1xtc
CHOLERA TOXIN
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 | 1xtc |
| 沉积日期 deposition_date | 1996-01-10 |
| 结构标题 title | CHOLERA TOXIN |
| 关键词 keywords | ENTEROTOXIN, TOXIN; TOXIN |
| 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 | 28.18 Å |
| 回转半径 Rg (电子) rg_electron | 26.87 Å |
| 零角强度 I(0) i0 | 120871000.00 |
| 分子量 molecular_weight | 85276.0 kDa |
| 排除体积 excluded_volume | 106180 ų |
| 包络体积 envelope_volume | 125030 ų |
| 水化壳体积 shell_volume | 37813 ų |
| 包络直径 envelope_diameter | 92.4 Å |
| 壳层 Rg shell_rg | 34.97 Å |
| 包络 Rg envelope_rg | 26.98 Å |
| 形状 Rg shape_rg | 26.90 Å |
| 总 Rg total_rg | 27.55 Å |
| 总原子数 total_atoms | 5997 |
| 残基数 n_residues | 752 |
| 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 | 88.1 Å |
| Rg (实空间) rg_real | 28.01 Å |
| Rg 误差 (实空间) rg_real_error | 0.64 Å |
| I(0) (实空间) i0_real | 1.2090e+08 |
| I(0) 误差 (实空间) i0_real_error | 1.7220e+06 |
| Rg (倒空间) rg_reciprocal | 28.06 Å |
| I(0) (倒空间) i0_reciprocal | 120900000.0000 |
| 解质量估计 total_estimate | 0.8269 |
| 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 | 36.2 Å |
| 偏度 Skewness skewness | 0.151 |
| 峰度 Kurtosis kurtosis | -0.514 |
| 角度范围 angular_range | — – 0.2800 Å−1 |
| 当前正则化参数 α current_alpha | 0.0000 |
| 最高正则化参数 α highest_alpha | 50540000.0000 |
| 实空间数据点数 n_real_points | 57 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.919; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; 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) 13 domains
SCOP 2.08 (6 domains)
| 结构域编号 domain_id | d1xtc.1 |
| 类 Class class | d — Alpha and beta proteins (a+b) |
| 折叠类型 Fold fold | d.166 — ADP-ribosylation |
| 超家族 Superfamily superfamily | d.166.1 — ADP-ribosylation |
| 家族 Family family | d.166.1.1 — ADP-ribosylating toxins |
| 结构域编号 domain_id | d1xtcd_ |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.40 — OB-fold |
| 超家族 Superfamily superfamily | b.40.2 — Bacterial enterotoxins |
| 家族 Family family | b.40.2.1 — Bacterial AB5 toxins, B-subunits |
| 结构域编号 domain_id | d1xtce_ |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.40 — OB-fold |
| 超家族 Superfamily superfamily | b.40.2 — Bacterial enterotoxins |
| 家族 Family family | b.40.2.1 — Bacterial AB5 toxins, B-subunits |
| 结构域编号 domain_id | d1xtcf_ |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.40 — OB-fold |
| 超家族 Superfamily superfamily | b.40.2 — Bacterial enterotoxins |
| 家族 Family family | b.40.2.1 — Bacterial AB5 toxins, B-subunits |
| 结构域编号 domain_id | d1xtcg_ |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.40 — OB-fold |
| 超家族 Superfamily superfamily | b.40.2 — Bacterial enterotoxins |
| 家族 Family family | b.40.2.1 — Bacterial AB5 toxins, B-subunits |
| 结构域编号 domain_id | d1xtch_ |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.40 — OB-fold |
| 超家族 Superfamily superfamily | b.40.2 — Bacterial enterotoxins |
| 家族 Family family | b.40.2.1 — Bacterial AB5 toxins, B-subunits |
CATH v4.4 (7 domains)
| 结构域编号 domain_id | 1xtcA00 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 90 — Alpha-Beta Complex |
| 拓扑 Topology topology | 210 — Heat-Labile Enterotoxin; Chain A |
| 同源超家族 H-superfamily homologous superfamily | 10 — Heat-Labile Enterotoxin, subunit A |
| 结构域编号 domain_id | 1xtcC00 |
| 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 | 240 — |
| 结构域编号 domain_id | 1xtcD00 |
| 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 | 110 — |
| 结构域编号 domain_id | 1xtcE00 |
| 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 | 110 — |
| 结构域编号 domain_id | 1xtcF00 |
| 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 | 110 — |
| 结构域编号 domain_id | 1xtcG00 |
| 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 | 110 — |
| 结构域编号 domain_id | 1xtcH00 |
| 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 | 110 — |