SAXSdb — 1lbh

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	1lbh
沉积日期 deposition_date	1996-02-17
结构标题 title	INTACT LACTOSE OPERON REPRESSOR WITH GRATUITOUS INDUCER IPTG
关键词 keywords	TRANSCRIPTION REGULATION, DNA-BINDING, REPRESSOR; TRANSCRIPTION REGULATION
实验方法 method	X-RAY DIFFRACTION

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2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)

回转半径 Rg (Guinier) rg_guinier	33.57 Å
回转半径 Rg (电子) rg_electron	32.81 Å
零角强度 I(0) i0	255954000.00
分子量 molecular_weight	127540.0 kDa
排除体积 excluded_volume	159560 Å³
包络体积 envelope_volume	196840 Å³
水化壳体积 shell_volume	48197 Å³
包络直径 envelope_diameter	106.3 Å
壳层 Rg shell_rg	41.31 Å
包络 Rg envelope_rg	32.36 Å
形状 Rg shape_rg	32.82 Å
总 Rg total_rg	33.39 Å
总原子数 total_atoms	8932
残基数 n_residues	1184
球谐函数阶数 n_harmonics	20
q 范围 q_range	— – 0.5000 Å⁻¹
数据点数 n_points	101
壳层类型 shell_type	directional
溶剂电子密度 solvent_density	0.3340 e/Å³
壳层衬度 contrast_shell	0.0300 e/Å³
CRYSOL 版本 crysol_version	4.1.3

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3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)

最大尺寸 Dmax dmax	104.1 Å
Rg (实空间) rg_real	33.43 Å
Rg 误差 (实空间) rg_real_error	0.62 Å
I(0) (实空间) i0_real	2.5600e+08
I(0) 误差 (实空间) i0_real_error	3.7800e+06
Rg (倒空间) rg_reciprocal	33.52 Å
I(0) (倒空间) i0_reciprocal	256000000.0000
解质量估计 total_estimate	0.9082
解质量评级 solution_quality	EXCELLENT a EXCELLENT solution
P(r) 峰数 n_peaks	1
主峰位置 r_peak_primary	44.3 Å
偏度 Skewness skewness	0.135
峰度 Kurtosis kurtosis	-0.565
角度范围 angular_range	— – 0.2350 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	52090000.0000
实空间数据点数 n_real_points	48
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.948; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.960

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4. 晶体学与实验 4. Crystallography & Experiment

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5. 实体与聚合体信息 (2)

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6. 折叠分类 (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

结构域编号 domain_id	d1lbha_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.93 — Periplasmic binding protein-like I
超家族 Superfamily superfamily	c.93.1 — Periplasmic binding protein-like I
家族 Family family	c.93.1.1 — L-arabinose binding protein-like

结构域编号 domain_id	d1lbhb_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.93 — Periplasmic binding protein-like I
超家族 Superfamily superfamily	c.93.1 — Periplasmic binding protein-like I
家族 Family family	c.93.1.1 — L-arabinose binding protein-like

结构域编号 domain_id	d1lbhc_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.93 — Periplasmic binding protein-like I
超家族 Superfamily superfamily	c.93.1 — Periplasmic binding protein-like I
家族 Family family	c.93.1.1 — L-arabinose binding protein-like

结构域编号 domain_id	d1lbhd_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.93 — Periplasmic binding protein-like I
超家族 Superfamily superfamily	c.93.1 — Periplasmic binding protein-like I
家族 Family family	c.93.1.1 — L-arabinose binding protein-like

CATH v4.4 (8 domains)

结构域编号 domain_id	1lbhA01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	2300 — Response regulator

结构域编号 domain_id	1lbhA02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	2300 — Response regulator

结构域编号 domain_id	1lbhB01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	2300 — Response regulator

结构域编号 domain_id	1lbhB02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	2300 — Response regulator

结构域编号 domain_id	1lbhC01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	2300 — Response regulator

结构域编号 domain_id	1lbhC02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	2300 — Response regulator

结构域编号 domain_id	1lbhD01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	2300 — Response regulator

结构域编号 domain_id	1lbhD02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	2300 — Response regulator

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7. 引用文献 (1)

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晶胞边长 a length_a	141.200 Å
晶胞边长 b length_b	75.100 Å
晶胞边长 c length_c	149.200 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	90.00 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	16

空间群 space_group	P 21 2 21
空间群编号 int_tables_number	18
晶系 crystal_system	—

分辨率 resolution	3.200 Å
最低分辨率 resolution_low	15.000 Å
R 因子 r_factor	0.2300
R_work r_work	0.2300
R_free r_free	—

描述 description	INTACT LACTOSE OPERON REPRESSOR WITH GRATUITOUS INDUCER IPTG
分子量 formula_weight	38657.1 kDa
来源方法 src_method	man
拷贝数 entity_count	4

聚合体类型 type	polypeptide(L)
链编号 strand_id	A,B,C,D
原子数 atom_count	8932

INTACT LACTOSE OPERON REPRESSOR WITH GRATUITOUS INDUCER IPTG

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution

1. 结构基本信息 1. Structure Basics

2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)

3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)

4. 晶体学与实验 4. Crystallography & Experiment

晶胞参数 Unit Cell

对称性 Symmetry

精修参数 Refinement

5. 实体与聚合体信息 (2)

Entity 1 polymer

聚合体 Polymer

来源 Source

Entity 2 non-polymer

6. 折叠分类 (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

CATH v4.4 (8 domains)

7. 引用文献 (1)

8. 文件与曲线 (10)

Files (7)

Curves (3)

来源生物 organism	Escherichia coli
NCBI 分类编号 ncbi_taxonomy_id	562
宿主生物 host_organism	Escherichia coli

描述 description	1-methylethyl 1-thio-beta-D-galactopyranoside
分子量 formula_weight	238.3 kDa
来源方法 src_method	syn
拷贝数 entity_count	4

fit	/app/data/saxs_computation/lb/1lbh/1lbh.fit
pddf	/app/data/pr_computation/lb/1lbh/1lbh.pr.out
profile	/app/data/saxs_computation/lb/1lbh/1lbh.dat