- PDB-3hoi: Crystal structure of FMN-dependent nitroreductase BF3017 from Bac... -
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基本情報
登録情報
データベース: PDB / ID: 3hoi
タイトル
Crystal structure of FMN-dependent nitroreductase BF3017 from Bacteroides fragilis NCTC 9343 (YP_212631.1) from Bacteroides fragilis NCTC 9343 at 1.55 A resolution
要素
FMN-dependent nitroreductase BF3017
キーワード
OXIDOREDUCTASE / YP_212631.1 / FMN-dependent nitroreductase BF3017 from Bacteroides fragilis NCTC 9343 / Structural Genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-2
ANALYTICAL SIZE EXCLUSION CHROMATOGRAPHY WITH STATIC LIGHT SCATTERING SUPPORTS THE ASSIGNMENT OF A DIMER AS A SIGNIFICANT OLIGOMERIZATION STATE IN SOLUTION.
THE CONSTRUCT (RESIDUES 20-211) WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG ...THE CONSTRUCT (RESIDUES 20-211) WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY THE TARGET SEQUENCE.
解像度: 1.55→29.514 Å / Num. obs: 31895 / % possible obs: 99.5 % / Observed criterion σ(I): -3 / 冗長度: 13.59 % / Biso Wilson estimate: 20.36 Å2 / Rmerge(I) obs: 0.08 / Net I/σ(I): 15.72
反射 シェル
解像度 (Å)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured obs
Diffraction-ID
% possible all
1.55-1.61
0.016
1.6
45676
1
98.6
1.61-1.67
0.016
2.2
40161
1
99.3
1.67-1.75
0.016
3
45319
1
99.2
1.75-1.84
0.016
4.5
41906
1
99.4
1.84-1.95
0.016
6.9
41720
1
99.4
1.95-2.1
0.016
10.9
43643
1
99.7
2.1-2.31
0.016
16.5
43972
1
99.8
2.31-2.65
0.016
23.2
44744
1
99.9
2.65-3.33
0.016
35.7
43272
1
99.9
3.33-29.5
0.016
51.5
42895
1
99.6
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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
5.2.0019
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: 1.55→29.514 Å / Cor.coef. Fo:Fc: 0.969 / Cor.coef. Fo:Fc free: 0.965 / Occupancy max: 1 / Occupancy min: 0.22 / SU B: 3.148 / SU ML: 0.056 / TLS residual ADP flag: LIKELY RESIDUAL / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R: 0.074 / ESU R Free: 0.074 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 RECORDS CONTAIN 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 RECORDS CONTAIN 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 FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 4. FLAVIN MONONUCLEOTIDE COFACTOR (FMN) AND AN UNKNOWN LIGAND (UNL) ARE MODELED INTO THE PUTATIVE ACTIVE SITE. DURING THE REFINEMENT, THE FMN RESTRAINTS DICTIONARY WAS MODIFIED TO ALLOW BENDING OF THE ISOALLOXAZINE RING ALONG THE N5-N10 VIRTUAL AXIS RESULTING IN AN IMPROVED FIT BETWEEN THE FMN COORDINATES AND ELECTRON DENSITY. 5. SULFATE IONS (SO4), CITRATE ANION (FLC) FROM CRYSTALLIZATION SOLUTION, AND PEG1000 OR PEG200 FRAGMENTS (PEG) FROM EITHER CRYSTALLIZATION OR CRYO SOLUTION ARE MODELED. 6. UNEXPLAINED ELECTRON DENSITY NEAR RESIDUE 185 WAS NOT MODELED.
Rfactor
反射数
%反射
Selection details
Rfree
0.187
1599
5 %
RANDOM
Rwork
0.161
-
-
-
obs
0.162
31746
99.52 %
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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