2gce
;The 1,1-proton transfer reaction mechanism by alpha-methylacyl-CoA racemase is catalyzed by an aspartate/histidine pair and involves a smooth, methionine-rich surface for binding the fatty acyl moiety ;
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 | 2gce |
| 沉积日期 deposition_date | 2006-03-14 |
| 结构标题 title | ;The 1,1-proton transfer reaction mechanism by alpha-methylacyl-CoA racemase is catalyzed by an aspartate/histidine pair and involves a smooth, methionine-rich surface for binding the fatty acyl moiety ; |
| 关键词 keywords | Alpha-methylacyl-CoA racemase, racemase, CoA transferase, proton transfer, Coenzyme A, ISOMERASE; ISOMERASE |
| 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 | 48.48 Å |
| 回转半径 Rg (电子) rg_electron | 48.67 Å |
| 零角强度 I(0) i0 | 372336000.00 |
| 分子量 molecular_weight | 156140.0 kDa |
| 排除体积 excluded_volume | 193350 ų |
| 包络体积 envelope_volume | 251670 ų |
| 水化壳体积 shell_volume | 42355 ų |
| 包络直径 envelope_diameter | 169.1 Å |
| 壳层 Rg shell_rg | 54.58 Å |
| 包络 Rg envelope_rg | 47.28 Å |
| 形状 Rg shape_rg | 48.72 Å |
| 总 Rg total_rg | 48.70 Å |
| 总原子数 total_atoms | 10964 |
| 残基数 n_residues | 1416 |
| 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 | 164.1 Å |
| Rg (实空间) rg_real | 49.06 Å |
| Rg 误差 (实空间) rg_real_error | 1.88 Å |
| I(0) (实空间) i0_real | 3.7230e+08 |
| I(0) 误差 (实空间) i0_real_error | 8.2430e+06 |
| Rg (倒空间) rg_reciprocal | 48.49 Å |
| I(0) (倒空间) i0_reciprocal | 372100000.0000 |
| 解质量估计 total_estimate | 0.6599 |
| 解质量评级 solution_quality | REASONABLE a REASONABLE solution |
| P(r) 峰数 n_peaks | 2 |
| 主峰位置 r_peak_primary | 34.8 Å |
| 偏度 Skewness skewness | 0.319 |
| 峰度 Kurtosis kurtosis | -1.030 |
| 角度范围 angular_range | — – 0.1650 Å−1 |
| 当前正则化参数 α current_alpha | 0.0000 |
| 最高正则化参数 α highest_alpha | 120600000.0000 |
| 实空间数据点数 n_real_points | 34 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.120; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.420; Smooth: 0.795 |
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) 12 domains
SCOP 2.08 (4 domains)
| 结构域编号 domain_id | d2gcea_ |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.123 — CoA-transferase family III (CaiB/BaiF) |
| 超家族 Superfamily superfamily | c.123.1 — CoA-transferase family III (CaiB/BaiF) |
| 家族 Family family | c.123.1.1 — CoA-transferase family III (CaiB/BaiF) |
| 结构域编号 domain_id | d2gceb_ |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.123 — CoA-transferase family III (CaiB/BaiF) |
| 超家族 Superfamily superfamily | c.123.1 — CoA-transferase family III (CaiB/BaiF) |
| 家族 Family family | c.123.1.1 — CoA-transferase family III (CaiB/BaiF) |
| 结构域编号 domain_id | d2gcec_ |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.123 — CoA-transferase family III (CaiB/BaiF) |
| 超家族 Superfamily superfamily | c.123.1 — CoA-transferase family III (CaiB/BaiF) |
| 家族 Family family | c.123.1.1 — CoA-transferase family III (CaiB/BaiF) |
| 结构域编号 domain_id | d2gced_ |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.123 — CoA-transferase family III (CaiB/BaiF) |
| 超家族 Superfamily superfamily | c.123.1 — CoA-transferase family III (CaiB/BaiF) |
| 家族 Family family | c.123.1.1 — CoA-transferase family III (CaiB/BaiF) |
CATH v4.4 (8 domains)
| 结构域编号 domain_id | 2gceA01 |
| 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 | 10540 — Crotonobetainyl-coa:carnitine coa-transferase; domain 1 |
| 结构域编号 domain_id | 2gceA02 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 30 — 2-Layer Sandwich |
| 拓扑 Topology topology | 1540 — formyl-coa transferase, domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 10 — formyl-coa transferase, domain 3 |
| 结构域编号 domain_id | 2gceB01 |
| 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 | 10540 — Crotonobetainyl-coa:carnitine coa-transferase; domain 1 |
| 结构域编号 domain_id | 2gceB02 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 30 — 2-Layer Sandwich |
| 拓扑 Topology topology | 1540 — formyl-coa transferase, domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 10 — formyl-coa transferase, domain 3 |
| 结构域编号 domain_id | 2gceC01 |
| 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 | 10540 — Crotonobetainyl-coa:carnitine coa-transferase; domain 1 |
| 结构域编号 domain_id | 2gceC02 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 30 — 2-Layer Sandwich |
| 拓扑 Topology topology | 1540 — formyl-coa transferase, domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 10 — formyl-coa transferase, domain 3 |
| 结构域编号 domain_id | 2gceD01 |
| 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 | 10540 — Crotonobetainyl-coa:carnitine coa-transferase; domain 1 |
| 结构域编号 domain_id | 2gceD02 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 30 — 2-Layer Sandwich |
| 拓扑 Topology topology | 1540 — formyl-coa transferase, domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 10 — formyl-coa transferase, domain 3 |