1sz1
Mechanism of CCA-adding enzymes specificity revealed by crystal structures of ternary complexes
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 | 1sz1 |
| 沉积日期 deposition_date | 2004-04-02 |
| 结构标题 title | Mechanism of CCA-adding enzymes specificity revealed by crystal structures of ternary complexes |
| 关键词 keywords | CCA-adding enzyme, specificity, tRNA, complex, TRANSFERASE-RNA COMPLEX; TRANSFERASE/RNA |
| 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 | 38.51 Å |
| 回转半径 Rg (电子) rg_electron | 39.78 Å |
| 零角强度 I(0) i0 | 520590000.00 |
| 分子量 molecular_weight | 152660.0 kDa |
| 排除体积 excluded_volume | 176820 ų |
| 包络体积 envelope_volume | 260250 ų |
| 水化壳体积 shell_volume | 56273 ų |
| 包络直径 envelope_diameter | 147.2 Å |
| 壳层 Rg shell_rg | 43.79 Å |
| 包络 Rg envelope_rg | 39.13 Å |
| 形状 Rg shape_rg | 39.84 Å |
| 总 Rg total_rg | 39.83 Å |
| 总原子数 total_atoms | 10556 |
| 残基数 n_residues | 998 |
| 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 | 137.5 Å |
| Rg (实空间) rg_real | 38.53 Å |
| Rg 误差 (实空间) rg_real_error | 1.27 Å |
| I(0) (实空间) i0_real | 5.2060e+08 |
| I(0) 误差 (实空间) i0_real_error | 9.1230e+06 |
| Rg (倒空间) rg_reciprocal | 38.52 Å |
| I(0) (倒空间) i0_reciprocal | 520600000.0000 |
| 解质量估计 total_estimate | 0.8474 |
| 解质量评级 solution_quality | GOOD a GOOD solution |
| P(r) 峰数 n_peaks | 2 |
| 主峰位置 r_peak_primary | 47.0 Å |
| 偏度 Skewness skewness | 0.427 |
| 峰度 Kurtosis kurtosis | 0.088 |
| 角度范围 angular_range | — – 0.2050 Å−1 |
| 当前正则化参数 α current_alpha | 0.0000 |
| 最高正则化参数 α highest_alpha | 18270000.0000 |
| 实空间数据点数 n_real_points | 42 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.696; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.926 |
4. 晶体学与实验 4. Crystallography & Experiment
5. 实体与聚合体信息 (2)
6. 折叠分类 (SCOP + CATH) 6 domains
SCOP 2.08 (6 domains)
| 结构域编号 domain_id | d1sz1a1 |
| 类 Class class | a — All alpha proteins |
| 折叠类型 Fold fold | a.160 — PAP/OAS1 substrate-binding domain |
| 超家族 Superfamily superfamily | a.160.1 — PAP/OAS1 substrate-binding domain |
| 家族 Family family | a.160.1.3 — Archaeal tRNA CCA-adding enzyme substrate-binding domain |
| 结构域编号 domain_id | d1sz1a2 |
| 类 Class class | d — Alpha and beta proteins (a+b) |
| 折叠类型 Fold fold | d.218 — Nucleotidyltransferase |
| 超家族 Superfamily superfamily | d.218.1 — Nucleotidyltransferase |
| 家族 Family family | d.218.1.7 — Archaeal tRNA CCA-adding enzyme catalytic domain |
| 结构域编号 domain_id | d1sz1a3 |
| 类 Class class | d — Alpha and beta proteins (a+b) |
| 折叠类型 Fold fold | d.58 — Ferredoxin-like |
| 超家族 Superfamily superfamily | d.58.16 — PAP/Archaeal CCA-adding enzyme, C-terminal domain |
| 家族 Family family | d.58.16.2 — Archaeal tRNA CCA-adding enzyme |
| 结构域编号 domain_id | d1sz1b1 |
| 类 Class class | a — All alpha proteins |
| 折叠类型 Fold fold | a.160 — PAP/OAS1 substrate-binding domain |
| 超家族 Superfamily superfamily | a.160.1 — PAP/OAS1 substrate-binding domain |
| 家族 Family family | a.160.1.3 — Archaeal tRNA CCA-adding enzyme substrate-binding domain |
| 结构域编号 domain_id | d1sz1b2 |
| 类 Class class | d — Alpha and beta proteins (a+b) |
| 折叠类型 Fold fold | d.218 — Nucleotidyltransferase |
| 超家族 Superfamily superfamily | d.218.1 — Nucleotidyltransferase |
| 家族 Family family | d.218.1.7 — Archaeal tRNA CCA-adding enzyme catalytic domain |
| 结构域编号 domain_id | d1sz1b3 |
| 类 Class class | d — Alpha and beta proteins (a+b) |
| 折叠类型 Fold fold | d.58 — Ferredoxin-like |
| 超家族 Superfamily superfamily | d.58.16 — PAP/Archaeal CCA-adding enzyme, C-terminal domain |
| 家族 Family family | d.58.16.2 — Archaeal tRNA CCA-adding enzyme |