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基本情報
登録情報 | データベース: PDB / ID: 7rpk | ||||||||||||||||||
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タイトル | Cryo-EM structure of murine Dispatched in complex with Sonic hedgehog | ||||||||||||||||||
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![]() | MEMBRANE PROTEIN / RND transporter / Hedgehog binding / Sterol sensing domain / sodium binding | ||||||||||||||||||
機能・相同性 | ![]() forebrain regionalization / cell proliferation in external granule layer / epithelial-mesenchymal signaling involved in prostate gland development / Release of Hh-Np from the secreting cell / ventral spinal cord interneuron specification / respiratory tube development / Ligand-receptor interactions / striated muscle tissue development / patched ligand maturation / Activation of SMO ...forebrain regionalization / cell proliferation in external granule layer / epithelial-mesenchymal signaling involved in prostate gland development / Release of Hh-Np from the secreting cell / ventral spinal cord interneuron specification / respiratory tube development / Ligand-receptor interactions / striated muscle tissue development / patched ligand maturation / Activation of SMO / trachea development / positive regulation of skeletal muscle cell proliferation / right lung development / left lung development / primary prostatic bud elongation / regulation of mesenchymal cell proliferation involved in prostate gland development / mesenchymal smoothened signaling pathway involved in prostate gland development / positive regulation of sclerotome development / tracheoesophageal septum formation / negative regulation of ureter smooth muscle cell differentiation / positive regulation of ureter smooth muscle cell differentiation / negative regulation of kidney smooth muscle cell differentiation / positive regulation of kidney smooth muscle cell differentiation / regulation of odontogenesis / mesenchymal-epithelial cell signaling involved in prostate gland development / positive regulation of mesenchymal cell proliferation involved in ureter development / trunk neural crest cell migration / anatomical structure formation involved in morphogenesis / hindgut morphogenesis / polarity specification of anterior/posterior axis / negative regulation of alpha-beta T cell differentiation / regulation of prostatic bud formation / regulation of glial cell proliferation / formation of anatomical boundary / positive regulation of striated muscle cell differentiation / metanephric mesenchymal cell proliferation involved in metanephros development / diaphragm development / regulation of epithelial cell proliferation involved in prostate gland development / trachea morphogenesis / cholesterol-protein transferase activity / telencephalon regionalization / bud outgrowth involved in lung branching / epithelial-mesenchymal cell signaling / Hedgehog ligand biogenesis / laminin-1 binding / lung epithelium development / vasculogenesis involved in coronary vascular morphogenesis / negative regulation of cholesterol efflux / salivary gland cavitation / spinal cord dorsal/ventral patterning / myotube differentiation / determination of left/right asymmetry in lateral mesoderm / negative regulation of mesenchymal cell apoptotic process / negative regulation of T cell differentiation in thymus / cell development / spinal cord motor neuron differentiation / positive regulation of cerebellar granule cell precursor proliferation / positive regulation of T cell differentiation in thymus / establishment of epithelial cell polarity / skeletal muscle cell proliferation / prostate gland development / intermediate filament organization / limb bud formation / embryonic skeletal system development / skeletal muscle fiber differentiation / cerebellar granule cell precursor proliferation / mesenchymal cell apoptotic process / patched binding / animal organ formation / embryonic digestive tract morphogenesis / lung lobe morphogenesis / hindbrain development / positive regulation of skeletal muscle tissue development / epithelial cell proliferation involved in salivary gland morphogenesis / somite development / ectoderm development / neuron fate commitment / embryonic foregut morphogenesis / negative regulation of dopaminergic neuron differentiation / mesenchymal cell proliferation involved in lung development / stem cell development / positive regulation of immature T cell proliferation in thymus / branching involved in prostate gland morphogenesis / mesenchymal cell proliferation / lymphoid progenitor cell differentiation / dorsal/ventral neural tube patterning / self proteolysis / smooth muscle tissue development / embryonic morphogenesis / artery development / positive regulation of astrocyte differentiation / CD4-positive or CD8-positive, alpha-beta T cell lineage commitment / negative thymic T cell selection / pattern specification process / regulation of stem cell proliferation / positive regulation of epithelial cell proliferation involved in prostate gland development / male genitalia development / branching involved in salivary gland morphogenesis / embryonic pattern specification / epithelial cell proliferation involved in prostate gland development 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: 2.7 Å | ||||||||||||||||||
![]() | Asarnow, D. / Wang, Q. / Ding, K. / Cheng, Y. / Beachy, P.A. | ||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Dispatched uses Na flux to power release of lipid-modified Hedgehog. 著者: Qianqian Wang / Daniel E Asarnow / Ke Ding / Randall K Mann / Jason Hatakeyama / Yunxiao Zhang / Yong Ma / Yifan Cheng / Philip A Beachy / ![]() ![]() 要旨: The Dispatched protein, which is related to the NPC1 and PTCH1 cholesterol transporters and to H-driven transporters of the RND family, enables tissue-patterning activity of the lipid-modified ...The Dispatched protein, which is related to the NPC1 and PTCH1 cholesterol transporters and to H-driven transporters of the RND family, enables tissue-patterning activity of the lipid-modified Hedgehog protein by releasing it from tightly -localized sites of embryonic expression. Here we determine a cryo-electron microscopy structure of the mouse protein Dispatched homologue 1 (DISP1), revealing three Na ions coordinated within a channel that traverses its transmembrane domain. We find that the rate of Hedgehog export is dependent on the Na gradient across the plasma membrane. The transmembrane channel and Na binding are disrupted in DISP1-NNN, a variant with asparagine substitutions for three intramembrane aspartate residues that each coordinate and neutralize the charge of one of the three Na ions. DISP1-NNN and variants that disrupt single Na sites retain binding to, but are impaired in export of the lipid-modified Hedgehog protein to the SCUBE2 acceptor. Interaction of the amino-terminal signalling domain of the Sonic hedgehog protein (ShhN) with DISP1 occurs via an extensive buried surface area and contacts with an extended furin-cleaved DISP1 arm. Variability analysis reveals that ShhN binding is restricted to one extreme of a continuous series of DISP1 conformations. The bound and unbound DISP1 conformations display distinct Na-site occupancies, which suggests a mechanism by which transmembrane Na flux may power extraction of the lipid-linked Hedgehog signal from the membrane. Na-coordinating residues in DISP1 are conserved in PTCH1 and other metazoan RND family members, suggesting that Na flux powers their conformationally driven activities. | ||||||||||||||||||
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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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PDBx/mmCIF形式 | ![]() | 249.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 192.1 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 2.6 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 2.7 MB | 表示 | |
XML形式データ | ![]() | 45.7 KB | 表示 | |
CIF形式データ | ![]() | 66.9 KB | 表示 | |
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
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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 2種, 2分子 AH
#1: タンパク質 | 分子量: 152071.141 Da / 分子数: 1 / 断片: UNP residues 172-1521 / 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: 18732.090 Da / 分子数: 1 / 断片: UNP residues 26-189 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
-糖 , 1種, 5分子 
#7: 糖 | ChemComp-NAG / |
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-非ポリマー , 8種, 77分子 














#3: 化合物 | ChemComp-Y01 / #4: 化合物 | #5: 化合物 | #6: 化合物 | ChemComp-6OE / ( | #8: 化合物 | #9: 化合物 | ChemComp-ZN / | #10: 化合物 | ChemComp-SO4 / | #11: 水 | ChemComp-HOH / | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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Has protein modification | Y |
-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: Dispatched protein complexed with Sonic hedgehog 26-189 タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT | |||||||||||||||||||||||||||||||||||
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分子量 | 値: 0.15191493 MDa / 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: 1.56 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | |||||||||||||||||||||||||||||||||||
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: Quantifoil R1.2/1.3 | |||||||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 281 K 詳細: Wait time 20 seconds, blot time 4 seconds, blotting force 0 |
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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 詳細: Automated data collection in SerialEM using 3x3 image shift pattern (one shot per hole), using beam tilt compensation. |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 105000 X / 倍率(補正後): 59880 X / 最大 デフォーカス(公称値): 1500 nm / 最小 デフォーカス(公称値): 500 nm / Cs: 2.7 mm / C2レンズ絞り径: 100 µm / アライメント法: COMA FREE |
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 | 電子線照射量: 66.7 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 1 / 実像数: 1687 |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV |
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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: 1406648 | |||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | |||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 2.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 204786 / アルゴリズム: FOURIER SPACE / クラス平均像の数: 1 / 対称性のタイプ: POINT | |||||||||||||||||||||||||||||||||
原子モデル構築 | B value: 69.9 / プロトコル: FLEXIBLE FIT / 空間: REAL |