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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 2a63 | ||||||
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タイトル | Solution structure of a stably monomeric mutant of lambda Cro produced by substitutions in the ball-and-socket interface | ||||||
![]() | Regulatory protein cro | ||||||
![]() | VIRAL PROTEIN / helix-turn-helix / monomer / ball-and-socket | ||||||
機能・相同性 | ![]() latency-replication decision / release from viral latency / negative regulation of viral transcription / negative regulation of transcription by competitive promoter binding / core promoter sequence-specific DNA binding / response to UV / protein homodimerization activity / DNA binding 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
手法 | 溶液NMR / simulated annealing | ||||||
![]() | Newlove, T. / Atkinson, K.R. / Van Dorn, L.O. / Cordes, M.H. | ||||||
![]() | ![]() タイトル: A Trade between Similar but Nonequivalent Intrasubunit and Intersubunit Contacts in Cro Dimer Evolution. 著者: Newlove, T. / Atkinson, K.R. / Van Dorn, L.O. / Cordes, M.H. | ||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 410.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 344.3 KB | 表示 | ![]() |
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その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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NMR アンサンブル |
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要素
#1: タンパク質 | 分子量: 7423.485 Da / 分子数: 1 / 変異: A33W, F58D, Y26Q / 由来タイプ: 組換発現 由来: (組換発現) ![]() 属: Lambda-like viruses / 遺伝子: cro / プラスミド: pET21b / 生物種 (発現宿主): Escherichia coli / 発現宿主: ![]() ![]() |
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-実験情報
-実験
実験 | 手法: 溶液NMR | ||||||||||||||||||||||||||||||||||||||||
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NMR実験 |
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NMR実験の詳細 | Text: Proton chemical shifts submitted with this deposition were referenced to TSP at 0.00 ppm. However, we should add a cautionary note that this referencing led to an unusually high value for the ...Text: Proton chemical shifts submitted with this deposition were referenced to TSP at 0.00 ppm. However, we should add a cautionary note that this referencing led to an unusually high value for the water signal of 4.966 at 293 K, pH 5.3. We suspect that the TSP resonance is shifted below 0 ppm in our samples, possibly as much as -0.15 ppm. In our view, this is probably due to some transient interaction of the standard with the protein. |
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試料調製
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試料状態 |
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-NMR測定
放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M |
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放射波長 | 相対比: 1 |
NMRスペクトロメーター | タイプ: Bruker DRX / 製造業者: Bruker / モデル: DRX / 磁場強度: 600 MHz |
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解析
NMR software |
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精密化 | 手法: simulated annealing / ソフトェア番号: 1 詳細: 40 structures were calculated using 838 noe-derived restraints, 14 hydrogen bond distance restraints, 50 phi angle restraints and 17 chi1 angle restraints. All 40 calculations converged to ...詳細: 40 structures were calculated using 838 noe-derived restraints, 14 hydrogen bond distance restraints, 50 phi angle restraints and 17 chi1 angle restraints. All 40 calculations converged to structures with no noe violations > 0.5 angstroms and no dihedral angle restraint violations >5 degrees. 14 of the 40 structures were discarded based on incompatibility of the rotamer of val 55 with a small J(HNHB) coupling constant, though no explicit restraint on the chi1 angle was included in the calculation. Of the 26 remaining structures, the 6 with the highest energy were discarded. In addition to having high energies, these 6 structures showed unusual conformations, particularly in turn regions, that were unreasonable and in strong disagreement with previously published structures of lambda Cro variants. The final ensemble contains 20 members. The ordered region of the protein extends from approximately residue 3 to residue 55. Pairwise RMSDs for the ordered region were 0.66 A (backbone atoms) and 1.29 A (all heavy atoms). None of the backbone angles in the ordered region of any ensemble member fell outside the most favorable and additionally allowed regions of a ramachandran plot. | ||||||||||||||||||||||||
代表構造 | 選択基準: closest to the average | ||||||||||||||||||||||||
NMRアンサンブル | コンフォーマー選択の基準: all structures compatible with experimental restraints; structures chosen had the lowest energies and/or best agreement to J(NHB) data not used in explicit restraints 計算したコンフォーマーの数: 40 / 登録したコンフォーマーの数: 20 |