1g21
MGATP-BOUND AND NUCLEOTIDE-FREE STRUCTURES OF A NITROGENASE PROTEIN COMPLEX BETWEEN LEU127DEL-FE PROTEIN AND THE MOFE PROTEIN
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 | 1g21 |
| 沉积日期 deposition_date | 2000-10-16 |
| 结构标题 title | MGATP-BOUND AND NUCLEOTIDE-FREE STRUCTURES OF A NITROGENASE PROTEIN COMPLEX BETWEEN LEU127DEL-FE PROTEIN AND THE MOFE PROTEIN |
| 关键词 keywords | nitrogen-fixation, Fe protein, MoeFe protein, P-cluster, FeMo cofactor, 4Fe-4S, OXIDOREDUCTASE; OXIDOREDUCTASE |
| 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 | 51.18 Å |
| 回转半径 Rg (电子) rg_electron | 51.26 Å |
| 零角强度 I(0) i0 | 1824080000.00 |
| 分子量 molecular_weight | 348420.0 kDa |
| 排除体积 excluded_volume | 432200 ų |
| 包络体积 envelope_volume | 529930 ų |
| 水化壳体积 shell_volume | 88088 ų |
| 包络直径 envelope_diameter | 196.4 Å |
| 壳层 Rg shell_rg | 52.08 Å |
| 包络 Rg envelope_rg | 51.92 Å |
| 形状 Rg shape_rg | 51.22 Å |
| 总 Rg total_rg | 51.40 Å |
| 总原子数 total_atoms | 24237 |
| 残基数 n_residues | 3067 |
| 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 | 178.7 Å |
| Rg (实空间) rg_real | 51.56 Å |
| Rg 误差 (实空间) rg_real_error | 1.86 Å |
| I(0) (实空间) i0_real | 1.8240e+09 |
| I(0) 误差 (实空间) i0_real_error | 3.7170e+07 |
| Rg (倒空间) rg_reciprocal | 50.86 Å |
| I(0) (倒空间) i0_reciprocal | 1822000000.0000 |
| 解质量估计 total_estimate | 0.7937 |
| 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 | 46.1 Å |
| 偏度 Skewness skewness | 0.627 |
| 峰度 Kurtosis kurtosis | -0.064 |
| 角度范围 angular_range | — – 0.1550 Å−1 |
| 当前正则化参数 α current_alpha | 0.0000 |
| 最高正则化参数 α highest_alpha | 431400000.0000 |
| 实空间数据点数 n_real_points | 32 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.698; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.819; Smooth: 0.400 |
4. 晶体学与实验 4. Crystallography & Experiment
5. 实体与聚合体信息 (10)
6. 折叠分类 (SCOP + CATH) 26 domains
SCOP 2.08 (8 domains)
| 结构域编号 domain_id | d1g21a_ |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.92 — Chelatase-like |
| 超家族 Superfamily superfamily | c.92.2 — 'Helical backbone' metal receptor |
| 家族 Family family | c.92.2.3 — Nitrogenase iron-molybdenum protein |
| 结构域编号 domain_id | d1g21b_ |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.92 — Chelatase-like |
| 超家族 Superfamily superfamily | c.92.2 — 'Helical backbone' metal receptor |
| 家族 Family family | c.92.2.3 — Nitrogenase iron-molybdenum protein |
| 结构域编号 domain_id | d1g21c_ |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.92 — Chelatase-like |
| 超家族 Superfamily superfamily | c.92.2 — 'Helical backbone' metal receptor |
| 家族 Family family | c.92.2.3 — Nitrogenase iron-molybdenum protein |
| 结构域编号 domain_id | d1g21d_ |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.92 — Chelatase-like |
| 超家族 Superfamily superfamily | c.92.2 — 'Helical backbone' metal receptor |
| 家族 Family family | c.92.2.3 — Nitrogenase iron-molybdenum protein |
| 结构域编号 domain_id | d1g21e_ |
| 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.37.1.10 — Nitrogenase iron protein-like |
| 结构域编号 domain_id | d1g21f_ |
| 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.37.1.10 — Nitrogenase iron protein-like |
| 结构域编号 domain_id | d1g21g_ |
| 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.37.1.10 — Nitrogenase iron protein-like |
| 结构域编号 domain_id | d1g21h_ |
| 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.37.1.10 — Nitrogenase iron protein-like |
CATH v4.4 (18 domains)
| 结构域编号 domain_id | 1g21A01 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21A02 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21A03 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21B01 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21B02 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21B03 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21B04 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 20 — Up-down Bundle |
| 拓扑 Topology topology | 89 — Nitrogenase Molybdenum-iron Protein, subunit B; domain 4 |
| 同源超家族 H-superfamily homologous superfamily | 10 — Nitrogenase Molybdenum-iron Protein, subunit B, domain 4 |
| 结构域编号 domain_id | 1g21C01 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21C02 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21C03 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21D01 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21D02 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21D03 |
| 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 | 1980 — Nitrogenase molybdenum iron protein domain |
| 结构域编号 domain_id | 1g21D04 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 20 — Up-down Bundle |
| 拓扑 Topology topology | 89 — Nitrogenase Molybdenum-iron Protein, subunit B; domain 4 |
| 同源超家族 H-superfamily homologous superfamily | 10 — Nitrogenase Molybdenum-iron Protein, subunit B, domain 4 |
| 结构域编号 domain_id | 1g21E00 |
| 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 | 1g21F00 |
| 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 | 1g21G00 |
| 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 | 1g21H00 |
| 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 |