1. THE CONSTRUCT USED FOR REFINEMENT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE ...1. THE CONSTRUCT USED FOR REFINEMENT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY RESIDUES 1-187 OF THE TARGET SEQUENCE. 2. THE CRYSTAL USED FOR SAD PHASING WAS FROM AN N-TERMINAL TRUNCATED CONSTRUCT. THE CONSTRUCT USED THE SAME TEV-CLEAVED TAG FOLLOWED BY RESIDUES 34-187 OF THE TARGET SEQUENCE.
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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: 2
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試料調製
結晶
ID
マシュー密度 (Å3/Da)
溶媒含有率 (%)
解説
1
2.35
47.66
TWO CRYSTALS WERE USED FOR THE SOLUTION OF THIS STRUCTURE. 2.50 ANGSTROM SAD DATA COLLECTED FROM A CRYSTAL IN SPACE GROUP P3121 WERE USED TO PHASE AND TRACE AN INITIAL MODEL. THIS MODEL WAS THEN USED FOR MOLECULAR REPLACEMENT AGAINST A CRYSTAL IN SPACE GROUP P21 THAT DIFFRACTED TO 2.0 ANGSTROMS. REFINEMENT WAS AGAINST THE AMPLITUDES FROM THE P21 CRYSTAL. NOTE THAT THE TWO CRYSTALS ARE FROM SLIGHTLY DIFFERENT PROTEIN CONSTRUCTS. THE P3121 SAD PHASING CRYSTAL IS OF A TRUNCATED CONSTRUCT (RESIDUES 34-187), WHILE THE P21 CRYSTAL USED FOR REFINEMENT WAS FROM THE FULL LENGTH CONSTRUCT, RESIDUES 1-187.
解像度: 2→29.814 Å / Num. obs: 138837 / % possible obs: 84.6 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 21.909 Å2 / Rmerge(I) obs: 0.058 / Net I/σ(I): 7.38
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
2-2.07
0.354
1.6
5368
12737
1,2
41.9
2.07-2.15
0.304
1.9
7970
16660
1,2
55.3
2.15-2.25
0.23
2.5
13005
24091
1,2
75.4
2.25-2.37
0.186
3.3
20920
29732
1,2
94.6
2.37-2.52
0.145
4.2
22565
30167
1,2
95.9
2.52-2.71
0.117
5.2
22541
29400
1,2
96.7
2.71-2.99
0.085
6.9
23833
30736
1,2
96.4
2.99-3.42
0.055
10.3
23314
29912
1,2
97
3.42-4.3
0.037
14.6
23186
29921
1,2
96.8
4.3-29.814
0.028
16.7
23505
29561
1,2
94.6
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位相決定
位相決定
手法: 単波長異常分散, 分子置換
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解析
ソフトウェア
名称
バージョン
分類
NB
REFMAC
5.4.0066
精密化
PHENIX
精密化
MolProbity
3beta29
モデル構築
PDB_EXTRACT
3
データ抽出
MAR345
CCD
データ収集
XDS
データ削減
MOSFLM
データ削減
XSCALE
データスケーリング
SCALA
データスケーリング
SHARP
位相決定
MOLREP
位相決定
精密化
構造決定の手法: 単波長異常分散, 分子置換 / 解像度: 2→29.814 Å / Cor.coef. Fo:Fc: 0.957 / Cor.coef. Fo:Fc free: 0.928 / SU B: 9.244 / SU ML: 0.124 / TLS residual ADP flag: LIKELY RESIDUAL / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R: 0.194 / ESU R Free: 0.175 / 立体化学のターゲット値: MAXIMUM LIKELIHOOD 詳細: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE ...詳細: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. 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 FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 3. ATOM RECORD CONTAINS RESIDUAL B FACTORS ONLY. 4. CHAIN L, PARTICULARLY THE FIRST 60 RESIDUES, IS LOCATED IN WEAK DENSITY. 5. PEG AND CL WERE MODELED BASED ON CRYSTALLIZATION CONDITIONS. 6. RAMACHANDRAN OUTLIERS ARE IN POOR DENSITY.
Rfactor
反射数
%反射
Selection details
Rfree
0.225
6959
5 %
RANDOM
Rwork
0.171
-
-
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obs
0.174
138822
87.53 %
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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: 1.2 Å / 溶媒モデル: MASK