+データを開く
-基本情報
登録情報 | データベース: SASBDB / ID: SASDAK5 |
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試料 | Myomesin-1 My12-My13
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機能・相同性 | 機能・相同性情報 extraocular skeletal muscle development / striated muscle myosin thick filament / M band / structural constituent of muscle / sarcomere organization / protein kinase A signaling / positive regulation of protein secretion / kinase binding / positive regulation of gene expression / protein homodimerization activity / identical protein binding 類似検索 - 分子機能 |
生物種 | Homo sapiens (ヒト) |
引用 | ジャーナル: EMBO J / 年: 2008 タイトル: Molecular basis of the C-terminal tail-to-tail assembly of the sarcomeric filament protein myomesin. 著者: Nikos Pinotsis / Stephan Lange / Jean-Claude Perriard / Dmitri I Svergun / Matthias Wilmanns / 要旨: Sarcomeric filament proteins display extraordinary properties in terms of protein length and mechanical elasticity, requiring specific anchoring and assembly mechanisms. To establish the molecular ...Sarcomeric filament proteins display extraordinary properties in terms of protein length and mechanical elasticity, requiring specific anchoring and assembly mechanisms. To establish the molecular basis of terminal filament assembly, we have selected the sarcomeric M-band protein myomesin as a prototypic filament model. The crystal structure of the myomesin C-terminus, comprising a tandem array of two immunoglobulin (Ig) domains My12 and My13, reveals a dimeric end-to-end filament of 14.3 nm length. Although the two domains share the same fold, an unexpected rearrangement of one beta-strand reveals how they are evolved into unrelated functions, terminal filament assembly (My13) and filament propagation (My12). The two domains are connected by a six-turn alpha-helix, of which two turns are void of any interactions with other protein parts. Thus, the overall structure of the assembled myomesin C-terminus resembles a three-body beads-on-the-string model with potentially elastic properties. We predict that the found My12-helix-My13 domain topology may provide a structural template for the filament architecture of the entire C-terminal Ig domain array My9-My13 of myomesin. |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-モデル
モデル #121 | タイプ: atomic / ソフトウェア: CRYSOL / カイ2乗値: 2.524921 Omokage検索でこの集合体の類似形状データを探す (詳細) |
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モデル #122 | タイプ: atomic / ソフトウェア: CRYSOL / カイ2乗値: 8.2944 Omokage検索でこの集合体の類似形状データを探す (詳細) |
モデル #123 | タイプ: atomic / ソフトウェア: CRYSOL / カイ2乗値: 64.416676 Omokage検索でこの集合体の類似形状データを探す (詳細) |
-試料
試料 | 名称: Myomesin-1 My12-My13 / Sample MW: 45.88 kDa / 試料濃度: 2.80-7.10 |
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バッファ | 名称: 25 mM Tris/HCl / pH: 7.5 / 組成: NaCl 150.000 mM |
要素 #93 | タイプ: protein / 記述: Myomesin-1 / 分子量: 22.94 / 分子数: 2 / 由来: Homo sapiens / 参照: UniProt: P52179 配列: IALSATDLKI QSTAEGIQLY SFVTYYVEDL KVNWSHNGSA IRYSDRVKTG VTGEQIWLQI NEPTPNDKGK YVMELFDGKT GHQKTVDLSG QAYDEAYAEF QRLKQAAIAE KNRARVLGGL PDVVTIQEGK ALNLTCNVWG DPPPEVSWLK NEKALASDDH CNLKFEAGRT ...配列: IALSATDLKI QSTAEGIQLY SFVTYYVEDL KVNWSHNGSA IRYSDRVKTG VTGEQIWLQI NEPTPNDKGK YVMELFDGKT GHQKTVDLSG QAYDEAYAEF QRLKQAAIAE KNRARVLGGL PDVVTIQEGK ALNLTCNVWG DPPPEVSWLK NEKALASDDH CNLKFEAGRT AYFTINGVST ADSGKYGLVV KNKYGSETSD FTVSVFIPE |
-実験情報
ビーム | 設備名称: DORIS III X33 / 地域: Hamburg / 国: Germany / 線源: X-ray synchrotron | |||||||||||||||||||||
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検出器 | 名称: MAR 345 Image Plate | |||||||||||||||||||||
スキャン | タイトル: Myomesin C-terminus, construct My12-My13 / 測定日: 2005年5月7日 / 単位: 1/nm /
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距離分布関数 P(R) | ソフトウェア P(R): GNOM 4.6 / ポイント数: 478 /
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結果 | D max: 14.5 / カーブのタイプ: merged / Standard: BSA コメント: Use of SAXS to discriminate between different crystallographic dimers of the C-terminal construct of myomesin-1 containing two IG-like domains.
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