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基本情報
登録情報 | データベース: PDB / ID: 6xt9 | ||||||
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タイトル | Subunits BBS 1,4,8,9,18 of the human BBSome complex | ||||||
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![]() | PROTEIN TRANSPORT / ciliary transport / Arl6 effector / adaptor protein / complex | ||||||
機能・相同性 | ![]() regulation of non-motile cilium assembly / protein localization to photoreceptor outer segment / receptor localization to non-motile cilium / BBSome / photoreceptor cell morphogenesis / retinal rod cell development / sperm flagellum assembly / negative regulation of appetite by leptin-mediated signaling pathway / photoreceptor cell outer segment organization / smoothened binding ...regulation of non-motile cilium assembly / protein localization to photoreceptor outer segment / receptor localization to non-motile cilium / BBSome / photoreceptor cell morphogenesis / retinal rod cell development / sperm flagellum assembly / negative regulation of appetite by leptin-mediated signaling pathway / photoreceptor cell outer segment organization / smoothened binding / olfactory behavior / regulation of cilium beat frequency involved in ciliary motility / sensory processing / microtubule anchoring at centrosome / protein localization to organelle / ciliary transition zone / photoreceptor connecting cilium / melanosome transport / patched binding / ventricular system development / negative regulation of actin filament polymerization / BBSome-mediated cargo-targeting to cilium / positive regulation of cilium assembly / Golgi to plasma membrane protein transport / striatum development / protein localization to cilium / positive regulation of multicellular organism growth / maintenance of protein location in nucleus / non-motile cilium assembly / regulation of stress fiber assembly / brain morphogenesis / photoreceptor cell maintenance / negative regulation of systemic arterial blood pressure / hormone metabolic process / retina homeostasis / fertilization / non-motile cilium / centrosome cycle / protein localization to centrosome / neural precursor cell proliferation / cartilage development / motile cilium / fat pad development / erythrocyte homeostasis / ciliary membrane / eating behavior / pericentriolar material / beta-tubulin binding / spermatid development / fat cell differentiation / social behavior / adult behavior / heart looping / face development / dendrite development / B cell homeostasis / dynactin binding / mitotic cytokinesis / regulation of lipid metabolic process / axoneme / cilium assembly / photoreceptor outer segment / alpha-tubulin binding / intracellular transport / photoreceptor inner segment / centriole / visual perception / response to endoplasmic reticulum stress / hippocampus development / regulation of cytokinesis / phosphoprotein binding / neural tube closure / cerebral cortex development / lipid metabolic process / centriolar satellite / microtubule cytoskeleton organization / Wnt signaling pathway / fibrillar center / neuron migration / sensory perception of smell / protein transport / retina development in camera-type eye / protein-macromolecule adaptor activity / gene expression / RNA polymerase II-specific DNA-binding transcription factor binding / ciliary basal body / cilium / negative regulation of gene expression / centrosome / nucleoplasm / nucleus / membrane / cytosol / cytoplasm 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: 3.8 Å | ||||||
![]() | Klink, B.U. / Raunser, S. / Gatsogiannis, C. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure of the human BBSome core complex. 著者: Björn Udo Klink / Christos Gatsogiannis / Oliver Hofnagel / Alfred Wittinghofer / Stefan Raunser / ![]() 要旨: The BBSome is a heterooctameric protein complex that plays a central role in primary cilia homeostasis. Its malfunction causes the severe ciliopathy Bardet-Biedl syndrome (BBS). The complex acts as a ...The BBSome is a heterooctameric protein complex that plays a central role in primary cilia homeostasis. Its malfunction causes the severe ciliopathy Bardet-Biedl syndrome (BBS). The complex acts as a cargo adapter that recognizes signaling proteins such as GPCRs and links them to the intraflagellar transport machinery. The underlying mechanism is poorly understood. Here we present a high-resolution cryo-EM structure of a human heterohexameric core subcomplex of the BBSome. The structure reveals the architecture of the complex in atomic detail. It explains how the subunits interact with each other and how disease-causing mutations hamper this interaction. The complex adopts a conformation that is open for binding to membrane-associated GTPase Arl6 and a large positively charged patch likely strengthens the interaction with the membrane. A prominent negatively charged cleft at the center of the complex is likely involved in binding of positively charged signaling sequences of cargo proteins. | ||||||
履歴 |
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構造の表示
ムービー |
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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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PDBx/mmCIF形式 | ![]() | 395.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 309.9 KB | 表示 | ![]() |
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その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
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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: 65159.266 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#2: タンパク質 | 分子量: 59463.020 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#3: タンパク質 | 分子量: 58702.539 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#4: タンパク質 | 分子量: 99383.914 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#5: タンパク質 | 分子量: 15430.824 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-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: BBSome core complex / タイプ: COMPLEX 詳細: BBSome core complex containing BBS1,4, 8, 9 and 18. BBS5 was also present in the sample preparation, but was only visible in a subset of particles (see related entry) Entity ID: all / 由来: RECOMBINANT | ||||||||||||||||
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分子量 | 実験値: NO | ||||||||||||||||
由来(天然) | 生物種: ![]() | ||||||||||||||||
由来(組換発現) | 生物種: ![]() | ||||||||||||||||
緩衝液 | pH: 7.5 | ||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.08 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: The sample was cross linked with 0.5% glutaraldehyde | ||||||||||||||||
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: UltrAuFoil | ||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK III / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 286 K 詳細: double blot with 2 minutes incubation after first sample application |
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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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / Calibrated defocus min: 300 nm / 最大 デフォーカス(補正後): 1000 nm / Cs: 2.7 mm |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 平均露光時間: 15 sec. / 電子線照射量: 67 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 実像数: 15266 |
電子光学装置 | エネルギーフィルタースリット幅: 20 eV / 位相板: VOLTA PHASE PLATE |
画像スキャン | 動画フレーム数/画像: 50 / 利用したフレーム数/画像: 1-50 |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 2831329 | |||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | |||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 862114 / 対称性のタイプ: POINT |