THE ASYMMETRIC UNIT CONSISTS OF THREE HU MONOMERS ARRANGED AROUND THREE OF THE FOUR TWOFOLD AXES IN THE P2 SPACE GROUP. BIOLOGICALLY RELEVANT DIMERS ARE GENERATED BY THE SYMMETRY OPERATIONS OF THE UNIT CELL. THE SOLVENT MOLECULES ARE LABELED ACCORDING TO THE MONOMER WITH WHICH THEY ASSOCIATE. WATER MOLECULES 100 THROUGH 135 ARE COMMON TO ALL THREE MOLECULES IN THE ASYMMETRIC UNIT AND CAN BE CONSIDERED STRUCTURAL. WATER MOLECULES 200 AND HIGHER ARE NOT COMMON TO ALL THREE MOLECULES.
PROTEIN HU BINDS DNA NON-SPECIFICALLY AND INTRODUCES SHARP BENDS. THE PROTEIN APPEARS TO INDUCE DNA ...PROTEIN HU BINDS DNA NON-SPECIFICALLY AND INTRODUCES SHARP BENDS. THE PROTEIN APPEARS TO INDUCE DNA NEGATIVE SUPERCOILING BY PROTEIN-PROTEIN INTERACTION. BIOLOGICAL ROLE IS TO INDUCE DNA SUPERCOILING AND RELIEVE TORSIONAL STRESS RESULTING FROM DNA PROCESSES SUCH AS TRANSCRIPTION AND REPLICATION.
タイプ: FILM / 検出器: FILM / 日付: 1983年7月1日 / 詳細: MIRRORS
放射
モノクロメーター: GRAPHITE(002) / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray
放射波長
波長: 1.488 Å / 相対比: 1
反射
解像度: 2→10 Å / Num. obs: 18328 / % possible obs: 89 % / Observed criterion σ(I): 2 / 冗長度: 4 % / Biso Wilson estimate: 27 Å2 / Rmerge(I) obs: 0.07 / Rsym value: 0.07 / Net I/σ(I): 10
反射 シェル
解像度: 2→2.19 Å / 冗長度: 2 % / Rmerge(I) obs: 0.1 / Mean I/σ(I) obs: 2.5 / Rsym value: 0.1 / % possible all: 80
反射 シェル
*PLUS
% possible obs: 80 %
-
解析
ソフトウェア
名称
バージョン
分類
X-PLOR
3.8
モデル構築
X-PLOR
3.8
精密化
MOSFLM
データ削減
CCP4
データスケーリング
X-PLOR
3.8
位相決定
精密化
構造決定の手法: SINGLE ISOMORPHOUS REPLACEMENT PLUS ANOMALOUS (URANYL), NCS AVERAGING ON THREE MOLECULES 解像度: 2→6 Å / Rfactor Rfree error: 0.017 / Data cutoff high absF: 1000000 / Data cutoff low absF: 0.001 / 交差検証法: THROUGHOUT / σ(F): 2 詳細: THE MOLECULE CONTAINS A DISORDERED ARM REGION THAT IS KNOWN TO BIND DNA IN THE MINOR GROOVE FROM THE RELATED IHF STRUCTURE. EACH OF THE THREE MOLECULES IN THE ASYMMETRIC UNIT IS MISSING ...詳細: THE MOLECULE CONTAINS A DISORDERED ARM REGION THAT IS KNOWN TO BIND DNA IN THE MINOR GROOVE FROM THE RELATED IHF STRUCTURE. EACH OF THE THREE MOLECULES IN THE ASYMMETRIC UNIT IS MISSING DIFFERENT AMOUNTS OF THE ARM DUE TO THE LACK OF ELECTRON DENSITY. MOLECULE A IS MISSING 59 THROUGH 68, MOLECULE B 57 THROUGH 72, AND MOLECULE C 56 THROUGH 74.
Rfactor
反射数
%反射
Selection details
Rfree
0.213
333
10 %
RANDOM
Rwork
0.193
-
-
-
obs
0.193
17251
89 %
-
原子変位パラメータ
Biso mean: 27 Å2
Baniso -1
Baniso -2
Baniso -3
1-
0 Å2
0 Å2
0 Å2
2-
-
0 Å2
0 Å2
3-
-
-
0 Å2
精密化ステップ
サイクル: LAST / 解像度: 2→6 Å
タンパク質
核酸
リガンド
溶媒
全体
原子数
1700
0
0
271
1971
拘束条件
Refine-ID
タイプ
Dev ideal
X-RAY DIFFRACTION
x_bond_d
0.011
X-RAY DIFFRACTION
x_bond_d_na
X-RAY DIFFRACTION
x_bond_d_prot
X-RAY DIFFRACTION
x_angle_d
X-RAY DIFFRACTION
x_angle_d_na
X-RAY DIFFRACTION
x_angle_d_prot
X-RAY DIFFRACTION
x_angle_deg
1.53
X-RAY DIFFRACTION
x_angle_deg_na
X-RAY DIFFRACTION
x_angle_deg_prot
X-RAY DIFFRACTION
x_dihedral_angle_d
24.6
X-RAY DIFFRACTION
x_dihedral_angle_d_na
X-RAY DIFFRACTION
x_dihedral_angle_d_prot
X-RAY DIFFRACTION
x_improper_angle_d
1.6
X-RAY DIFFRACTION
x_improper_angle_d_na
X-RAY DIFFRACTION
x_improper_angle_d_prot
X-RAY DIFFRACTION
x_mcbond_it
X-RAY DIFFRACTION
x_mcangle_it
X-RAY DIFFRACTION
x_scbond_it
X-RAY DIFFRACTION
x_scangle_it
LS精密化 シェル
解像度: 2→2.19 Å / Rfactor Rfree error: 0.04 / Total num. of bins used: 8