1q1b
Crystal structure of E. coli MalK in the nucleotide-free form
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 | 1q1b |
| 沉积日期 deposition_date | 2003-07-18 |
| 结构标题 title | Crystal structure of E. coli MalK in the nucleotide-free form |
| 关键词 keywords | Nucleotide-free form, semi-open dimer, sugar transport, TRANSPORT PROTEIN; TRANSPORT PROTEIN |
| 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 | 42.14 Å |
| 回转半径 Rg (电子) rg_electron | 42.01 Å |
| 零角强度 I(0) i0 | 386247000.00 |
| 分子量 molecular_weight | 162320.0 kDa |
| 排除体积 excluded_volume | 204270 ų |
| 包络体积 envelope_volume | 283080 ų |
| 水化壳体积 shell_volume | 56763 ų |
| 包络直径 envelope_diameter | 146.3 Å |
| 壳层 Rg shell_rg | 46.56 Å |
| 包络 Rg envelope_rg | 41.29 Å |
| 形状 Rg shape_rg | 41.99 Å |
| 总 Rg total_rg | 42.30 Å |
| 总原子数 total_atoms | 11412 |
| 残基数 n_residues | 1468 |
| 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 | 141.9 Å |
| Rg (实空间) rg_real | 42.28 Å |
| Rg 误差 (实空间) rg_real_error | 1.79 Å |
| I(0) (实空间) i0_real | 3.8620e+08 |
| I(0) 误差 (实空间) i0_real_error | 7.1820e+06 |
| Rg (倒空间) rg_reciprocal | 42.14 Å |
| I(0) (倒空间) i0_reciprocal | 386200000.0000 |
| 解质量估计 total_estimate | 0.8585 |
| 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 | 46.0 Å |
| 偏度 Skewness skewness | 0.452 |
| 峰度 Kurtosis kurtosis | -0.329 |
| 角度范围 angular_range | — – 0.1850 Å−1 |
| 当前正则化参数 α current_alpha | 0.0000 |
| 最高正则化参数 α highest_alpha | 38450000.0000 |
| 实空间数据点数 n_real_points | 38 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.802; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.992; Smooth: 0.762 |
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) 20 domains
SCOP 2.08 (8 domains)
| 结构域编号 domain_id | d1q1ba1 |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.40 — OB-fold |
| 超家族 Superfamily superfamily | b.40.6 — MOP-like |
| 家族 Family family | b.40.6.3 — ABC-transporter additional domain |
| 结构域编号 domain_id | d1q1ba2 |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.37 — P-loop containing nucleoside triphosphate hydrolases |
| 超家族 Superfamily superfamily | c.37.1 — P-loop containing nucleoside triphosphate hydrolases |
| 家族 Family family | c.37.1.12 — ABC transporter ATPase domain-like |
| 结构域编号 domain_id | d1q1bb1 |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.40 — OB-fold |
| 超家族 Superfamily superfamily | b.40.6 — MOP-like |
| 家族 Family family | b.40.6.3 — ABC-transporter additional domain |
| 结构域编号 domain_id | d1q1bb2 |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.37 — P-loop containing nucleoside triphosphate hydrolases |
| 超家族 Superfamily superfamily | c.37.1 — P-loop containing nucleoside triphosphate hydrolases |
| 家族 Family family | c.37.1.12 — ABC transporter ATPase domain-like |
| 结构域编号 domain_id | d1q1bc1 |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.40 — OB-fold |
| 超家族 Superfamily superfamily | b.40.6 — MOP-like |
| 家族 Family family | b.40.6.3 — ABC-transporter additional domain |
| 结构域编号 domain_id | d1q1bc2 |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.37 — P-loop containing nucleoside triphosphate hydrolases |
| 超家族 Superfamily superfamily | c.37.1 — P-loop containing nucleoside triphosphate hydrolases |
| 家族 Family family | c.37.1.12 — ABC transporter ATPase domain-like |
| 结构域编号 domain_id | d1q1bd1 |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.40 — OB-fold |
| 超家族 Superfamily superfamily | b.40.6 — MOP-like |
| 家族 Family family | b.40.6.3 — ABC-transporter additional domain |
| 结构域编号 domain_id | d1q1bd2 |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.37 — P-loop containing nucleoside triphosphate hydrolases |
| 超家族 Superfamily superfamily | c.37.1 — P-loop containing nucleoside triphosphate hydrolases |
| 家族 Family family | c.37.1.12 — ABC transporter ATPase domain-like |
CATH v4.4 (12 domains)
| 结构域编号 domain_id | 1q1bA01 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| 拓扑 Topology topology | 50 — Rossmann fold |
| 同源超家族 H-superfamily homologous superfamily | 300 — P-loop containing nucleotide triphosphate hydrolases |
| 结构域编号 domain_id | 1q1bA02 |
| 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 |
| 结构域编号 domain_id | 1q1bA03 |
| 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 | 100 — RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain |
| 结构域编号 domain_id | 1q1bB01 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| 拓扑 Topology topology | 50 — Rossmann fold |
| 同源超家族 H-superfamily homologous superfamily | 300 — P-loop containing nucleotide triphosphate hydrolases |
| 结构域编号 domain_id | 1q1bB02 |
| 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 |
| 结构域编号 domain_id | 1q1bB03 |
| 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 | 100 — RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain |
| 结构域编号 domain_id | 1q1bC01 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| 拓扑 Topology topology | 50 — Rossmann fold |
| 同源超家族 H-superfamily homologous superfamily | 300 — P-loop containing nucleotide triphosphate hydrolases |
| 结构域编号 domain_id | 1q1bC02 |
| 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 |
| 结构域编号 domain_id | 1q1bC03 |
| 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 | 100 — RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain |
| 结构域编号 domain_id | 1q1bD01 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| 拓扑 Topology topology | 50 — Rossmann fold |
| 同源超家族 H-superfamily homologous superfamily | 300 — P-loop containing nucleotide triphosphate hydrolases |
| 结构域编号 domain_id | 1q1bD02 |
| 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 |
| 结构域编号 domain_id | 1q1bD03 |
| 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 | 100 — RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain |