2kse
;Backbone structure of the membrane domain of E. coli histidine kinase receptor QseC, Center for Structures of Membrane Proteins (CSMP) target 4311C ;
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
| 条目编号 entry_id | 2kse |
| 沉积日期 deposition_date | 2010-01-02 |
| 结构标题 title | ;Backbone structure of the membrane domain of E. coli histidine kinase receptor QseC, Center for Structures of Membrane Proteins (CSMP) target 4311C ; |
| 关键词 keywords | ;methods development, Histidine kinase receptor, membrane domain, two-helical hairpin, cell-free synthesis, ATP-binding, Cell inner membrane, Cell membrane, Kinase, Membrane, Nucleotide-binding, Phosphoprotein, Transferase, Transmembrane, Two-component regulatory system, Structural Genomics, PSI-2, Protein Structure Initiative, Center for Structures of Membrane Proteins, CSMP ;; TRANSFERASE |
| 实验方法 method | SOLUTION NMR |
2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)
| 回转半径 Rg (Guinier) rg_guinier | 17.48 Å |
| 回转半径 Rg (电子) rg_electron | 16.88 Å |
| 零角强度 I(0) i0 | 343604000.00 |
| 分子量 molecular_weight | 178180.0 kDa |
| 排除体积 excluded_volume | 232520 ų |
| 包络体积 envelope_volume | 46897 ų |
| 水化壳体积 shell_volume | 18810 ų |
| 包络直径 envelope_diameter | 74.4 Å |
| 壳层 Rg shell_rg | 27.45 Å |
| 包络 Rg envelope_rg | 21.71 Å |
| 形状 Rg shape_rg | 16.87 Å |
| 总 Rg total_rg | 17.29 Å |
| 总原子数 total_atoms | 26000 |
| 残基数 n_residues | 1540 |
| 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/ų |
| 壳层衬度 contrast_shell | 0.0300 e/ų |
| CRYSOL 版本 crysol_version | 4.1.3 |
3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)
| 最大尺寸 Dmax dmax | 46.8 Å |
| Rg (实空间) rg_real | 16.72 Å |
| Rg 误差 (实空间) rg_real_error | 0.09 Å |
| I(0) (实空间) i0_real | 3.2860e+08 |
| I(0) 误差 (实空间) i0_real_error | 3.1510e+06 |
| Rg (倒空间) rg_reciprocal | 17.68 Å |
| I(0) (倒空间) i0_reciprocal | 343600000.0000 |
| 解质量估计 total_estimate | 0.6622 |
| 解质量评级 solution_quality | REASONABLE a REASONABLE solution |
| P(r) 峰数 n_peaks | 1 |
| 主峰位置 r_peak_primary | 15.6 Å |
| 偏度 Skewness skewness | 0.343 |
| 峰度 Kurtosis kurtosis | -0.721 |
| 角度范围 angular_range | — – 0.4550 Å−1 |
| 当前正则化参数 α current_alpha | 6.6720 |
| 最高正则化参数 α highest_alpha | 103000.0000 |
| 实空间数据点数 n_real_points | 76 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.001; Oscil: 0.955; Stabil: 0.966; Sysdev: 0.000; Positv: 1.000; Valcen: 0.847; Smooth: 0.000 |
4. 晶体学与实验 4. Crystallography & Experiment
5. 实体与聚合体信息 (1)
6. 折叠分类 (SCOP + CATH) 1 domains
CATH v4.4 (1 domains)
| 结构域编号 domain_id | 2kseA00 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 20 — Up-down Bundle |
| 拓扑 Topology topology | 5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces |
| 同源超家族 H-superfamily homologous superfamily | 1040 — Sensor protein qsec. |