1ytz
Crystal structure of skeletal muscle troponin in the Ca2+-activated state
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 | 1ytz |
| 沉积日期 deposition_date | 2005-02-11 |
| 结构标题 title | Crystal structure of skeletal muscle troponin in the Ca2+-activated state |
| 关键词 keywords | troponin, muscle, thin filament, actin binding, calcium, CONTRACTILE PROTEIN; CONTRACTILE 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 | 28.71 Å |
| 回转半径 Rg (电子) rg_electron | 27.85 Å |
| 零角强度 I(0) i0 | 36825000.00 |
| 分子量 molecular_weight | 46437.0 kDa |
| 排除体积 excluded_volume | 58045 ų |
| 包络体积 envelope_volume | 80684 ų |
| 水化壳体积 shell_volume | 25091 ų |
| 包络直径 envelope_diameter | 99.7 Å |
| 壳层 Rg shell_rg | 33.89 Å |
| 包络 Rg envelope_rg | 27.58 Å |
| 形状 Rg shape_rg | 27.84 Å |
| 总 Rg total_rg | 28.57 Å |
| 总原子数 total_atoms | 3249 |
| 残基数 n_residues | 390 |
| 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 | 94.0 Å |
| Rg (实空间) rg_real | 28.65 Å |
| Rg 误差 (实空间) rg_real_error | 0.67 Å |
| I(0) (实空间) i0_real | 3.6820e+07 |
| I(0) 误差 (实空间) i0_real_error | 5.2150e+05 |
| Rg (倒空间) rg_reciprocal | 28.68 Å |
| I(0) (倒空间) i0_reciprocal | 36830000.0000 |
| 解质量估计 total_estimate | 0.8957 |
| 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 | 41.0 Å |
| 偏度 Skewness skewness | 0.131 |
| 峰度 Kurtosis kurtosis | -0.581 |
| 角度范围 angular_range | — – 0.2750 Å−1 |
| 当前正则化参数 α current_alpha | 0.0000 |
| 最高正则化参数 α highest_alpha | 4428000.0000 |
| 实空间数据点数 n_real_points | 56 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.901; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.954; Smooth: 0.984 |
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) 7 domains
SCOP 2.08 (3 domains)
| 结构域编号 domain_id | d1ytzc_ |
| 类 Class class | a — All alpha proteins |
| 折叠类型 Fold fold | a.39 — EF Hand-like |
| 超家族 Superfamily superfamily | a.39.1 — EF-hand |
| 家族 Family family | a.39.1.5 — Calmodulin-like |
| 结构域编号 domain_id | d1ytzi1 |
| 类 Class class | h — Coiled coil proteins |
| 折叠类型 Fold fold | h.1 — Parallel coiled-coil |
| 超家族 Superfamily superfamily | h.1.25 — Troponin coil-coiled subunits |
| 家族 Family family | h.1.25.2 — Troponin I |
| 结构域编号 domain_id | d1ytzt1 |
| 类 Class class | h — Coiled coil proteins |
| 折叠类型 Fold fold | h.1 — Parallel coiled-coil |
| 超家族 Superfamily superfamily | h.1.25 — Troponin coil-coiled subunits |
| 家族 Family family | h.1.25.1 — Troponin T |
CATH v4.4 (4 domains)
| 结构域编号 domain_id | 1ytzC01 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 10 — Orthogonal Bundle |
| 拓扑 Topology topology | 238 — Recoverin; domain 1 |
| 同源超家族 H-superfamily homologous superfamily | 10 — EF-hand |
| 结构域编号 domain_id | 1ytzC02 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 10 — Orthogonal Bundle |
| 拓扑 Topology topology | 238 — Recoverin; domain 1 |
| 同源超家族 H-superfamily homologous superfamily | 10 — EF-hand |
| 结构域编号 domain_id | 1ytzI01 |
| 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 | 350 — Troponin complex, TnI/TnT subunit |
| 结构域编号 domain_id | 1ytzT00 |
| 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 | 350 — Troponin complex, TnI/TnT subunit |