- EMDB-6017: Dynein motor domain with truncated linker in complex with Lis1 in... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-6017
タイトル
Dynein motor domain with truncated linker in complex with Lis1 in the absence of nucleotide
マップデータ
Reconstruction of dynein motor domain with truncated linker in complex with Lis1 in the absence of nucleotide
試料
試料: Dynein motor domain with truncated linker in complex with Lis1 in the absence of nucleotide
タンパク質・ペプチド: Dynein heavy chain
タンパク質・ペプチド: Lis1
キーワード
dynein / lis1 / regulation mechanism
機能・相同性
機能・相同性情報
microtubule sliding / karyogamy / microtubule organizing center organization / establishment of mitotic spindle localization / nuclear migration along microtubule / astral microtubule / vesicle transport along microtubule / microtubule plus-end binding / spindle pole body / minus-end-directed microtubule motor activity ...microtubule sliding / karyogamy / microtubule organizing center organization / establishment of mitotic spindle localization / nuclear migration along microtubule / astral microtubule / vesicle transport along microtubule / microtubule plus-end binding / spindle pole body / minus-end-directed microtubule motor activity / microtubule associated complex / dynein light intermediate chain binding / cytoplasmic dynein complex / dynein intermediate chain binding / nuclear migration / dynein complex binding / establishment of mitotic spindle orientation / mitotic sister chromatid segregation / Antigen processing: Ubiquitination & Proteasome degradation / cytoplasmic microtubule / cytoplasmic microtubule organization / Neutrophil degranulation / mitotic spindle organization / kinetochore / spindle pole / nuclear envelope / cell cortex / cell division / ATP hydrolysis activity / ATP binding / identical protein binding / nucleus / cytoplasm 類似検索 - 分子機能
Dynein regulator LIS1 / LIS1, N-terminal / : / DYN1, AAA+ ATPase lid domain / : / Dynein heavy chain, ATPase lid domain / P-loop containing dynein motor region / Dynein heavy chain, tail / Dynein heavy chain, N-terminal region 1 / Dynein heavy chain region D6 P-loop domain ...Dynein regulator LIS1 / LIS1, N-terminal / : / DYN1, AAA+ ATPase lid domain / : / Dynein heavy chain, ATPase lid domain / P-loop containing dynein motor region / Dynein heavy chain, tail / Dynein heavy chain, N-terminal region 1 / Dynein heavy chain region D6 P-loop domain / Dynein heavy chain, linker / Dynein heavy chain, AAA module D4 / Dynein heavy chain, coiled coil stalk / Dynein heavy chain / Dynein heavy chain, hydrolytic ATP-binding dynein motor region / Dynein heavy chain, ATP-binding dynein motor region / Dynein heavy chain AAA lid domain / Dynein heavy chain AAA lid domain superfamily / Dynein heavy chain, domain 2, N-terminal / Dynein heavy chain, linker, subdomain 3 / Dynein heavy chain, AAA1 domain, small subdomain / Dynein heavy chain region D6 P-loop domain / Dynein heavy chain, N-terminal region 2 / Hydrolytic ATP binding site of dynein motor region / Microtubule-binding stalk of dynein motor / P-loop containing dynein motor region D4 / ATP-binding dynein motor region / Dynein heavy chain AAA lid domain / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / WD domain, G-beta repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
Dynein heavy chain, cytoplasmic / Nuclear distribution protein PAC1 類似検索 - 構成要素
ジャーナル: Elife / 年: 2014 タイトル: Lis1 regulates dynein by sterically blocking its mechanochemical cycle. 著者: Katerina Toropova / Sirui Zou / Anthony J Roberts / William B Redwine / Brian S Goodman / Samara L Reck-Peterson / Andres E Leschziner / 要旨: Regulation of cytoplasmic dynein's motor activity is essential for diverse eukaryotic functions, including cell division, intracellular transport, and brain development. The dynein regulator Lis1 is ...Regulation of cytoplasmic dynein's motor activity is essential for diverse eukaryotic functions, including cell division, intracellular transport, and brain development. The dynein regulator Lis1 is known to keep dynein bound to microtubules; however, how this is accomplished mechanistically remains unknown. We have used three-dimensional electron microscopy, single-molecule imaging, biochemistry, and in vivo assays to help establish this mechanism. The three-dimensional structure of the dynein-Lis1 complex shows that binding of Lis1 to dynein's AAA+ ring sterically prevents dynein's main mechanical element, the 'linker', from completing its normal conformational cycle. Single-molecule experiments show that eliminating this block by shortening the linker to a point where it can physically bypass Lis1 renders single dynein motors insensitive to regulation by Lis1. Our data reveal that Lis1 keeps dynein in a persistent microtubule-bound state by directly blocking the progression of its mechanochemical cycle.
全体 : Dynein motor domain with truncated linker in complex with Lis1 in...
全体
名称: Dynein motor domain with truncated linker in complex with Lis1 in the absence of nucleotide
要素
試料: Dynein motor domain with truncated linker in complex with Lis1 in the absence of nucleotide
タンパク質・ペプチド: Dynein heavy chain
タンパク質・ペプチド: Lis1
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超分子 #1000: Dynein motor domain with truncated linker in complex with Lis1 in...
超分子
名称: Dynein motor domain with truncated linker in complex with Lis1 in the absence of nucleotide タイプ: sample / ID: 1000 / 集合状態: One motor domain to one Lis1 propeller domain / Number unique components: 2
名称: Lis1 / タイプ: protein_or_peptide / ID: 2 / Name.synonym: Pac1 / 詳細: Only a single copy of Lis1 is resolved in the map. / コピー数: 2 / 集合状態: Dimer / 組換発現: Yes
pH: 8 詳細: 50 mM Tris-HCl, 150 mM potassium acetate, 2 mM magnesium acetate, 1 mM EGTA, 1 mM DTT, 0.14 U/ml apyrase
染色
タイプ: NEGATIVE 詳細: Grids with adsorbed protein were floated on 2% w/v uranyl formate, then sandwiched with a thin layer of carbon, blotted, and frozen in liquid nitrogen.
グリッド
詳細: 200 mesh C-flat grid with thin carbon support
凍結
凍結剤: NITROGEN / 装置: OTHER 手法: Manually blot, wait 10-20 seconds, then manually plunge into liquid nitrogen.