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基本情報
登録情報 | データベース: PDB / ID: 2kif | ||||||
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タイトル | Solution NMR structure of an O6-methylguanine DNA methyltransferase family protein from Vibrio parahaemolyticus. Northeast Structural Genomics Consortium target VpR247. | ||||||
![]() | O6-methylguanine-DNA methyltransferase | ||||||
![]() | TRANSFERASE / Methods Development / solution NMR structure / DNA base repair / O6 methylguanine methyltransferase / NESG / PSI-2 / Methyltransferase / Structural Genomics / Protein Structure Initiative / Northeast Structural Genomics Consortium | ||||||
機能・相同性 | ![]() | ||||||
生物種 | ![]() | ||||||
手法 | 溶液NMR / simulated annealing | ||||||
Model details | lowest energy, model 1 | ||||||
![]() | Aramini, J.M. / Belote, R.L. / Ciccosanti, C.T. / Jiang, M. / Rost, B. / Nair, R. / Swapna, G.V.T. / Acton, T.B. / Xiao, R. / Everett, J.K. ...Aramini, J.M. / Belote, R.L. / Ciccosanti, C.T. / Jiang, M. / Rost, B. / Nair, R. / Swapna, G.V.T. / Acton, T.B. / Xiao, R. / Everett, J.K. / Montelione, G.T. / Northeast Structural Genomics Consortium (NESG) | ||||||
![]() | ![]() タイトル: Structural basis of O6-alkylguanine recognition by a bacterial alkyltransferase-like DNA repair protein. 著者: Aramini, J.M. / Tubbs, J.L. / Kanugula, S. / Rossi, P. / Ertekin, A. / Maglaqui, M. / Hamilton, K. / Ciccosanti, C.T. / Jiang, M. / Xiao, R. / Soong, T.T. / Rost, B. / Acton, T.B. / Everett, ...著者: Aramini, J.M. / Tubbs, J.L. / Kanugula, S. / Rossi, P. / Ertekin, A. / Maglaqui, M. / Hamilton, K. / Ciccosanti, C.T. / Jiang, M. / Xiao, R. / Soong, T.T. / Rost, B. / Acton, T.B. / Everett, J.K. / Pegg, A.E. / Tainer, J.A. / Montelione, G.T. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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-検証レポート
文書・要旨 | ![]() | 338 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 439.2 KB | 表示 | |
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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: 12341.314 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: A79_1377, VP0951 / プラスミド: VpR247-21.9 / 発現宿主: ![]() ![]() |
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-実験情報
-実験
実験 | 手法: 溶液NMR 詳細: Structure solved with Bruker 800 MHz NOESY data on a 5-mm cyroprobe | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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NMR実験 |
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NMR実験の詳細 | Text: THE PROTEIN IS MONOMERIC BY GEL FILTRATION CHROMATOGRAPHY, STATIC LIGHT SCATTERING AND 15N T1/T2 RELAXATION. THE STRUCTURE WAS DETERMINED USING TRIPLE RESONANCE NMR SPECTROSCOPY. SPECTRA FOR ...Text: THE PROTEIN IS MONOMERIC BY GEL FILTRATION CHROMATOGRAPHY, STATIC LIGHT SCATTERING AND 15N T1/T2 RELAXATION. THE STRUCTURE WAS DETERMINED USING TRIPLE RESONANCE NMR SPECTROSCOPY. SPECTRA FOR BACKBONE AND SIDE CHAIN ASSIGNMENTS WERE OBTAINED ON A 1.7-MM MICROCRYOPROBE AT 600 MHZ. ALL NOESY DATA WERE ACQUIRED AT 800 MHZ USING A 5-MM CROYOPROBE. BACKBONE ASSIGNMENTS WERE MADE USING AUTOASSIGN AND PINE, AND THE SIDE CHAIN ASSIGNMENTS WERE COMPLETED MANUALLY. AUTOMATIC NOESY ASSIGNMENTS WERE DETERMINED USING CYANA 3.0. BACKBONE (PHI/PSI) DIHEDRAL ANGLE CONSTRAINTS WERE OBTAINED FROM TALOS. HYDROGEN BOND CONSTRAINTS WERE DETERMINED USING BOTH AUTOSTRUCTURE AND CYANA, AND WERE APPLIED ONLY IN THE FINAL REFINEMENT STAGE (CNS) OF THE STRUCTURE DETERMINATION. ROTAMER STATES OF SPECIFIC ORDERED RESIDUES WERE CONSTRAINED IN THE FINAL STAGE OF THE STRUCTURE REFINEMENT BASED ON PROCHECK AND MOLPROBITY. COMPLETENESS OF NMR ASSIGNMENTS (EXCLUDING C-TERMINAL HHHHHH): BACKBONE, 97.6%, SIDE CHAIN, 98.3%, AROMATICS, 100%, STEREOSPECIFIC METHYL, 100%, STEREOSPECIFIC SIDE CHAIN NH2: 100%. FINAL STRUCTURE QUALITY FACTORS (FOR RESIDUES 1 TO 102, PSVS 1.3), WHERE ORDERED RESIDUES [S(PHI) + S(PSI) > 1.8] COMPRISE: 2-32,35-47,50-100: (A) RMSD (ORDERED RESIDUES): BB, 0.5, HEAVY ATOM, 0.8. (B) RAMACHANDRAN STATISTICS FOR ORDERED RESIDUES: MOST FAVORED, 91.5%, ADDITIONALLY ALLOWED, 8.5%, GENEROUSLY ALLOWED, 0.0%, DISALLOWED, 0.0%. (C) PROCHECK SCORES FOR ORDERED RESIDUES (RAW/Z-): PHI-PSI, -0.13/-0.20, ALL, -0.02/-0.12. (D) MOLPROBITY CLASH SCORE (RAW/Z-): 18.92/-1.72 (E) RPF SCORES FOR GOODNESS OF FIT TO NOESY DATA (RESIDUES 1-102): RECALL, 0.974, PRECISION, 0.937, F-MEASURE, 0.955, DP-SCORE, 0.835. (F) NUMBER OF CLOSE CONTACTS PER 20 MODELS: 6. THE C-TERMINAL HIS TAG RESIDUES OF THE PROTEIN (HHHHHH) WERE NOT INCLUDED IN THE STRUCTURE CALCULATIONS AND HAVE BEEN OMITTED FROM THIS DEPOSITION. COORDINATES FOR THE FOLLOWING RESIDUES ARE NOT WELL DETERMINED [S(PHI) + S(PSI) < 1.8]: 1,33-34,48-49,101-102. |
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試料調製
詳細 |
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試料 |
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試料状態 | イオン強度: 0.2 / pH: 6.5 / 圧: ambient / 温度: 298 K |
-NMR測定
NMRスペクトロメーター |
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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: THE FINAL STRUCTURES ARE BASED ON A TOTAL OF 2448 CONFORMATIONALLY-RESTRICTING NOE-DERIVED DISTANCE CONSTRAINTS, 125 DIHEDRAL ANGLE CONSTRAINTS, AND 62 HYDROGEN BOND CONSTRAINTS (26.1 ...詳細: THE FINAL STRUCTURES ARE BASED ON A TOTAL OF 2448 CONFORMATIONALLY-RESTRICTING NOE-DERIVED DISTANCE CONSTRAINTS, 125 DIHEDRAL ANGLE CONSTRAINTS, AND 62 HYDROGEN BOND CONSTRAINTS (26.1 CONSTRAINTS PER RESIDUE, 7.9 LONG RANGE CONSTRAINTS PER RESIDUE, COMPUTED FOR RESIDUES 1 TO 102 BY PSVS 1.3). STRUCTURE DETERMINATION WAS PERFORMED ITERATIVELY USING CYANA 3.0. THE 20 STRUCTURES OUT OF 100 WITH THE LOWEST TARGET FUNCTION WERE FURTHER REFINED BY RESTRAINED MOLECULAR DYNAMICS/ENERGY MINIMIZATION IN EXPLICIT WATER (CNS) WITH PARAM19, AND USING NEUTRAL HISTIDINE TAUTOMERS (NE2H FORM) AT POSITIONS 13 AND 38. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
NMR constraints | NOE constraints total: 2448 / NOE intraresidue total count: 621 / NOE long range total count: 787 / NOE medium range total count: 493 / NOE sequential total count: 547 / Hydrogen bond constraints total count: 62 / Protein chi angle constraints total count: 5 / Protein other angle constraints total count: 11 / Protein phi angle constraints total count: 54 / Protein psi angle constraints total count: 55 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
代表構造 | 選択基準: lowest energy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
NMRアンサンブル | コンフォーマー選択の基準: structures with the lowest energy 計算したコンフォーマーの数: 100 / 登録したコンフォーマーの数: 20 / Maximum torsion angle constraint violation: 4.6 ° / Maximum upper distance constraint violation: 0.31 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
NMR ensemble rms | Distance rms dev: 0.01 Å |