3qi0

Structural, thermodynamic and kinetic analysis of the picomolar binding affinity interaction of the beta-lactamase inhibitor protein-II (BLIP-II) with class A beta-lactamases

Method: X-RAY DIFFRACTION Dmax: 120.8 Å Quality: REASONABLE

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

Beta-lactamase inhibitory protein II

Streptomyces exfoliatus

UniProt O87916

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 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 7 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243
10 蛋白同源多聚体 同源多聚体 蛋白 × 6 PDB 声明:hexameric(6) 与蛋白拷贝数一致 链 A; UniProt 41–311 链 B; UniProt 41–311 链 C; UniProt 41–311 链 D; UniProt 41–311 链 E; UniProt 41–311 链 F; UniProt 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 35 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243
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 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 8 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243
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 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 4 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243
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 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 6 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243
5 蛋白单体 单体 蛋白 × 1 PDB 声明:monomeric(1) 与蛋白拷贝数一致 链 E; UniProt 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 8 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243
6 蛋白单体 单体 蛋白 × 1 PDB 声明:monomeric(1) 与蛋白拷贝数一致 链 F; UniProt 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 2 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243
7 蛋白同源多聚体 同源多聚体 蛋白 × 2 PDB 声明:dimeric(2) 与蛋白拷贝数一致 链 D; UniProt 41–311 链 F; UniProt 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 8 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243
8 蛋白同源多聚体 同源多聚体 蛋白 × 2 PDB 声明:dimeric(2) 与蛋白拷贝数一致 链 B; UniProt 41–311 链 C; UniProt 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 12 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243
9 蛋白同源多聚体 同源多聚体 蛋白 × 2 PDB 声明:dimeric(2) 与蛋白拷贝数一致 链 A; UniProt 41–311 链 E; UniProt 41–311 片段:unp residues 41-311 SO4 SULFATE ION × 15 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;2.0 M ammonium sulfate , pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K 分辨率 2.80 Å R-free 0.243

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 3 个其他 PDB 条目、3 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 O87916_STREX
Isoform
PDB实体 1
链与序列区间 作者链 A; PDB构建体 1–271; UniProt 41–311 作者链 B; PDB构建体 1–271; UniProt 41–311 作者链 C; PDB构建体 1–271; UniProt 41–311 作者链 D; PDB构建体 1–271; UniProt 41–311 作者链 E; PDB构建体 1–271; UniProt 41–311 作者链 F; PDB构建体 1–271; UniProt 41–311

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 3qi0

P(r) 距离分布 P(r) Distribution

P(r) distribution for 3qi0
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2. 结构基本信息 2. Structure Basics

条目编号 entry_id3qi0
沉积日期 deposition_date2011-01-26
结构标题 titleStructural, thermodynamic and kinetic analysis of the picomolar binding affinity interaction of the beta-lactamase inhibitor protein-II (BLIP-II) with class A beta-lactamases
关键词 keywordsenzyme-inhibitor complex, BSGC, beta-propeller, beta-lactamase, protein:protein interaction, HYDROLASE INHIBITOR; HYDROLASE INHIBITOR
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_guinier37.79
回转半径 Rg (电子) rg_electron37.37
零角强度 I(0) i0458653000.00
分子量 molecular_weight165110.0 kDa
排除体积 excluded_volume202500 ų
包络体积 envelope_volume258110 ų
水化壳体积 shell_volume57213 ų
包络直径 envelope_diameter133.6
壳层 Rg shell_rg43.68
包络 Rg envelope_rg36.82
形状 Rg shape_rg37.31
总 Rg total_rg37.93
总原子数 total_atoms11618
残基数 n_residues1611
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 dmax120.8
Rg (实空间) rg_real37.74
Rg 误差 (实空间) rg_real_error0.85
I(0) (实空间) i0_real4.5870e+08
I(0) 误差 (实空间) i0_real_error7.3770e+06
Rg (倒空间) rg_reciprocal37.78
I(0) (倒空间) i0_reciprocal458700000.0000
解质量估计 total_estimate0.6666
解质量评级 solution_quality REASONABLE a REASONABLE solution
P(r) 峰数 n_peaks2
主峰位置 r_peak_primary46.0
偏度 Skewness skewness0.323
峰度 Kurtosis kurtosis-0.266
角度范围 angular_range— – 0.2100 −1
当前正则化参数 α current_alpha0.0000
最高正则化参数 α highest_alpha99280000.0000
实空间数据点数 n_real_points43
GNOM 版本 gnom_version4.1.3
质量判据 quality_criteria AN1: 0.000; Oscil: 0.910; Stabil: 1.000; Sysdev: 0.080; Positv: 1.000; Valcen: 0.996; Smooth: 0.694

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 (6 domains)

结构域编号 domain_idd3qi0a_
类 Class classb — All beta proteins
折叠类型 Fold foldb.69 — 7-bladed beta-propeller
超家族 Superfamily superfamilyb.69.5 — RCC1/BLIP-II
家族 Family familyb.69.5.2 — beta-lactamase inhibitor protein-II, BLIP-II
结构域编号 domain_idd3qi0b_
类 Class classb — All beta proteins
折叠类型 Fold foldb.69 — 7-bladed beta-propeller
超家族 Superfamily superfamilyb.69.5 — RCC1/BLIP-II
家族 Family familyb.69.5.2 — beta-lactamase inhibitor protein-II, BLIP-II
结构域编号 domain_idd3qi0c_
类 Class classb — All beta proteins
折叠类型 Fold foldb.69 — 7-bladed beta-propeller
超家族 Superfamily superfamilyb.69.5 — RCC1/BLIP-II
家族 Family familyb.69.5.2 — beta-lactamase inhibitor protein-II, BLIP-II
结构域编号 domain_idd3qi0d_
类 Class classb — All beta proteins
折叠类型 Fold foldb.69 — 7-bladed beta-propeller
超家族 Superfamily superfamilyb.69.5 — RCC1/BLIP-II
家族 Family familyb.69.5.2 — beta-lactamase inhibitor protein-II, BLIP-II
结构域编号 domain_idd3qi0e_
类 Class classb — All beta proteins
折叠类型 Fold foldb.69 — 7-bladed beta-propeller
超家族 Superfamily superfamilyb.69.5 — RCC1/BLIP-II
家族 Family familyb.69.5.2 — beta-lactamase inhibitor protein-II, BLIP-II
结构域编号 domain_idd3qi0f_
类 Class classb — All beta proteins
折叠类型 Fold foldb.69 — 7-bladed beta-propeller
超家族 Superfamily superfamilyb.69.5 — RCC1/BLIP-II
家族 Family familyb.69.5.2 — beta-lactamase inhibitor protein-II, BLIP-II

CATH v4.4 (6 domains)

结构域编号 domain_id3qi0A00
类 Class class2 — Mainly Beta
架构 Architecture architecture130 — 7 Propeller
拓扑 Topology topology10 — Methylamine Dehydrogenase; Chain H
同源超家族 H-superfamily homologous superfamily30 — Regulator of chromosome condensation 1/beta-lactamase-inhibitor protein II
结构域编号 domain_id3qi0B00
类 Class class2 — Mainly Beta
架构 Architecture architecture130 — 7 Propeller
拓扑 Topology topology10 — Methylamine Dehydrogenase; Chain H
同源超家族 H-superfamily homologous superfamily30 — Regulator of chromosome condensation 1/beta-lactamase-inhibitor protein II
结构域编号 domain_id3qi0C00
类 Class class2 — Mainly Beta
架构 Architecture architecture130 — 7 Propeller
拓扑 Topology topology10 — Methylamine Dehydrogenase; Chain H
同源超家族 H-superfamily homologous superfamily30 — Regulator of chromosome condensation 1/beta-lactamase-inhibitor protein II
结构域编号 domain_id3qi0D00
类 Class class2 — Mainly Beta
架构 Architecture architecture130 — 7 Propeller
拓扑 Topology topology10 — Methylamine Dehydrogenase; Chain H
同源超家族 H-superfamily homologous superfamily30 — Regulator of chromosome condensation 1/beta-lactamase-inhibitor protein II
结构域编号 domain_id3qi0E00
类 Class class2 — Mainly Beta
架构 Architecture architecture130 — 7 Propeller
拓扑 Topology topology10 — Methylamine Dehydrogenase; Chain H
同源超家族 H-superfamily homologous superfamily30 — Regulator of chromosome condensation 1/beta-lactamase-inhibitor protein II
结构域编号 domain_id3qi0F00
类 Class class2 — Mainly Beta
架构 Architecture architecture130 — 7 Propeller
拓扑 Topology topology10 — Methylamine Dehydrogenase; Chain H
同源超家族 H-superfamily homologous superfamily30 — Regulator of chromosome condensation 1/beta-lactamase-inhibitor protein II

8. 引用文献 (1)

9. 文件与曲线 (10)