+データを開く
-基本情報
登録情報 | データベース: SASBDB / ID: SASDDG9 |
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試料 | The 2:1 complex of Synechocystis disulphide-trapped Fluorescence recovery protein dimer (CC mutant) and orange carotenoid-binding protein-ΔNTE (orange form)
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機能・相同性 | 機能・相同性情報 light absorption / phycobilisome / chloride ion binding / plasma membrane-derived thylakoid membrane / photoreceptor activity 類似検索 - 分子機能 |
生物種 | Synechocystis sp. (strain PCC 6803 / Kazusa) (バクテリア) |
引用 | ジャーナル: Nat Commun / 年: 2018 タイトル: OCP-FRP protein complex topologies suggest a mechanism for controlling high light tolerance in cyanobacteria. 著者: Nikolai N Sluchanko / Yury B Slonimskiy / Evgeny A Shirshin / Marcus Moldenhauer / Thomas Friedrich / Eugene G Maksimov / 要旨: In cyanobacteria, high light photoactivates the orange carotenoid protein (OCP) that binds to antennae complexes, dissipating energy and preventing the destruction of the photosynthetic apparatus. At ...In cyanobacteria, high light photoactivates the orange carotenoid protein (OCP) that binds to antennae complexes, dissipating energy and preventing the destruction of the photosynthetic apparatus. At low light, OCP is efficiently deactivated by a poorly understood action of the dimeric fluorescence recovery protein (FRP). Here, we engineer FRP variants with defined oligomeric states and scrutinize their functional interaction with OCP. Complemented by disulfide trapping and chemical crosslinking, structural analysis in solution reveals the topology of metastable complexes of OCP and the FRP scaffold with different stoichiometries. Unable to tightly bind monomeric FRP, photoactivated OCP recruits dimeric FRP, which subsequently monomerizes giving 1:1 complexes. This could be facilitated by a transient OCP-2FRP-OCP complex formed via the two FRP head domains, significantly improving FRP efficiency at elevated OCP levels. By identifying key molecular interfaces, our findings may inspire the design of optically triggered systems transducing light signals into protein-protein interactions. |
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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 #2149 | タイプ: dummy / ダミー原子の半径: 1.90 A / 対称性: none / カイ2乗値: 1.06 / P-value: 0.590997 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 #2150 | タイプ: dummy / ダミー原子の半径: 1.90 A / 対称性: none / カイ2乗値: 1.023 / P-value: 0.580508 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 #2151 | タイプ: mix / ダミー原子の半径: 1.90 A / カイ2乗値: 0.991 / P-value: 0.102317 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: The 2:1 complex of Synechocystis disulphide-trapped Fluorescence recovery protein dimer (CC mutant) and orange carotenoid-binding protein-ΔNTE (orange form) 試料濃度: 2.41 mg/ml / Entity id: 1175 / 1176 |
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バッファ | 名称: 20 mM Tris 150 mM NaCl 3% glycerol / pH: 7.6 |
要素 #1175 | タイプ: protein / 記述: Fluorescence recovery protein / 分子量: 14.09 / 分子数: 2 / 由来: Synechocystis sp. (strain PCC 6803 / Kazusa) / 参照: UniProt: P74103 配列: MRGSHHHHHH TDPATMLQTA EAPWSQAETQ SAHALFRKAY QRELDGLCAT VQAQASQCTQ IDDLWKLHDF LSAKRHEIDG KYDDRQSVII FVFAQLLKEG LVQAEELTFL AADKQSKIKA LARL |
要素 #1176 | 名称: OCP / タイプ: protein / 記述: Orange carotenoid-binding protein / 分子量: 34.28 / 分子数: 1 / 由来: Synechocystis sp. (strain PCC 6803 / Kazusa) / 参照: UniProt: P74102 配列: MRGSHHHHHH TDPATVPATI ARFSQLNAED QLALIWFAYL EMGKTLTIAA PGAASMQLAE NALKEIQAMG PLQQTQAMCD LANRADTPLC RTYASWSPNI KLGFWYRLGE LMEQGFVAPI PAGYQLSANA NAVLATIQGL ESGQQITVLR NAVVDMGFTA GKDGKRIAEP ...配列: MRGSHHHHHH TDPATVPATI ARFSQLNAED QLALIWFAYL EMGKTLTIAA PGAASMQLAE NALKEIQAMG PLQQTQAMCD LANRADTPLC RTYASWSPNI KLGFWYRLGE LMEQGFVAPI PAGYQLSANA NAVLATIQGL ESGQQITVLR NAVVDMGFTA GKDGKRIAEP VVPPQDTASR TKVSIEGVTN ATVLNYMDNL NANDFDTLIE LFTSDGALQP PFQRPIVGKE NVLRFFREEC QNLKLIPERG VTEPAEDGFT QIKVTGKVQT PWFGGNVGMN IAWRFLLNPE GKIFFVAIDL LASPKELLNF AR |
-実験情報
ビーム | 設備名称: PETRA III EMBL P12 / 地域: Hamburg / 国: Germany / 線源: X-ray synchrotron / 波長: 0.124 Å | |||||||||||||||||||||||||||||||||
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検出器 | 名称: Pilatus 2M | |||||||||||||||||||||||||||||||||
スキャン | タイトル: The 2:1 complex of Synechocystis disulphide-trapped Fluorescence recovery protein dimer (CC mutant) and orange carotenoid-binding protein-ΔNTE (orange form) 測定日: 2017年9月1日 / 保管温度: 20 °C / セル温度: 10 °C / 照射時間: 0.05 sec. / フレーム数: 20 / 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 5.0 / ポイント数: 916 /
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結果 | カーブのタイプ: single_conc /
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