O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE (OMC): CLEAVAGE SITE SUBSTRATE ANALOGUE INHIBITOR GUANOSINE-5'- ...O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE (OMC): CLEAVAGE SITE SUBSTRATE ANALOGUE INHIBITOR GUANOSINE-5'-DIPHOSPHATE (GDP): 5 PRIME END OF TRANSCRIBED SEQUENCE. 5-BROMO-URIDINE-5'-MONOPHOSPHATE (5BU): USED FOR MAD PHASING
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実験情報
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実験
実験
手法: X線回折 / 使用した結晶の数: 1
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試料調製
結晶
マシュー密度: 2.36 Å3/Da / 溶媒含有率: 47.78 % / 解説: ALL VALUES SAME AS 2GOZ
結晶化
温度: 301 K / 手法: 蒸気拡散法, ハンギングドロップ法 詳細: THE ENZYME AND SUBSTRATE WERE MIXED IN EQUIMOLAR AMOUNTS IN A SOLUTION CONTAINING 50 MM MES PH 5.5, 1.5 MM EDTA. THE COMPLEX WAS FORMED BY INCUBATING THE MIXTURE AT 95C FOR 2 MIN., THEN AT ...詳細: THE ENZYME AND SUBSTRATE WERE MIXED IN EQUIMOLAR AMOUNTS IN A SOLUTION CONTAINING 50 MM MES PH 5.5, 1.5 MM EDTA. THE COMPLEX WAS FORMED BY INCUBATING THE MIXTURE AT 95C FOR 2 MIN., THEN AT 65C FOR 2 MIN., AND FINALLY AT 27C FOR 5 MIN. 1 MM MGCL2 WAS INCLUDED IN THE MIXTURE BEFORE THE FINAL INCUBATION STEP. A 10 MG/ML CONCENTRATION OF RNA WAS USED FOR THE CRYSTALLIZATION EXPERIMENTS. THE RESERVOIR SOLUTION CONTAINED 0.5M (NH4)2SO4, 100 MM MES PH 6.5, AND 35% PEG 3350. AFTER MIXING THE RESERVOIR SOLUTION, THE SALT AND PEG PHASES WERE ALLOWED TO SEPARATE, AND ONLY THE SALT PHASE WAS USED FOR THE DROPS. THE CRYSTALS GREW IN HANGING DROPS OF 2 MICROLITERS AFTER 12 MONTHS OF INCUBATION AT 28C. THE CRYSTALS WERE WASHED IN THE SALT PHASE OF THE RESERVOIR SOLUTION PRIOR TO CRYO-FREEZING.
プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray
放射波長
ID
波長 (Å)
相対比
1
0.919
1
2
0.92
1
3
0.9266
1
反射
解像度: 2.2→55.73 Å / Num. obs: 9712 / % possible obs: 99.2 % / Observed criterion σ(I): 0 / 冗長度: 4 % / Biso Wilson estimate: 43.18 Å2 / Rmerge(I) obs: 0.04 / Net I/σ(I): 16.9
反射 シェル
解像度: 2.2→2.32 Å / 冗長度: 4.1 % / Rmerge(I) obs: 0.22 / Mean I/σ(I) obs: 4.9 / % possible all: 100
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解析
ソフトウェア
名称
バージョン
分類
PHENIX
(PHENIX.REFINE)
精密化
ADSC
データ削減
MOSFLM
データスケーリング
CNS
位相決定
精密化
構造決定の手法: 多波長異常分散 / 解像度: 2.2→20.22 Å / SU ML: 0.27 / σ(F): 1.5 / 位相誤差: 25.51 / 立体化学のターゲット値: ML 詳細: TLS MODEL BASED ON OUTPUT FROM TLS MOTION DETERMINATION SERVER. TO REPLACE 2GOZ COORDINATES (DATA REMAIN THE SAME). CORRECTED ANTI TO SYN BASE CONFORMATION OF C8 IN CHAIN A. IMPROVED TLS AND WATER MODELS
Rfactor
反射数
%反射
Rfree
0.2117
935
9.7 %
Rwork
0.1768
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obs
0.1805
9615
99.13 %
溶媒の処理
減衰半径: 0.9 Å / VDWプローブ半径: 1.11 Å / 溶媒モデル: FLAT BULK SOLVENT MODEL