- PDB-2g42: Crystal structure of a putative nucleic acid binding protein (tm0... -
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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: 2g42
タイトル
Crystal structure of a putative nucleic acid binding protein (tm0693) from thermotoga maritima at 2.28 A resolution
要素
hypothetical protein TM_0693
キーワード
GENE REGULATION / Structural genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-2
機能・相同性
Single alpha-helices involved in coiled-coils or other helix-helix interfaces - #50 / TM0693-like superfamily / Single alpha-helices involved in coiled-coils or other helix-helix interfaces / Helix non-globular / Special / metal ion binding / Flagellar protein FliT
BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 2 CHAIN(S) ...BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 2 CHAIN(S). SEE REMARK 350 FOR INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). SIZE EXCLUSION CHROMATOGRAPHY DATA SUPPORTS THE ASSIGNMENT OF A DIMER AS A BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE.
Remark 999
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.
マシュー密度: 2.18 Å3/Da / 溶媒含有率: 43.23 % 解説: AFTER THE INITIAL TRACE, A MODEL OF TM0693 IN A DIFFERENT CELL (PDB ENTRY 2FZT) WAS USED TO FACILITATE COMPLETION OF THE MODEL.
結晶化
温度: 277 K 手法: 蒸気拡散法, シッティングドロップ法, nanodrop pH: 5.1 詳細: 0.2M CaCl2, 20.0% PEG-3350, No Buffer, pH 5.1, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 277K
プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray
放射波長
波長: 0.9796 Å / 相対比: 1
反射
解像度: 2.28→40.859 Å / Num. obs: 7150 / % possible obs: 94.9 % / 冗長度: 6.777 % / Biso Wilson estimate: 42.374 Å2 / Rmerge(I) obs: 0.091 / Net I/σ(I): 12.72
反射 シェル
Diffraction-ID: 1
解像度 (Å)
最高解像度 (Å)
冗長度 (%)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured obs
Num. unique obs
% possible all
2.28-2.35
3.398
0.475
2.73
1334
385
66.4
2.35-2.44
0.452
4
3610
630
84.8
2.44-2.56
0.392
5
4814
742
94.4
2.56-2.69
0.324
6.4
5000
689
95.4
2.69-2.86
0.219
9.1
5461
734
97.1
2.86-3.08
0.158
11.6
5532
742
97.9
3.08-3.39
0.104
16.4
5523
746
98.5
3.39-3.87
0.073
21.3
5401
740
98.4
3.87
0.055
25.8
5557
766
98.7
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位相決定
位相決定
手法: 単波長異常分散
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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
XSCALE
データスケーリング
PDB_EXTRACT
1.701
データ抽出
XDS
データ削減
SOLVE
位相決定
精密化
構造決定の手法: 単波長異常分散 / 解像度: 2.28→40.8 Å / Cor.coef. Fo:Fc: 0.947 / Cor.coef. Fo:Fc free: 0.914 / SU B: 17.565 / SU ML: 0.22 / TLS residual ADP flag: LIKELY RESIDUAL / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R: 0.438 / ESU R Free: 0.26 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 TO ACCOUNT FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION.
Rfactor
反射数
%反射
Selection details
Rfree
0.251
330
4.6 %
RANDOM
Rwork
0.203
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obs
0.206
7134
94.84 %
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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