2ih1
Ion selectivity in a semi-synthetic K+ channel locked in the conductive conformation
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 | 2ih1 |
| 沉积日期 deposition_date | 2006-09-25 |
| 结构标题 title | Ion selectivity in a semi-synthetic K+ channel locked in the conductive conformation |
| 关键词 keywords | Ion channel D-Amino acid semi-synthetic, MEMBRANE PROTEIN; MEMBRANE 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 | 30.16 Å |
| 回转半径 Rg (电子) rg_electron | 30.68 Å |
| 零角强度 I(0) i0 | 53273400.00 |
| 分子量 molecular_weight | 58233.0 kDa |
| 排除体积 excluded_volume | 73160 ų |
| 包络体积 envelope_volume | 94923 ų |
| 水化壳体积 shell_volume | 28554 ų |
| 包络直径 envelope_diameter | 128.9 Å |
| 壳层 Rg shell_rg | 34.13 Å |
| 包络 Rg envelope_rg | 31.80 Å |
| 形状 Rg shape_rg | 30.63 Å |
| 总 Rg total_rg | 31.16 Å |
| 总原子数 total_atoms | 4097 |
| 残基数 n_residues | 531 |
| 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 | 79.7 Å |
| Rg (实空间) rg_real | 27.36 Å |
| Rg 误差 (实空间) rg_real_error | 0.18 Å |
| I(0) (实空间) i0_real | 5.0370e+07 |
| I(0) 误差 (实空间) i0_real_error | 6.2000e+05 |
| Rg (倒空间) rg_reciprocal | 30.52 Å |
| I(0) (倒空间) i0_reciprocal | 53260000.0000 |
| 解质量估计 total_estimate | 0.6853 |
| 解质量评级 solution_quality | REASONABLE a REASONABLE solution |
| P(r) 峰数 n_peaks | 1 |
| 主峰位置 r_peak_primary | 30.1 Å |
| 偏度 Skewness skewness | 0.367 |
| 峰度 Kurtosis kurtosis | -0.458 |
| 角度范围 angular_range | — – 0.2650 Å−1 |
| 当前正则化参数 α current_alpha | 1.3680 |
| 最高正则化参数 α highest_alpha | 5424000.0000 |
| 实空间数据点数 n_real_points | 54 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.001; Oscil: 0.985; Stabil: 0.989; Sysdev: 0.000; Positv: 1.000; Valcen: 0.988; Smooth: 0.000 |
4. 晶体学与实验 4. Crystallography & Experiment
5. 实体与聚合体信息 (6)
6. 折叠分类 (SCOP + CATH) 11 domains
SCOP 2.08 (6 domains)
| 结构域编号 domain_id | d2ih1a1 |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.1 — Immunoglobulin-like beta-sandwich |
| 超家族 Superfamily superfamily | b.1.1 — Immunoglobulin |
| 家族 Family family | b.1.1.1 — V set domains (antibody variable domain-like) |
| 结构域编号 domain_id | d2ih1a2 |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.1 — Immunoglobulin-like beta-sandwich |
| 超家族 Superfamily superfamily | b.1.1 — Immunoglobulin |
| 家族 Family family | b.1.1.2 — C1 set domains (antibody constant domain-like) |
| 结构域编号 domain_id | d2ih1a3 |
| 类 Class class | l — Artifacts |
| 折叠类型 Fold fold | l.1 — Tags |
| 超家族 Superfamily superfamily | l.1.1 — Tags |
| 家族 Family family | l.1.1.1 — Tags |
| 结构域编号 domain_id | d2ih1b1 |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.1 — Immunoglobulin-like beta-sandwich |
| 超家族 Superfamily superfamily | b.1.1 — Immunoglobulin |
| 家族 Family family | b.1.1.1 — V set domains (antibody variable domain-like) |
| 结构域编号 domain_id | d2ih1b2 |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.1 — Immunoglobulin-like beta-sandwich |
| 超家族 Superfamily superfamily | b.1.1 — Immunoglobulin |
| 家族 Family family | b.1.1.2 — C1 set domains (antibody constant domain-like) |
| 结构域编号 domain_id | d2ih1c_ |
| 类 Class class | f — Membrane and cell surface proteins and peptides |
| 折叠类型 Fold fold | f.14 — Gated ion channels |
| 超家族 Superfamily superfamily | f.14.1 — Voltage-gated ion channels |
| 家族 Family family | f.14.1.1 — Voltage-gated potassium channels |
CATH v4.4 (5 domains)
| 结构域编号 domain_id | 2ih1A01 |
| 类 Class class | 2 — Mainly Beta |
| 架构 Architecture architecture | 60 — Sandwich |
| 拓扑 Topology topology | 40 — Immunoglobulin-like |
| 同源超家族 H-superfamily homologous superfamily | 10 — Immunoglobulins |
| 结构域编号 domain_id | 2ih1A02 |
| 类 Class class | 2 — Mainly Beta |
| 架构 Architecture architecture | 60 — Sandwich |
| 拓扑 Topology topology | 40 — Immunoglobulin-like |
| 同源超家族 H-superfamily homologous superfamily | 10 — Immunoglobulins |
| 结构域编号 domain_id | 2ih1B01 |
| 类 Class class | 2 — Mainly Beta |
| 架构 Architecture architecture | 60 — Sandwich |
| 拓扑 Topology topology | 40 — Immunoglobulin-like |
| 同源超家族 H-superfamily homologous superfamily | 10 — Immunoglobulins |
| 结构域编号 domain_id | 2ih1B02 |
| 类 Class class | 2 — Mainly Beta |
| 架构 Architecture architecture | 60 — Sandwich |
| 拓扑 Topology topology | 40 — Immunoglobulin-like |
| 同源超家族 H-superfamily homologous superfamily | 10 — Immunoglobulins |
| 结构域编号 domain_id | 2ih1C00 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 10 — Orthogonal Bundle |
| 拓扑 Topology topology | 287 — Helix Hairpins |
| 同源超家族 H-superfamily homologous superfamily | 70 — |