Cytoplasmic dynein 1 heavy chain 1, seryl t-RNA synthetase chimera
Tubulin alpha-1B chain
Tubulin beta-2B chain
キーワード
MOTOR PROTEIN/STRUCTURAL PROTEIN / MOTOR PROTEIN-STRUCTURAL PROTEIN complex
機能・相同性
機能・相同性情報
COPI-independent Golgi-to-ER retrograde traffic / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / COPI-mediated anterograde transport / Aggrephagy / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Resolution of Sister Chromatid Cohesion / cilium movement / RHO GTPases Activate Formins ...COPI-independent Golgi-to-ER retrograde traffic / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / COPI-mediated anterograde transport / Aggrephagy / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Resolution of Sister Chromatid Cohesion / cilium movement / RHO GTPases Activate Formins / Separation of Sister Chromatids / Loss of Nlp from mitotic centrosomes / Recruitment of mitotic centrosome proteins and complexes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / positive regulation of intracellular transport / Regulation of PLK1 Activity at G2/M Transition / regulation of metaphase plate congression / establishment of spindle localization / positive regulation of spindle assembly / MHC class II antigen presentation / dynein complex / positive regulation of axon guidance / P-body assembly / minus-end-directed microtubule motor activity / dynein light intermediate chain binding / cytoplasmic dynein complex / dynein intermediate chain binding / microtubule-based process / cytoplasmic microtubule / Neutrophil degranulation / stress granule assembly / regulation of mitotic spindle organization / cellular response to interleukin-4 / filopodium / structural constituent of cytoskeleton / microtubule cytoskeleton organization / neuron migration / mitotic cell cycle / double-stranded RNA binding / positive regulation of cold-induced thermogenesis / microtubule cytoskeleton / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / microtubule / cilium / protein heterodimerization activity / cell division / GTPase activity / centrosome / ubiquitin protein ligase binding / GTP binding / ATP hydrolysis activity / ATP binding / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能
Dynein heavy chain, AAA 5 extension domain / Dynein heavy chain AAA lid domain / Dynein heavy chain, C-terminal domain / Dynein heavy chain, C-terminal domain, barrel region / Dynein heavy chain C-terminal 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, AAA 5 extension domain / Dynein heavy chain AAA lid domain / Dynein heavy chain, C-terminal domain / Dynein heavy chain, C-terminal domain, barrel region / Dynein heavy chain C-terminal 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 / Tubulin-beta mRNA autoregulation signal. / Alpha tubulin / Beta tubulin, autoregulation binding site / Beta tubulin / Tubulin / Tubulin, C-terminal / Tubulin C-terminal domain / Tubulin, conserved site / Tubulin subunits alpha, beta, and gamma signature. / Tubulin/FtsZ family, C-terminal domain / Tubulin/FtsZ-like, C-terminal domain / Tubulin/FtsZ, C-terminal / Tubulin/FtsZ, 2-layer sandwich domain / Tubulin/FtsZ family, GTPase domain / Tubulin/FtsZ family, GTPase domain / Tubulin/FtsZ, GTPase domain / Tubulin/FtsZ, GTPase 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
ジャーナル: Science / 年: 2012 タイトル: Structural basis for microtubule binding and release by dynein. 著者: W B Redwine / R Hernandez-Lopez / S Zou / J Huang / S L Reck-Peterson / A E Leschziner / 要旨: Cytoplasmic dynein is a microtubule-based motor required for intracellular transport and cell division. Its movement involves coupling cycles of track binding and release with cycles of force- ...Cytoplasmic dynein is a microtubule-based motor required for intracellular transport and cell division. Its movement involves coupling cycles of track binding and release with cycles of force-generating nucleotide hydrolysis. How this is accomplished given the ~25 nanometers separating dynein's track- and nucleotide-binding sites is not understood. Here, we present a subnanometer-resolution structure of dynein's microtubule-binding domain bound to microtubules by cryo-electron microscopy that was used to generate a pseudo-atomic model of the complex with molecular dynamics. We identified large rearrangements triggered by track binding and specific interactions, confirmed by mutagenesis and single-molecule motility assays, which tune dynein's affinity for microtubules. Our results provide a molecular model for how dynein's binding to microtubules is communicated to the rest of the motor.
CHAINS B AND C ARE DERIVED FROM PDB ENTRY 1JFF. AS A RESULT, THE MODELED SEQUENCES ARE FROM SUS ...CHAINS B AND C ARE DERIVED FROM PDB ENTRY 1JFF. AS A RESULT, THE MODELED SEQUENCES ARE FROM SUS SCROFA (UNP P02550 AND P02554, RESPECTIVELY). CHAIN A IS A CHIMERA COMPRISING THE 34 N-TERMINAL RESIDUES OF THERMUS THERMOPHILUS SERYL TRNA SYNTHETASE, THE MICROTUBULE BINDING DOMAIN (UNP RESIDUES 3264-3427) OF MUS MUSCULUS DYNEIN, THE 326 C-TERMINAL RESIDUES OF THERMUS THERMOPHILUS SERYL TRNA SYNTHETASE, AND A C-TERMINAL EXPRESSION TAG (GAAEQKLISEEDLNGLEHHHHHHHH). IN THIS ENTRY, ONLY THE DYNEIN RESIDUES WERE MODELED. THE FULL EXPERIMENTAL SEQUENCE WAS AS FOLLOWS: MVDLKRLRQEPEVFHRAIREKGVALDLEALLAVDKQQEVIADKQMSVKEDLDKVEPAVIEA QNAVKSIKKQHLVEVRSMANPPAAVKLALESICLLLGESTTDWKQIRSIIMRENFIPTIVN FSAEEISDAIREKMKKNYMSNPSYNYEIVNRASLACGPMVKWAIAQLNYADMLKRVEPLRN ELQKLEDDAKDNQQKLEALLLQVPLPPWPGAPVGGEEANREIKRVGGPPEFSFPPLDHVAL MEKNGWWEPRASQDSGSRSYALKGDLASYEEALLRFAADFMARRGFTPADTPSRAREKAFL GTGHFPAYRDQVRAESETDTYTTGTAEVVLNALHSGEILPYEALPLRYAGYAPAFRSEAGS FGKDVRGLMRVHQFHKVEQYVLTEASLEASDRAFQELLENAEEILRLLELPYRLVEVATGD MGPGKWRQVDIEVYLPSEGRYRETHSCSALLDWQARRANLRYRDPEGRVRYAYTLNNTALA TPRILAMLLENHQLQDGRVRVPQALIPYMGKEVLEPGAAEQKLISEEDLNGLEHHHHHHHH
名称: 50 mM Tris HCl, 1 mM MgCl2, 1mM EGTA, 1mM DTT / pH: 8 / 詳細: 50 mM Tris HCl, 1 mM MgCl2, 1mM EGTA, 1mM DTT
試料
濃度: 4 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES
試料支持
詳細: C-flat 2/2-2C holey carbon grids (Protochips) were glow-discharged for 20 seconds at 30 mA in an Edwards carbon evaporator.
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: 295 K 詳細: The solution was blotted manually, and the process of addition and blotting of SRS-MTBD was repeated a total of three times. The final blotting was done inside the humidity chamber of a ...詳細: The solution was blotted manually, and the process of addition and blotting of SRS-MTBD was repeated a total of three times. The final blotting was done inside the humidity chamber of a Vitrobot Mark IV (FEI) at 22 Celsius.
モード: BRIGHT FIELD / 倍率(公称値): 62000 X / 倍率(補正後): 63377 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 500 nm / Cs: 2.2 mm
試料ホルダ
温度: 100 K
撮影
電子線照射量: 15 e/Å2 / フィルム・検出器のモデル: KODAK SO-163 FILM
画像スキャン
デジタル画像の数: 225
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解析
EMソフトウェア
ID
名称
カテゴリ
1
NAMD
モデルフィッティング
2
UCSF Chimera
モデルフィッティング
3
FREALIGN
3次元再構成
4
SPIDER
3次元再構成
CTF補正
詳細: phase and amplitude correction using Frealign
らせん対称
回転角度/サブユニット: -25.76 ° / 軸方向距離/サブユニット: 9.26 Å / らせん対称軸の対称性: C1
3次元再構成
手法: Projection matching and back-projection in Fourier space 解像度: 9.7 Å / 粒子像の数: 10419 / ピクセルサイズ(公称値): 1.988 Å / ピクセルサイズ(実測値): 1.988 Å / 倍率補正: TMV images 詳細: Projection matching and Helical symmetry operator during reconstruction 対称性のタイプ: HELICAL
原子モデル構築
ID
プロトコル
空間
Target criteria
詳細
1
RIGIDBODYFIT
REAL
Moleculardynamicsforcefield
METHOD--Molecular dynamics equilibration REFINEMENT PROTOCOL--Rigid body DETAILS--explicit solvent molecular dynamics