+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 3j2u | ||||||
---|---|---|---|---|---|---|---|
タイトル | Kinesin-13 KLP10A HD in complex with CS-tubulin and a microtubule | ||||||
要素 |
| ||||||
キーワード | MOTOR PROTEIN / tubulin / kinesin / kinesin-13 / KinI / depolymerase / depolymerization / microtubule / Kinesin13 | ||||||
機能・相同性 | 機能・相同性情報 establishment of mitotic spindle asymmetry / establishment of meiotic spindle orientation / cortical microtubule / plus-end specific microtubule depolymerization / asymmetric protein localization involved in cell fate determination / meiotic spindle pole / mitotic spindle astral microtubule / COPI-dependent Golgi-to-ER retrograde traffic / Kinesins / centriole assembly ...establishment of mitotic spindle asymmetry / establishment of meiotic spindle orientation / cortical microtubule / plus-end specific microtubule depolymerization / asymmetric protein localization involved in cell fate determination / meiotic spindle pole / mitotic spindle astral microtubule / COPI-dependent Golgi-to-ER retrograde traffic / Kinesins / centriole assembly / mitotic chromosome movement towards spindle pole / kinetochore microtubule / meiotic spindle organization / spindle assembly involved in female meiosis I / non-motile cilium assembly / plus-end-directed microtubule motor activity / meiotic spindle / positive regulation of axon guidance / microtubule depolymerization / microtubule motor activity / spindle organization / kinesin complex / microtubule-based movement / mitotic spindle pole / cytoskeletal motor activity / centrosome duplication / microtubule-based process / chromosome, centromeric region / mitotic spindle organization / structural constituent of cytoskeleton / spindle pole / microtubule cytoskeleton organization / spindle / microtubule cytoskeleton / mitotic cell cycle / nervous system development / 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 binding / microtubule / protein heterodimerization activity / cell division / GTPase activity / centrosome / GTP binding / ATP hydrolysis activity / ATP binding / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | Drosophila melanogaster (キイロショウジョウバエ) Bos taurus (ウシ) | ||||||
手法 | 電子顕微鏡法 / らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 10.8 Å | ||||||
データ登録者 | Asenjo, A.B. / Chatterjee, C. / Tan, D. / DePaoli, V. / Rice, W.J. / Diaz-Avalos, R. / Silvestry, M. / Sosa, H. | ||||||
引用 | ジャーナル: Cell Rep / 年: 2013 タイトル: Structural model for tubulin recognition and deformation by kinesin-13 microtubule depolymerases. 著者: Ana B Asenjo / Chandrima Chatterjee / Dongyan Tan / Vania DePaoli / William J Rice / Ruben Diaz-Avalos / Mariena Silvestry / Hernando Sosa / 要旨: To elucidate the structural basis of the mechanism of microtubule depolymerization by kinesin-13s, we analyzed complexes of tubulin and the Drosophila melanogaster kinesin-13 KLP10A by electron ...To elucidate the structural basis of the mechanism of microtubule depolymerization by kinesin-13s, we analyzed complexes of tubulin and the Drosophila melanogaster kinesin-13 KLP10A by electron microscopy (EM) and fluorescence polarization microscopy. We report a nanometer-resolution (1.1 nm) cryo-EM three-dimensional structure of the KLP10A head domain (KLP10AHD) bound to curved tubulin. We found that binding of KLP10AHD induces a distinct tubulin configuration with displacement (shear) between tubulin subunits in addition to curvature. In this configuration, the kinesin-binding site differs from that in straight tubulin, providing an explanation for the distinct interaction modes of kinesin-13s with the microtubule lattice or its ends. The KLP10AHD-tubulin interface comprises three areas of interaction, suggesting a crossbow-type tubulin-bending mechanism. These areas include the kinesin-13 family conserved KVD residues, and as predicted from the crossbow model, mutating these residues changes the orientation and mobility of KLP10AHDs interacting with the microtubule. | ||||||
履歴 |
|
-構造の表示
ムービー |
ムービービューア |
---|---|
構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 3j2u.cif.gz | 393 KB | 表示 | PDBx/mmCIF形式 |
---|---|---|---|---|
PDB形式 | pdb3j2u.ent.gz | 312.8 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 3j2u.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 3j2u_validation.pdf.gz | 818.7 KB | 表示 | wwPDB検証レポート |
---|---|---|---|---|
文書・詳細版 | 3j2u_full_validation.pdf.gz | 1 MB | 表示 | |
XML形式データ | 3j2u_validation.xml.gz | 84.1 KB | 表示 | |
CIF形式データ | 3j2u_validation.cif.gz | 122.2 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/j2/3j2u ftp://data.pdbj.org/pub/pdb/validation_reports/j2/3j2u | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
|
---|---|
1 |
| x 42
2 |
|
3 |
|
対称性 | らせん対称: (回転対称性: 1 / Dyad axis: no / N subunits divisor: 1 / Num. of operations: 42 / Rise per n subunits: 5.553 Å / Rotation per n subunits: 168.087 °) |
-要素
#1: タンパク質 | 分子量: 41810.918 Da / 分子数: 1 / 断片: head domain (UNP residues 279-615) / 由来タイプ: 組換発現 由来: (組換発現) Drosophila melanogaster (キイロショウジョウバエ) 遺伝子: Klp10A, CG1453 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: Q960Z0 | ||
---|---|---|---|
#2: タンパク質 | 分子量: 50107.238 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 器官: brain / 参照: UniProt: P81947 #3: タンパク質 | 分子量: 49907.770 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 器官: brain / 参照: UniProt: Q6B856 |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
EM実験 | 試料の集合状態: FILAMENT / 3次元再構成法: らせん対称体再構成法 |
-試料調製
構成要素 | 名称: kinesin-13 KLP10A head domain in complex with CS-tubulin and a microtubule タイプ: COMPLEX |
---|---|
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 装置: FEI VITROBOT MARK I / 凍結剤: ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Tecnai F20 / 画像提供: FEI Company | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
EM imaging | 日付: 2012年5月1日 / 電子線源: FIELD EMISSION GUN / 照射モード: FLOOD BEAM / モード: BRIGHT FIELD / Specimen-ID: 1
|
-解析
EMソフトウェア |
| ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF補正 | 詳細: each particle | ||||||||||||||||||||||||
らせん対称 | 回転角度/サブユニット: 168.087 ° / 軸方向距離/サブユニット: 5.553 Å / らせん対称軸の対称性: C1 | ||||||||||||||||||||||||
3次元再構成 | 解像度: 10.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 54584 / ピクセルサイズ(公称値): 2 Å / ピクセルサイズ(実測値): 2 Å / Refinement type: HALF-MAPS REFINED INDEPENDENTLY / 対称性のタイプ: HELICAL | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL 詳細: REFINEMENT PROTOCOL--RIGID BODY DETAILS--The domains were separately fitted with the global fitting option of the routine fitmap within UCSF-Chimera. Best fit was chosen based on the maximum ...詳細: REFINEMENT PROTOCOL--RIGID BODY DETAILS--The domains were separately fitted with the global fitting option of the routine fitmap within UCSF-Chimera. Best fit was chosen based on the maximum cross-correlation value between the EM density and an 11 A resolution density model of the atomic structure of the domain to be fitted. | ||||||||||||||||||||||||
原子モデル構築 | 3D fitting-ID: 1 / Accession code: 1JFF / Initial refinement model-ID: 1 / PDB-ID: 1JFF / Source name: PDB / タイプ: experimental model
| ||||||||||||||||||||||||
精密化ステップ | サイクル: LAST
|