1a99

PUTRESCINE RECEPTOR (POTF) FROM E. COLI

Method: X-RAY DIFFRACTION Dmax: 145.5 Å Quality: GOOD

1. 蛋白身份与相关结构 Protein Identity & Related Structures

PUTRESCINE-BINDING PROTEIN

Escherichia coli

UniProt P31133

当前结构中的状态

Assembly 聚集状态 构建体 突变与修饰 配体、离子与共同组分 实验方法与环境 结构质量
1 蛋白单体 单体 蛋白 × 1 PDB 声明:monomeric(1) 与蛋白拷贝数一致 链 A; UniProt 27–370 未记录 PUT 1,4-DIAMINOBUTANE × 1 X-RAY DIFFRACTION X-ray结晶条件:pH 5;PROTEIN WAS CRYSTALLIZED FROM 2M AMMONIUM SULFATE, 6% GLYCEROL, 200MM CACODYLATE BUFFER (PH 5), pH 5.0 分辨率 2.20 Å R-free 0.233
2 蛋白单体 单体 蛋白 × 1 PDB 声明:monomeric(1) 与蛋白拷贝数一致 链 B; UniProt 27–370 未记录 PUT 1,4-DIAMINOBUTANE × 1 X-RAY DIFFRACTION X-ray结晶条件:pH 5;PROTEIN WAS CRYSTALLIZED FROM 2M AMMONIUM SULFATE, 6% GLYCEROL, 200MM CACODYLATE BUFFER (PH 5), pH 5.0 分辨率 2.20 Å R-free 0.233
3 蛋白单体 单体 蛋白 × 1 PDB 声明:monomeric(1) 与蛋白拷贝数一致 链 C; UniProt 27–370 未记录 PUT 1,4-DIAMINOBUTANE × 1 X-RAY DIFFRACTION X-ray结晶条件:pH 5;PROTEIN WAS CRYSTALLIZED FROM 2M AMMONIUM SULFATE, 6% GLYCEROL, 200MM CACODYLATE BUFFER (PH 5), pH 5.0 分辨率 2.20 Å R-free 0.233
4 蛋白单体 单体 蛋白 × 1 PDB 声明:monomeric(1) 与蛋白拷贝数一致 链 D; UniProt 27–370 未记录 PUT 1,4-DIAMINOBUTANE × 1 X-RAY DIFFRACTION X-ray结晶条件:pH 5;PROTEIN WAS CRYSTALLIZED FROM 2M AMMONIUM SULFATE, 6% GLYCEROL, 200MM CACODYLATE BUFFER (PH 5), pH 5.0 分辨率 2.20 Å R-free 0.233

数据库中的同蛋白其他状态

以下每一行都是同一 UniProt 蛋白在另一个 PDB 条目中的 biological assembly, “相对当前条目”直接指出证据层面的不同;没有差异标签表示当前已读取字段一致。

共 14 个其他 PDB 条目、23 个 assembly。 打开独立比较页并筛选聚集状态

查看构建体与数据证据
UniProt名称 POTF_ECOLI
Isoform
PDB实体 1
链与序列区间 作者链 A; PDB构建体 1–344; UniProt 27–370 作者链 B; PDB构建体 1–344; UniProt 27–370 作者链 C; PDB构建体 1–344; UniProt 27–370 作者链 D; PDB构建体 1–344; UniProt 27–370

页面优先展示蛋白身份、当前 assembly、共同组分、聚集状态和跨 PDB 结构链接。 链映射与序列区间收在“数据证据”中;数据库内部编号、导入时间和 assembly 操作表达式仅用于维护,因此不在读者页面展示。

SAXS 散射曲线 SAXS Profile

SAXS profile for 1a99

P(r) 距离分布 P(r) Distribution

P(r) distribution for 1a99
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2. 结构基本信息 2. Structure Basics

条目编号 entry_id1a99
沉积日期 deposition_date1998-04-17
结构标题 titlePUTRESCINE RECEPTOR (POTF) FROM E. COLI
关键词 keywordsBINDING PROTEIN, TRANSPORT, PERIPLASMIC PUTRESCINE BINDING PROTEIN (POTF); BINDING PROTEIN
实验方法 methodX-RAY DIFFRACTION

3. SAXS 参数 (CRYSOL 理论计算) 3. SAXS Parameters (CRYSOL)

回转半径 Rg (Guinier) rg_guinier44.78
回转半径 Rg (电子) rg_electron44.53
零角强度 I(0) i0318221000.00
分子量 molecular_weight151970.0 kDa
排除体积 excluded_volume192010 ų
包络体积 envelope_volume250510 ų
水化壳体积 shell_volume47762 ų
包络直径 envelope_diameter142.6
壳层 Rg shell_rg48.02
包络 Rg envelope_rg43.71
形状 Rg shape_rg44.48
总 Rg total_rg44.85
总原子数 total_atoms10744
残基数 n_residues1364
球谐函数阶数 n_harmonics20
q 范围 q_range— – 0.5000 −1
数据点数 n_points101
壳层类型 shell_typedirectional
溶剂电子密度 solvent_density0.3340 e/ų
壳层衬度 contrast_shell0.0300 e/ų
CRYSOL 版本 crysol_version4.1.3

4. P(r) 距离分布 (GNOM 反演) 4. P(r) Analysis (GNOM)

最大尺寸 Dmax dmax145.5
Rg (实空间) rg_real44.77
Rg 误差 (实空间) rg_real_error1.25
I(0) (实空间) i0_real3.1820e+08
I(0) 误差 (实空间) i0_real_error6.4010e+06
Rg (倒空间) rg_reciprocal44.78
I(0) (倒空间) i0_reciprocal318200000.0000
解质量估计 total_estimate0.8788
解质量评级 solution_quality GOOD a GOOD solution
P(r) 峰数 n_peaks2
主峰位置 r_peak_primary66.5
偏度 Skewness skewness0.138
峰度 Kurtosis kurtosis-0.779
角度范围 angular_range— – 0.1750 −1
当前正则化参数 α current_alpha0.0001
最高正则化参数 α highest_alpha37970000.0000
实空间数据点数 n_real_points36
GNOM 版本 gnom_version4.1.3
质量判据 quality_criteria AN1: 0.000; Oscil: 0.874; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.901; Smooth: 0.895

5. 晶体学与实验 5. Crystallography & Experiment

6. 实体与聚合物信息 Entities & Polymers (3)

7. 折叠分类 (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

结构域编号 domain_idd1a99a_
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.94 — Periplasmic binding protein-like II
超家族 Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
家族 Family familyc.94.1.1 — Phosphate binding protein-like
结构域编号 domain_idd1a99b_
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.94 — Periplasmic binding protein-like II
超家族 Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
家族 Family familyc.94.1.1 — Phosphate binding protein-like
结构域编号 domain_idd1a99c_
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.94 — Periplasmic binding protein-like II
超家族 Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
家族 Family familyc.94.1.1 — Phosphate binding protein-like
结构域编号 domain_idd1a99d_
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.94 — Periplasmic binding protein-like II
超家族 Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
家族 Family familyc.94.1.1 — Phosphate binding protein-like

CATH v4.4 (8 domains)

结构域编号 domain_id1a99A01
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II
结构域编号 domain_id1a99A02
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II
结构域编号 domain_id1a99B01
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II
结构域编号 domain_id1a99B02
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II
结构域编号 domain_id1a99C01
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II
结构域编号 domain_id1a99C02
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II
结构域编号 domain_id1a99D01
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II
结构域编号 domain_id1a99D02
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II

8. 引用文献 (3)

9. 文件与曲线 (10)