / 平均電子線量: 3.0 e/Å2 詳細: Tilt images were collected in movie-mode. Each movie/tilt consisted of 3-4 frames each |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |