2b7q
Crystal structure of quinolinic acid phosphoribosyltransferase from Helicobacter pylori with nicotinate mononucleotide
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 | 2b7q |
| 沉积日期 deposition_date | 2005-10-05 |
| 结构标题 title | Crystal structure of quinolinic acid phosphoribosyltransferase from Helicobacter pylori with nicotinate mononucleotide |
| 关键词 keywords | quinolinate phosphoribosyltransferase, quinolinic acid, Helicobacter pylori, transferase; TRANSFERASE |
| 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 | 35.63 Å |
| 回转半径 Rg (电子) rg_electron | 34.95 Å |
| 零角强度 I(0) i0 | 135799000.00 |
| 分子量 molecular_weight | 93363.0 kDa |
| 排除体积 excluded_volume | 117210 ų |
| 包络体积 envelope_volume | 166130 ų |
| 水化壳体积 shell_volume | 40097 ų |
| 包络直径 envelope_diameter | 106.9 Å |
| 壳层 Rg shell_rg | 40.95 Å |
| 包络 Rg envelope_rg | 33.99 Å |
| 形状 Rg shape_rg | 34.98 Å |
| 总 Rg total_rg | 35.34 Å |
| 总原子数 total_atoms | 6546 |
| 残基数 n_residues | 819 |
| 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 | 106.9 Å |
| Rg (实空间) rg_real | 35.48 Å |
| Rg 误差 (实空间) rg_real_error | 0.53 Å |
| I(0) (实空间) i0_real | 1.3580e+08 |
| I(0) 误差 (实空间) i0_real_error | 1.9480e+06 |
| Rg (倒空间) rg_reciprocal | 35.58 Å |
| I(0) (倒空间) i0_reciprocal | 135800000.0000 |
| 解质量估计 total_estimate | 0.9113 |
| 解质量评级 solution_quality | EXCELLENT a EXCELLENT solution |
| P(r) 峰数 n_peaks | 1 |
| 主峰位置 r_peak_primary | 51.0 Å |
| 偏度 Skewness skewness | 0.022 |
| 峰度 Kurtosis kurtosis | -0.770 |
| 角度范围 angular_range | — – 0.2200 Å−1 |
| 当前正则化参数 α current_alpha | 0.0001 |
| 最高正则化参数 α highest_alpha | 13430000.0000 |
| 实空间数据点数 n_real_points | 45 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.978; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.911 |
4. 晶体学与实验 4. Crystallography & Experiment
5. 实体与聚合体信息 (3)
6. 折叠分类 (SCOP + CATH) 6 domains
CATH v4.4 (6 domains)
| 结构域编号 domain_id | 2b7qA01 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 90 — Alpha-Beta Complex |
| 拓扑 Topology topology | 1170 — Aldehyde Oxidoreductase; domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 20 — Quinolinate phosphoribosyl transferase, N-terminal domain |
| 结构域编号 domain_id | 2b7qA02 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 20 — Alpha-Beta Barrel |
| 拓扑 Topology topology | 20 — TIM Barrel |
| 同源超家族 H-superfamily homologous superfamily | 70 — Aldolase class I |
| 结构域编号 domain_id | 2b7qB01 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 90 — Alpha-Beta Complex |
| 拓扑 Topology topology | 1170 — Aldehyde Oxidoreductase; domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 20 — Quinolinate phosphoribosyl transferase, N-terminal domain |
| 结构域编号 domain_id | 2b7qB02 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 20 — Alpha-Beta Barrel |
| 拓扑 Topology topology | 20 — TIM Barrel |
| 同源超家族 H-superfamily homologous superfamily | 70 — Aldolase class I |
| 结构域编号 domain_id | 2b7qC01 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 90 — Alpha-Beta Complex |
| 拓扑 Topology topology | 1170 — Aldehyde Oxidoreductase; domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 20 — Quinolinate phosphoribosyl transferase, N-terminal domain |
| 结构域编号 domain_id | 2b7qC02 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 20 — Alpha-Beta Barrel |
| 拓扑 Topology topology | 20 — TIM Barrel |
| 同源超家族 H-superfamily homologous superfamily | 70 — Aldolase class I |