- PDB-2q02: Crystal structure of a xylose isomerase domain containing protein... -
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基本情報
登録情報
データベース: PDB / ID: 2q02
タイトル
Crystal structure of a xylose isomerase domain containing protein (stm4435) from salmonella typhimurium lt2 at 2.40 A resolution
要素
Putative cytoplasmic protein
キーワード
UNKNOWN FUNCTION / Putative cytoplasmic protein / structural genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-2
機能・相同性
機能・相同性情報
isomerase activity / metal ion binding 類似検索 - 分子機能
Uncharacterised conserved protein UCP036778, sugar epimerase-type / : / Divalent-metal-dependent TIM barrel enzymes / Xylose isomerase-like, TIM barrel domain / Xylose isomerase-like TIM barrel / Xylose isomerase-like superfamily / TIM Barrel / Alpha-Beta Barrel / Alpha Beta 類似検索 - ドメイン・相同性
SEQUENCE THE CONSTRUCT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS ... SEQUENCE 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.
モノクロメーター: Single crystal Si(111) bent (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
0.91162
1
2
0.97922
1
3
0.97894
1
反射
解像度: 2.4→29.386 Å / Num. obs: 48661 / % possible obs: 98.5 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 44.32 Å2 / Rmerge(I) obs: 0.057 / Net I/σ(I): 9.83
反射 シェル
Diffraction-ID: 1
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
2.4-2.49
0.322
2.4
15045
9080
92.4
2.49-2.58
0.283
2.8
14220
8428
99.8
2.58-2.7
0.237
3.6
15493
9522
98.8
2.7-2.84
0.188
4.3
15623
9202
99.8
2.84-3.02
0.137
5.8
16352
9539
99.8
3.02-3.25
0.102
7.8
15959
9264
99.7
3.25-3.58
0.069
11.2
15666
9398
99.1
3.58-4.09
0.048
15.9
14889
9176
98.3
4.09-5.14
0.033
20.8
16275
9354
99.7
5.14
0.025
23
16814
9424
98.4
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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
REFMAC
5.2.0005
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
データ抽出
MAR345
CCD
データ収集
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: 2.4→29.386 Å / Cor.coef. Fo:Fc: 0.956 / Cor.coef. Fo:Fc free: 0.943 / SU B: 17.462 / SU ML: 0.206 / TLS residual ADP flag: LIKELY RESIDUAL / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R: 0.407 / ESU R Free: 0.244 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. 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. DATA HAS PARTIAL-MEROHEDRAL TWINNING, WITH TWIN OPERATOR -K,-H,-L AND AN APPARENT TWIN FRACTION OF 10%. DATA WAS NOT DETWINNED DURING REFINEMENT. 5. THE R-FREE SET WAS GENERATED USING THE TWIN LAWS. 6. ZINC WAS MODELED BASED ON GEOMETRY AND COORDINATION ENVIRONMENT, AND CONFIRMED WITH X-RAY FLUORESCENCE AND ANOMALOUS DIFFERENCE FOURIER EXPERIMENTS. 7. CHLORINE ATOMS WERE MODELED BASED ON CRYSTALLIZATION CONDITIONS. 8. UNKNOWN LIGANDS (UNL) WERE MODELED BASED ON LOCATION OF PROPOSED ACTIVE SITE. 9. THERE IS AN UNMODELED DIFFERENCE DENSITY NEAR ARG A148.
Rfactor
反射数
%反射
Selection details
Rfree
0.228
2435
5 %
RANDOM
Rwork
0.184
-
-
-
obs
0.186
48605
99.3 %
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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