THE CONSTRUCT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH ...THE CONSTRUCT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY THE TARGET SEQUENCE. THE CLONED CONSTRUCT CONTAINS RESIDUES 27-266 OF THE FULL LENGTH PROTEIN.
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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: 2.55 Å3/Da / 溶媒含有率: 51.83 %
結晶化
温度: 293 K / 手法: 蒸気拡散法, シッティングドロップ法 / pH: 8 詳細: 40.0000% Ethanol, 0.1170M magnesium chloride, 0.1M TRIS pH 8.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 293K
モノクロメーター: Single crystal Si(111) bent monochromator (horizontal focusing) プロトコル: MAD / 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
0.91837
1
2
0.97926
1
3
0.97882
1
反射
解像度: 2.3→49.507 Å / Num. obs: 186629 / % possible obs: 97.3 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 37.716 Å2 / Rmerge(I) obs: 0.114 / Net I/σ(I): 8.64
反射 シェル
解像度 (Å)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured obs
Num. unique obs
Diffraction-ID
% possible all
2.3-2.38
0.663
1.8
56759
16841
1
90.9
2.38-2.48
0.576
2.1
64746
18648
1
94.1
2.48-2.59
0.457
2.8
72272
17852
1
96.6
2.59-2.73
0.361
3.8
92657
19108
1
98.4
2.73-2.9
0.271
5
93542
18597
1
98.5
2.9-3.12
0.199
6.8
96338
18467
1
98.9
3.12-3.43
0.129
10.1
101853
18747
1
98.9
3.43-3.93
0.083
14.9
108507
19120
1
98.7
3.93-4.93
0.064
18.6
114186
18929
1
98.8
4.93-49.507
0.061
18.6
137410
20160
1
99.5
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位相決定
位相決定
手法: 多波長異常分散
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解析
ソフトウェア
名称
バージョン
分類
NB
REFMAC
5.5.0102
精密化
PHENIX
精密化
SHELX
位相決定
MolProbity
3beta29
モデル構築
XSCALE
データスケーリング
PDB_EXTRACT
3.006
データ抽出
XDS
データ削減
SHELXD
位相決定
autoSHARP
位相決定
精密化
構造決定の手法: 多波長異常分散 / 解像度: 2.3→49.507 Å / Cor.coef. Fo:Fc: 0.941 / Cor.coef. Fo:Fc free: 0.923 / Occupancy max: 1 / Occupancy min: 0.33 / SU B: 19.051 / SU ML: 0.208 / TLS residual ADP flag: LIKELY RESIDUAL / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R: 0.411 / ESU R Free: 0.27 立体化学のターゲット値: MAXIMUM LIKELIHOOD WITH PHASES 詳細: 1.HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2.ATOM RECORD CONTAINS RESIDUAL B FACTORS ONLY. 3.A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN ...詳細: 1.HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2.ATOM RECORD CONTAINS RESIDUAL B FACTORS ONLY. 3.A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE MSE RESIDUES WAS REDUCED TO 0.75 TO ACCOUNT FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 4. ANALYSIS OF THE PATTERSON FUNCTION USING XTRIAGE REVEALS A SIGNIFICANT OFF-ORIGIN PEAK THAT IS 63% OF THE ORIGIN PEAK INDICATING PSEUDO TRANSLATION SYMMETRY RELATING PAIRS OF DIMERS IN THE UNIT CELL. 5.ALTHOUGH THERE IS GENERAL AGREEMENT BETWEEN THE ELECTRON DENSITY MAPS AND THE MODEL MAPS, THE REASONS FOR THE ELEVATED R-FACTORS (R-WORK AND R-FREE) ARE NOT COMPLETELY UNDERSTOOD. 6. GLY 168 ON ALL 16 SUBUNITS IN THE ASYMMETRIC UNIT IS FLAGGED AS A MOLPROBITY RAMACHANDRAN OUTLIER EVEN THOUGH IT IS POSITIONED IN WELL DEFINED ELECTRON DENSITY. HIS A96 IS IN A DISORDERED REGION OF ELECTRON DENSITY AND ARE FLAGGED AS A RAMACHANDRAN OUTLIER IN MOLPROBITY.
Rfactor
反射数
%反射
Selection details
Rfree
0.28
9370
5 %
RANDOM
Rwork
0.244
-
-
-
obs
0.246
186512
97.48 %
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溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.4 Å / 溶媒モデル: BABINET MODEL WITH MASK