2kbn
;Solution NMR structure of the OB domain (residues 67-166) of MM0293 from Methanosarcina mazei. Northeast Structural Genomics Consortium target MaR214a. ;
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 | 2kbn |
| 沉积日期 deposition_date | 2008-12-03 |
| 结构标题 title | ;Solution NMR structure of the OB domain (residues 67-166) of MM0293 from Methanosarcina mazei. Northeast Structural Genomics Consortium target MaR214a. ; |
| 关键词 keywords | ;nucleic acid binding protein, beta barrel, Structural Genomics, PSI-2, Protein Structure Initiative, Northeast Structural Genomics Consortium, NESG, unknown function ;; structural genomics, unknown function |
| 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 | 15.94 Å |
| 回转半径 Rg (电子) rg_electron | 14.99 Å |
| 零角强度 I(0) i0 | 859912000.00 |
| 分子量 molecular_weight | 249920.0 kDa |
| 排除体积 excluded_volume | 313420 ų |
| 包络体积 envelope_volume | 44301 ų |
| 水化壳体积 shell_volume | 18907 ų |
| 包络直径 envelope_diameter | 65.8 Å |
| 壳层 Rg shell_rg | 26.69 Å |
| 包络 Rg envelope_rg | 21.54 Å |
| 形状 Rg shape_rg | 15.04 Å |
| 总 Rg total_rg | 15.08 Å |
| 总原子数 total_atoms | 35120 |
| 残基数 n_residues | 2180 |
| 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 | 60.4 Å |
| Rg (实空间) rg_real | 16.02 Å |
| Rg 误差 (实空间) rg_real_error | 0.46 Å |
| I(0) (实空间) i0_real | 8.5990e+08 |
| I(0) 误差 (实空间) i0_real_error | 1.1390e+07 |
| Rg (倒空间) rg_reciprocal | 16.01 Å |
| I(0) (倒空间) i0_reciprocal | 859900000.0000 |
| 解质量估计 total_estimate | 0.7794 |
| 解质量评级 solution_quality | GOOD a GOOD solution |
| P(r) 峰数 n_peaks | 1 |
| 主峰位置 r_peak_primary | 59.6 Å |
| 偏度 Skewness skewness | 0.565 |
| 峰度 Kurtosis kurtosis | 0.309 |
| 角度范围 angular_range | — – 0.5000 Å−1 |
| 当前正则化参数 α current_alpha | 0.0000 |
| 最高正则化参数 α highest_alpha | 384000.0000 |
| 实空间数据点数 n_real_points | 80 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.444; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.814; Smooth: 0.982 |
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 | 2kbnA00 |
| 类 Class class | 2 — Mainly Beta |
| 架构 Architecture architecture | 40 — Beta Barrel |
| 拓扑 Topology topology | 50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P) |
| 同源超家族 H-superfamily homologous superfamily | 140 — Nucleic acid-binding proteins |