+データを開く
-基本情報
登録情報 | データベース: SASBDB / ID: SASDCH5 |
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試料 | Light encoded DNA biosensor: e13AB DNA
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引用 | ジャーナル: ACS Chem Biol / 年: 2018 タイトル: Optical and Structural Characterization of a Chronic Myeloid Leukemia DNA Biosensor. 著者: Mílton Cordeiro / Ana Rita Otrelo-Cardoso / Dmitri I Svergun / Petr V Konarev / João Carlos Lima / Teresa Santos-Silva / Pedro Viana Baptista / 要旨: Selective base pairing is the foundation of DNA recognition. Here, we elucidate the molecular and structural details of a FRET-based two-component molecular beacon relying on steady-state ...Selective base pairing is the foundation of DNA recognition. Here, we elucidate the molecular and structural details of a FRET-based two-component molecular beacon relying on steady-state fluorescence spectroscopy, small-angle X-ray scattering (SAXS), microscale thermophoresis (MST), and differential electrophoretic mobility. This molecular beacon was designed to detect the most common fusion sequences causing chronic myeloid leukemia, e14a2 and e13a2. The emission spectra indicate that the self-assembly of the different components of the biosensor occurs sequentially, triggered by the fully complementary target. We further assessed the structural alterations leading to the specific fluorescence FRET signature by SAXS, MST, and the differential electrophoretic mobility, where the size range observed is consistent with hybridization and formation of a 1:1:1 complex for the probe in the presence of the complementary target and revelator. These results highlight the importance of different techniques to explore conformational DNA changes in solution and its potential to design and characterize molecular biosensors for genetic disease diagnosis. |
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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 #1337 | タイプ: dummy / ダミー原子の半径: 4.25 A / カイ2乗値: 12.569 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 encoded DNA biosensor: e13AB DNA / 試料濃度: 0.25-2.00 |
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バッファ | 名称: 154 mM NaCl / pH: 8.3 |
要素 #717 | タイプ: DNA / 記述: e13AB / 分子量: 79.448 / 分子数: 1 配列: ccacgccaaa cgctgaaggg cttcttcctt atttttggcg tggccacgcc aaacgctgaa gggcttcttc cttatttttg gcgtggccac gccaaacgct gaagggcttc ttccttattt ttggcgtggc cacgccaaac gctgaagggc ttcttcctta tttttggcgt ...配列: ccacgccaaa cgctgaaggg cttcttcctt atttttggcg tggccacgcc aaacgctgaa gggcttcttc cttatttttg gcgtggccac gccaaacgct gaagggcttc ttccttattt ttggcgtggc cacgccaaac gctgaagggc ttcttcctta tttttggcgt ggccacgcca aacgctgaag ggcttcttcc ttatttttgg cgtggccacg ccaaacgctg aagggcttct tccttatttt tggcgtgg |
-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: 0.1 Å / スペクトロメータ・検出器間距離: 3 mm | ||||||||||||||||||||||||||||||||||||||||||
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検出器 | 名称: Pilatus 1M | ||||||||||||||||||||||||||||||||||||||||||
スキャン | タイトル: Light encoded DNA biosensor: e13AB DNA / 測定日: 2013年11月22日 / 保管温度: 5 °C / セル温度: 5 °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 4.6 / ポイント数: 494 /
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結果 | カーブのタイプ: merged
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