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基本情報
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タイトル | Yeast RAVE bound to V-ATPase V1 complex | |||||||||
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![]() | V-ATPase / RAVE / assembly / HYDROLASE | |||||||||
機能・相同性 | ![]() RAVE complex / Iron uptake and transport / CBF3 complex / regulation of transcription by galactose / regulation of sulfur amino acid metabolic process / cellular response to methylmercury / vacuolar proton-transporting V-type ATPase complex assembly / vacuole-mitochondrion membrane contact site / septin ring assembly / Insulin receptor recycling ...RAVE complex / Iron uptake and transport / CBF3 complex / regulation of transcription by galactose / regulation of sulfur amino acid metabolic process / cellular response to methylmercury / vacuolar proton-transporting V-type ATPase complex assembly / vacuole-mitochondrion membrane contact site / septin ring assembly / Insulin receptor recycling / Transferrin endocytosis and recycling / ROS and RNS production in phagocytes / Amino acids regulate mTORC1 / Golgi lumen acidification / proteasome storage granule assembly / vacuolar proton-transporting V-type ATPase, V1 domain / endosomal lumen acidification / regulation of exit from mitosis / proton-transporting V-type ATPase complex / kinetochore assembly / early endosome to late endosome transport / vacuolar proton-transporting V-type ATPase complex / pexophagy / intron homing / intein-mediated protein splicing / vacuolar acidification / positive regulation of D-glucose transmembrane transport / fungal-type vacuole membrane / protein neddylation / mitotic intra-S DNA damage checkpoint signaling / mitochondrial fusion / regulation of metabolic process / silent mating-type cassette heterochromatin formation / exit from mitosis / SCF ubiquitin ligase complex / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Orc1 removal from chromatin / cullin family protein binding / Antigen processing: Ubiquitination & Proteasome degradation / DNA replication origin binding / regulation of protein-containing complex assembly / subtelomeric heterochromatin formation / ATP metabolic process / H+-transporting two-sector ATPase / negative regulation of cytoplasmic translation / proton-transporting ATPase activity, rotational mechanism / Neutrophil degranulation / proton-transporting ATP synthase activity, rotational mechanism / endomembrane system / proton transmembrane transport / regulation of mitotic cell cycle / kinetochore / transmembrane transport / G1/S transition of mitotic cell cycle / intracellular calcium ion homeostasis / cytoplasmic stress granule / G2/M transition of mitotic cell cycle / protein transport / mitotic cell cycle / protein-containing complex assembly / ubiquitin-dependent protein catabolic process / early endosome membrane / endonuclease activity / 加水分解酵素; エステル加水分解酵素 / chromosome, telomeric region / protein ubiquitination / membrane raft / Golgi membrane / mRNA binding / ATP hydrolysis activity / DNA binding / ATP binding / nucleus / membrane / 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: 2.7 Å | |||||||||
![]() | Wang H / Rubinstein JL | |||||||||
資金援助 | ![]() ![]()
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![]() | ![]() タイトル: Structure of yeast RAVE bound to a partial V complex. 著者: Hanlin Wang / Maureen Tarsio / Patricia M Kane / John L Rubinstein / ![]() ![]() 要旨: Vacuolar-type ATPases (V-ATPases) are membrane-embedded proton pumps that acidify intracellular compartments in almost all eukaryotic cells. Homologous with ATP synthases, these multisubunit enzymes ...Vacuolar-type ATPases (V-ATPases) are membrane-embedded proton pumps that acidify intracellular compartments in almost all eukaryotic cells. Homologous with ATP synthases, these multisubunit enzymes consist of a soluble catalytic V subcomplex and a membrane-embedded proton-translocating V subcomplex. The V and V subcomplexes can undergo reversible dissociation to regulate proton pumping, with reassociation of V and V requiring the protein complex known as RAVE (regulator of the ATPase of vacuoles and endosomes). In the yeast , RAVE consists of subunits Rav1p, Rav2p, and Skp1p. We used electron cryomicroscopy (cryo-EM) to determine a structure of yeast RAVE bound to V. In the structure, RAVE is an L-shaped complex with Rav2p pointing toward the membrane and Skp1p distant from both the membrane and V. Only Rav1p interacts with V, binding to a region of subunit A not found in the corresponding ATP synthase subunit. When bound to RAVE, V is in a rotational state suitable for binding the free V complex, but in the structure, it is partially disrupted, missing five of its 16 subunits. Other than these missing subunits and the conformation of the inhibitory subunit H, the V complex with RAVE appears poised for reassembly with V. | |||||||||
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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: 1.03 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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試料の構成要素
+全体 : Yeast RAVE bound to V-ATPase V1 complex
+超分子 #1: Yeast RAVE bound to V-ATPase V1 complex
+分子 #1: V-type proton ATPase catalytic subunit A
+分子 #2: V-type proton ATPase subunit B
+分子 #3: V-type proton ATPase subunit E
+分子 #4: V-type proton ATPase subunit G
+分子 #5: V-type proton ATPase subunit D
+分子 #6: V-type proton ATPase subunit F
+分子 #7: V-type proton ATPase subunit H
+分子 #8: Regulator of V-ATPase in vacuolar membrane protein 1
+分子 #9: Regulator of V-ATPase in vacuolar membrane protein 2
+分子 #10: Suppressor of kinetochore protein 1
+分子 #11: MAGNESIUM ION
+分子 #12: ADENOSINE-5'-DIPHOSPHATE
-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
緩衝液 | pH: 7.4 |
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グリッド | モデル: Homemade / 材質: COPPER/RHODIUM |
凍結 | 凍結剤: ETHANE / 装置: LEICA EM GP |
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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: FEI FALCON IV (4k x 4k) 平均電子線量: 42.0 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: FLOOD BEAM / 撮影モード: BRIGHT FIELD 最大 デフォーカス(公称値): 2.3000000000000003 µm 最小 デフォーカス(公称値): 0.5 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |