- PDB-4qhz: Crystal structure of a putative glycosyl hydrolase (BDI_3914) fro... -
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IDまたはキーワード:
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基本情報
登録情報
データベース: PDB / ID: 4qhz
タイトル
Crystal structure of a putative glycosyl hydrolase (BDI_3914) from Parabacteroides distasonis ATCC 8503 at 2.13 A resolution
要素
putative glycosyl hydrolase
キーワード
HYDROLASE / PF06439 family protein / DUF1080 / Structural Genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-BIOLOGY
機能・相同性
3-keto-disaccharide hydrolase / 3-keto-disaccharide hydrolase / Exo-inulinase; domain 1 / Jelly Rolls / Sandwich / Mainly Beta / metal ion binding / DUF1080 domain-containing protein
1.THIS CONSTRUCT WAS EXPRESSED WITH AN N-TERMINAL PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS ...1.THIS CONSTRUCT WAS EXPRESSED WITH AN N-TERMINAL PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY RESIDUES 21-265 OF THE TARGET SEQUENCE. 2. THE PROTEIN WAS REDUCTIVELY METHYLATED PRIOR TO CRYSTALLIZATION. ALL LYSINE RESIDUES (EXCEPT RESIDUES 102, 169, AND 197) HAVE BEEN MODELED AS MLY.
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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
マシュー密度: 2.5 Å3/Da / 溶媒含有率: 50.84 % 解説: THE STRUCTURE WAS SOLVED BY THREE WAVELENGTH MAD METHOD AT 2.40A RESOLUTION. THE STRUCTURE WAS REFINED AT 2.13A RESOLUTION AGAINST A DATASET COLLECTED FROM A DIFFERENT CRYSTAL.
解像度: 2.13→48.254 Å / Num. obs: 58318 / % possible obs: 95 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 26.92 Å2 / Rmerge(I) obs: 0.111 / Net I/σ(I): 6.96
反射 シェル
Diffraction-ID: 1,2
解像度 (Å)
最高解像度 (Å)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured obs
Num. unique obs
% possible all
2.13-2.21
0.477
2.1
14623
6159
96.6
2.21-2.29
0.432
2.4
12372
5278
94.2
2.29-2.4
0.355
2.9
14412
6130
95.4
2.4-2.52
0.274
3.6
13800
5679
97.2
2.52-2.68
0.229
4.2
14279
5960
96
2.68-2.89
0.168
5.5
13526
5743
92.7
2.89-3.18
0.119
7.7
14551
5943
96.7
3.18-3.64
0.072
11.4
13932
5769
94.2
3.64-4.57
0.053
14.7
14198
5775
94.8
4.57
0.056
15.1
14117
5820
92.4
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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
MolProbity
3beta29
モデル構築
PDB_EXTRACT
3.1
データ抽出
SOLVE
位相決定
REFMAC
5.7.0032
精密化
XDS
データ削減
XSCALE
データスケーリング
精密化
構造決定の手法: 多波長異常分散 / 解像度: 2.13→48.254 Å / Cor.coef. Fo:Fc: 0.954 / Cor.coef. Fo:Fc free: 0.939 / Occupancy max: 1 / Occupancy min: 0.4 / SU B: 8.623 / SU ML: 0.12 / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R: 0.237 / ESU R Free: 0.176 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 SUM OF TLS AND RESIDUAL B FACTORS. ANISOU RECORD CONTAINS SUM OF TLS AND RESIDUAL U FACTORS. 3. WATERS WERE ...詳細: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. ATOM RECORD CONTAINS SUM OF TLS AND RESIDUAL B FACTORS. ANISOU RECORD CONTAINS SUM OF TLS AND RESIDUAL U FACTORS. 3. WATERS WERE EXCLUDED FROM AUTOMATIC TLS ASSIGNMENT. 4. 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. 5. THE PROTEIN WAS REDUCTIVELY METHYLATED PRIOR RO CRYSTALLIZATION. THEREFORE ALL LYSINE RESIDUES (EXCEPT RESIDUES 102, 169, AND 197) HAVE BEEN MODELED AS MLY. ELECTRON DENSITY SUGGESTS THAT THESE THREE RESIDUES ARE UNMODIFIED. 6. MAGNESIUM (MG) IONS AND 1,2-ETHANEDIOL (EDO) MOLECULES FROM THE CRYSTALLIZATION/CRYOPROTECTION SOLUTION ARE MODELED. 7. THE REFINEMENT WAS RESTRAINED AGAINST THE MAD PHASES FROM A CRYSTAL THAT WAS USED TO OBTAIN THE STRUCTURE SOLUTION.
Rfactor
反射数
%反射
Selection details
Rfree
0.2035
2948
5.1 %
RANDOM
Rwork
0.1707
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obs
0.1724
55339
95.03 %
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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: BABINET MODEL WITH MASK