1tfk
Ribonuclease from Escherichia coli complexed with its inhibtor protein
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 | 1tfk |
| 沉积日期 deposition_date | 2004-05-27 |
| 结构标题 title | Ribonuclease from Escherichia coli complexed with its inhibtor protein |
| 关键词 keywords | PROTEIN-PROTEIN COMPLEX, TOXIN-TOXIN INHIBITOR COMPLEX; TOXIN/TOXIN INHIBITOR |
| 实验方法 method | X-RAY DIFFRACTION |
2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)
| 回转半径 Rg (Guinier) rg_guinier | 17.08 Å |
| 回转半径 Rg (电子) rg_electron | 15.94 Å |
| 零角强度 I(0) i0 | 8277630.00 |
| 分子量 molecular_weight | 20939.0 kDa |
| 排除体积 excluded_volume | 26190 ų |
| 包络体积 envelope_volume | 29713 ų |
| 水化壳体积 shell_volume | 15608 ų |
| 包络直径 envelope_diameter | 56.3 Å |
| 壳层 Rg shell_rg | 21.97 Å |
| 包络 Rg envelope_rg | 16.17 Å |
| 形状 Rg shape_rg | 15.91 Å |
| 总 Rg total_rg | 17.07 Å |
| 总原子数 total_atoms | 1471 |
| 残基数 n_residues | 180 |
| 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 | 58.9 Å |
| Rg (实空间) rg_real | 16.96 Å |
| Rg 误差 (实空间) rg_real_error | 0.36 Å |
| I(0) (实空间) i0_real | 8.2780e+06 |
| I(0) 误差 (实空间) i0_real_error | 9.3530e+04 |
| Rg (倒空间) rg_reciprocal | 16.98 Å |
| I(0) (倒空间) i0_reciprocal | 8278000.0000 |
| 解质量估计 total_estimate | 0.7754 |
| 解质量评级 solution_quality | GOOD a GOOD solution |
| P(r) 峰数 n_peaks | 3 |
| 主峰位置 r_peak_primary | 23.3 Å |
| 偏度 Skewness skewness | 0.107 |
| 峰度 Kurtosis kurtosis | -0.414 |
| 角度范围 angular_range | — – 0.4650 Å−1 |
| 当前正则化参数 α current_alpha | 0.0000 |
| 最高正则化参数 α highest_alpha | 2143000.0000 |
| 实空间数据点数 n_real_points | 77 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.696; Stabil: 0.996; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.000 |
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_id | d1tfka_ |
| 类 Class class | d — Alpha and beta proteins (a+b) |
| 折叠类型 Fold fold | d.243 — Colicin D/E5 nuclease domain |
| 超家族 Superfamily superfamily | d.243.1 — Colicin D/E5 nuclease domain |
| 家族 Family family | d.243.1.1 — Colicin D nuclease domain |
| 结构域编号 domain_id | d1tfkb2 |
| 类 Class class | a — All alpha proteins |
| 折叠类型 Fold fold | a.24 — Four-helical up-and-down bundle |
| 超家族 Superfamily superfamily | a.24.20 — Colicin D immunity protein |
| 家族 Family family | a.24.20.1 — Colicin D immunity protein |
| 结构域编号 domain_id | d1tfkb3 |
| 类 Class class | l — Artifacts |
| 折叠类型 Fold fold | l.1 — Tags |
| 超家族 Superfamily superfamily | l.1.1 — Tags |
| 家族 Family family | l.1.1.1 — Tags |
CATH v4.4 (2 domains)
| 结构域编号 domain_id | 1tfkA00 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 10 — Roll |
| 拓扑 Topology topology | 450 — Nuclear Transport Factor 2; Chain: A, |
| 同源超家族 H-superfamily homologous superfamily | 200 — |
| 结构域编号 domain_id | 1tfkB00 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 20 — Up-down Bundle |
| 拓扑 Topology topology | 120 — Four Helix Bundle (Hemerythrin (Met), subunit A) |
| 同源超家族 H-superfamily homologous superfamily | 650 — Colicin D |