2bl8
;1.6 Angstrom crystal structure of EntA-im: a bacterial immunity protein conferring immunity to the antimicrobial activity of the pediocin-like bacteriocin, enterocin A ;
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 | 2bl8 |
| 沉积日期 deposition_date | 2005-03-02 |
| 结构标题 title | ;1.6 Angstrom crystal structure of EntA-im: a bacterial immunity protein conferring immunity to the antimicrobial activity of the pediocin-like bacteriocin, enterocin A ; |
| 关键词 keywords | ENTEROCIN A, ORF2 PROTEIN, IMMUNITY, BACTERIAL PROTEIN; BACTERIAL 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 | 22.42 Å |
| 回转半径 Rg (电子) rg_electron | 21.59 Å |
| 零角强度 I(0) i0 | 16283400.00 |
| 分子量 molecular_weight | 31875.0 kDa |
| 排除体积 excluded_volume | 40491 ų |
| 包络体积 envelope_volume | 49742 ų |
| 水化壳体积 shell_volume | 19745 ų |
| 包络直径 envelope_diameter | 83.5 Å |
| 壳层 Rg shell_rg | 27.44 Å |
| 包络 Rg envelope_rg | 21.95 Å |
| 形状 Rg shape_rg | 21.59 Å |
| 总 Rg total_rg | 22.45 Å |
| 总原子数 total_atoms | 2258 |
| 残基数 n_residues | 265 |
| 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 | 79.9 Å |
| Rg (实空间) rg_real | 23.53 Å |
| Rg 误差 (实空间) rg_real_error | 0.28 Å |
| I(0) (实空间) i0_real | 1.6360e+07 |
| I(0) 误差 (实空间) i0_real_error | 1.8340e+05 |
| Rg (倒空间) rg_reciprocal | 22.44 Å |
| I(0) (倒空间) i0_reciprocal | 16280000.0000 |
| 解质量估计 total_estimate | 0.6362 |
| 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 | 23.0 Å |
| 偏度 Skewness skewness | 0.557 |
| 峰度 Kurtosis kurtosis | 0.014 |
| 角度范围 angular_range | — – 0.3550 Å−1 |
| 当前正则化参数 α current_alpha | 4.4900 |
| 最高正则化参数 α highest_alpha | 6087000.0000 |
| 实空间数据点数 n_real_points | 67 |
| GNOM 版本 gnom_version | 4.1.3 |
| 质量判据 quality_criteria | AN1: 0.000; Oscil: 0.780; Stabil: 0.876; Sysdev: 0.000; Positv: 1.000; Valcen: 0.915; Smooth: 0.458 |
4. 晶体学与实验 4. Crystallography & Experiment
5. 实体与聚合体信息 (3)
6. 折叠分类 (SCOP + CATH) 6 domains
SCOP 2.08 (3 domains)
| 结构域编号 domain_id | d2bl8a1 |
| 类 Class class | a — All alpha proteins |
| 折叠类型 Fold fold | a.29 — Bromodomain-like |
| 超家族 Superfamily superfamily | a.29.8 — Bacteriocin immunity protein-like |
| 家族 Family family | a.29.8.2 — EntA-Im |
| 结构域编号 domain_id | d2bl8b_ |
| 类 Class class | a — All alpha proteins |
| 折叠类型 Fold fold | a.29 — Bromodomain-like |
| 超家族 Superfamily superfamily | a.29.8 — Bacteriocin immunity protein-like |
| 家族 Family family | a.29.8.2 — EntA-Im |
| 结构域编号 domain_id | d2bl8c_ |
| 类 Class class | a — All alpha proteins |
| 折叠类型 Fold fold | a.29 — Bromodomain-like |
| 超家族 Superfamily superfamily | a.29.8 — Bacteriocin immunity protein-like |
| 家族 Family family | a.29.8.2 — EntA-Im |
CATH v4.4 (3 domains)
| 结构域编号 domain_id | 2bl8A00 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 20 — Up-down Bundle |
| 拓扑 Topology topology | 1440 — de novo design (two linked rop proteins) |
| 同源超家族 H-superfamily homologous superfamily | 50 — Ta0600-like |
| 结构域编号 domain_id | 2bl8B00 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 20 — Up-down Bundle |
| 拓扑 Topology topology | 1440 — de novo design (two linked rop proteins) |
| 同源超家族 H-superfamily homologous superfamily | 50 — Ta0600-like |
| 结构域编号 domain_id | 2bl8C00 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 20 — Up-down Bundle |
| 拓扑 Topology topology | 1440 — de novo design (two linked rop proteins) |
| 同源超家族 H-superfamily homologous superfamily | 50 — Ta0600-like |