2ch7

Crystal structure of the cytoplasmic domain of a bacterial chemoreceptor from Thermotoga maritima

Method: X-RAY DIFFRACTION Dmax: 215.6 Å Quality: REASONABLE

SAXS 散射曲线 SAXS Profile

SAXS profile for 2ch7

P(r) 距离分布 P(r) Distribution

P(r) distribution for 2ch7
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1. 结构基本信息 1. Structure Basics

条目编号 entry_id2ch7
沉积日期 deposition_date2006-03-13
结构标题 titleCrystal structure of the cytoplasmic domain of a bacterial chemoreceptor from Thermotoga maritima
关键词 keywordsCHEMOTAXIS, RECEPTOR, FOUR-HELIX BUNDLE, SIGNAL TRANSDUCTION, METHYL-ACCEPTING RECEPTOR; CHEMOTAXIS
实验方法 methodX-RAY DIFFRACTION

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

回转半径 Rg (Guinier) rg_guinier62.55
回转半径 Rg (电子) rg_electron66.32
零角强度 I(0) i076583000.00
分子量 molecular_weight66527.0 kDa
排除体积 excluded_volume81240 ų
包络体积 envelope_volume116220 ų
水化壳体积 shell_volume21357 ų
包络直径 envelope_diameter233.1
壳层 Rg shell_rg37.78
包络 Rg envelope_rg67.91
形状 Rg shape_rg66.38
总 Rg total_rg65.06
总原子数 total_atoms4632
残基数 n_residues617
球谐函数阶数 n_harmonics20
q 范围 q_range— – 0.5000 −1
数据点数 n_points101
壳层类型 shell_typedirectional
溶剂电子密度 solvent_density0.3340 e/ų
壳层衬度 contrast_shell0.0300 e/ų
CRYSOL 版本 crysol_version4.1.3

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

最大尺寸 Dmax dmax215.6
Rg (实空间) rg_real64.75
Rg 误差 (实空间) rg_real_error2.76
I(0) (实空间) i0_real7.6540e+07
I(0) 误差 (实空间) i0_real_error1.8250e+06
Rg (倒空间) rg_reciprocal60.54
I(0) (倒空间) i0_reciprocal76030000.0000
解质量估计 total_estimate0.5660
解质量评级 solution_quality REASONABLE a REASONABLE solution
P(r) 峰数 n_peaks2
主峰位置 r_peak_primary25.9
偏度 Skewness skewness0.633
峰度 Kurtosis kurtosis-0.519
角度范围 angular_range— – 0.1250 −1
当前正则化参数 α current_alpha0.0004
最高正则化参数 α highest_alpha1912000.0000
实空间数据点数 n_real_points26
GNOM 版本 gnom_version4.1.3
质量判据 quality_criteria AN1: 0.000; Oscil: 0.016; Stabil: 0.996; Sysdev: 1.000; Positv: 1.000; Valcen: 0.032; Smooth: 0.285

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

5. 实体与聚合体信息 (4)

6. 折叠分类 (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

结构域编号 domain_idd2ch7a1
类 Class classh — Coiled coil proteins
折叠类型 Fold foldh.4 — Antiparallel coiled-coil
超家族 Superfamily superfamilyh.4.5 — Methyl-accepting chemotaxis protein (MCP) signaling domain
家族 Family familyh.4.5.1 — Methyl-accepting chemotaxis protein (MCP) signaling domain
结构域编号 domain_idd2ch7b1
类 Class classh — Coiled coil proteins
折叠类型 Fold foldh.4 — Antiparallel coiled-coil
超家族 Superfamily superfamilyh.4.5 — Methyl-accepting chemotaxis protein (MCP) signaling domain
家族 Family familyh.4.5.1 — Methyl-accepting chemotaxis protein (MCP) signaling domain
结构域编号 domain_idd2ch7b2
类 Class classl — Artifacts
折叠类型 Fold foldl.1 — Tags
超家族 Superfamily superfamilyl.1.1 — Tags
家族 Family familyl.1.1.1 — Tags

CATH v4.4 (2 domains)

结构域编号 domain_id2ch7A00
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology287 — Helix Hairpins
同源超家族 H-superfamily homologous superfamily950 — Methyl-accepting chemotaxis protein
结构域编号 domain_id2ch7B00
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology287 — Helix Hairpins
同源超家族 H-superfamily homologous superfamily950 — Methyl-accepting chemotaxis protein

7. 引用文献 (1)

8. 文件与曲线 (10)