+データを開く
-基本情報
登録情報 | データベース: SASBDB / ID: SASDAJ8 |
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試料 | Light state solution structure of Aureochrome1a- A´α-LOV-Jα
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生物種 | Phaeodactylum tricornutum (海洋性珪藻) |
引用 | ジャーナル: Structure / 年: 2016 タイトル: Structure of a Native-like Aureochrome 1a LOV Domain Dimer from Phaeodactylum tricornutum. 著者: Ankan Banerjee / Elena Herman / Tilman Kottke / Lars-Oliver Essen / 要旨: Light-oxygen-voltage (LOV) domains absorb blue light for mediating various biological responses in all three domains of life. Aureochromes from stramenopile algae represent a subfamily of ...Light-oxygen-voltage (LOV) domains absorb blue light for mediating various biological responses in all three domains of life. Aureochromes from stramenopile algae represent a subfamily of photoreceptors that differs by its inversed topology with a C-terminal LOV sensor and an N-terminal effector (basic region leucine zipper, bZIP) domain. We crystallized the LOV domain including its flanking helices, A'α and Jα, of aureochrome 1a from Phaeodactylum tricornutum in the dark state and solved the structure at 2.8 Å resolution. Both flanking helices contribute to the interface of the native-like dimer. Small-angle X-ray scattering shows light-induced conformational changes limited to the dimeric envelope as well as increased flexibility in the lit state for the flanking helices. These rearrangements are considered to be crucial for the formation of the light-activated dimer. Finally, the LOV domain of the class 2 aureochrome PtAUREO2 was shown to lack a chromophore because of steric hindrance caused by M301. |
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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 #323 | タイプ: dummy / ソフトウェア: DAMMIF / ダミー原子の半径: 3.25 A コメント: The model is an averaged and volume corrected representation (DAMFILT) カイ2乗値: 0.656 / P-value: 0.000005 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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-試料
試料 | 名称: Light state solution structure of Aureochrome1a- A´α-LOV-Jα 試料濃度: 0.75-15.00 |
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バッファ | 名称: Tris / 濃度: 10.00 mM / pH: 8 / 組成: 300 mM NaCl |
要素 #191 | 名称: Aureochrome1a-A / タイプ: protein / 記述: Aureochrome1a-A´α-LOV-Jα / 分子量: 17.973 / 分子数: 2 / 由来: Phaeodactylum tricornutum 配列: MGSSHHHHHH SSGLVPRGSH MDFSFIKALQ TAQQNFVVTD PSLPDNPIVY ASQGFLNLTG YSLDQILGRN CRFLQGPETD PKAVERIRKA IEQGNDMSVC LLNYRVDGTT FWNQFFIAAL RDAGGNVTNF VGVQCKVSDQ YAATVTKQQE EEEEAAANDD ED |
-実験情報
ビーム | 設備名称: ESRF BM29 / 地域: Grenoble / 国: France / 線源: X-ray synchrotron / 波長: 0.93 Å / スペクトロメータ・検出器間距離: 2.43 mm | |||||||||||||||||||||||||||
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検出器 | 名称: Pilatus 1M | |||||||||||||||||||||||||||
スキャン | タイトル: Light state: Aureochrome1a- A´α-LOV-Jα / 測定日: 2015年3月16日 / 保管温度: 4 °C / 照射時間: 20 sec. / フレーム数: 10 / 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: 539 /
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結果 | カーブのタイプ: merged コメント: Solution scattering data of Aureochrome1a- A´α-LOV-Jα in the light state (blue light illuminated for 5-10 min). The measurement was performed at two concentration 42 and 833 ...コメント: Solution scattering data of Aureochrome1a- A´α-LOV-Jα in the light state (blue light illuminated for 5-10 min). The measurement was performed at two concentration 42 and 833 micomolar concentration. The buffer-only scattering was subtracted and the data sets were merged to generate representative curve. The analysis was performed using the ATSAS package. The displayed model is an averaged and volume corrected dummy atom representation (DAMFILT). For further sequence information refer to the Joint Genome Institute (JGI) entry JGI-49116.
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