4i0h

SPR and structural analysis yield insight towards mechanism of inhibition of BACE inhibitors.

Method: X-RAY DIFFRACTION Dmax: 120.2 Å Quality: GOOD

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

Beta-secretase 1

Homo sapiens

UniProt P56817

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 57–453 未记录 1BL (2R)-5-{[(2S,3R)-4-{[1-(3-tert-butylphenyl)cyclohexyl]amino}-1-(3,5-difluorophenyl)-3-hydroxybutan-2-yl]amino}-2-hydroxy-5-oxopentanoic acid × 1 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, SITTING DROP;pH 5.3;291 K;Human BACE protein containing residues 57-453 and a C-terminal 6His-tag was concentrated to 6mg/ml in buffer 0.1M borate pH 8.5. Compound was added to give a final molar access of compound:protein of 8:1. Protein and compound were then incubated on ice for 1 hour. The drops were set up with a 1:1(v/v) ratio of protein to mother liquor in a total volume of 2 ul. Diffraction quality crystals of BACE in complex with compound was obtained by sitting-drop vapor diffusion method at 291K against a reservoir containing 0.1 M sodium acetate, 2% PEG8000, VAPOR DIFFUSION, SITTING DROP 分辨率 2.20 Å R-free 0.267
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 57–453 未记录 1BL (2R)-5-{[(2S,3R)-4-{[1-(3-tert-butylphenyl)cyclohexyl]amino}-1-(3,5-difluorophenyl)-3-hydroxybutan-2-yl]amino}-2-hydroxy-5-oxopentanoic acid × 1 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, SITTING DROP;pH 5.3;291 K;Human BACE protein containing residues 57-453 and a C-terminal 6His-tag was concentrated to 6mg/ml in buffer 0.1M borate pH 8.5. Compound was added to give a final molar access of compound:protein of 8:1. Protein and compound were then incubated on ice for 1 hour. The drops were set up with a 1:1(v/v) ratio of protein to mother liquor in a total volume of 2 ul. Diffraction quality crystals of BACE in complex with compound was obtained by sitting-drop vapor diffusion method at 291K against a reservoir containing 0.1 M sodium acetate, 2% PEG8000, VAPOR DIFFUSION, SITTING DROP 分辨率 2.20 Å R-free 0.267
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 57–453 未记录 1BL (2R)-5-{[(2S,3R)-4-{[1-(3-tert-butylphenyl)cyclohexyl]amino}-1-(3,5-difluorophenyl)-3-hydroxybutan-2-yl]amino}-2-hydroxy-5-oxopentanoic acid × 1 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, SITTING DROP;pH 5.3;291 K;Human BACE protein containing residues 57-453 and a C-terminal 6His-tag was concentrated to 6mg/ml in buffer 0.1M borate pH 8.5. Compound was added to give a final molar access of compound:protein of 8:1. Protein and compound were then incubated on ice for 1 hour. The drops were set up with a 1:1(v/v) ratio of protein to mother liquor in a total volume of 2 ul. Diffraction quality crystals of BACE in complex with compound was obtained by sitting-drop vapor diffusion method at 291K against a reservoir containing 0.1 M sodium acetate, 2% PEG8000, VAPOR DIFFUSION, SITTING DROP 分辨率 2.20 Å R-free 0.267

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 430 个其他 PDB 条目、734 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 BACE1_HUMAN
Isoform
PDB实体 1
链与序列区间 作者链 A; PDB构建体 2–398; UniProt 57–453 作者链 B; PDB构建体 2–398; UniProt 57–453 作者链 C; PDB构建体 2–398; UniProt 57–453

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 4i0h

P(r) 距离分布 P(r) Distribution

P(r) distribution for 4i0h
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2. 结构基本信息 2. Structure Basics

条目编号 entry_id4i0h
沉积日期 deposition_date2012-11-16
结构标题 titleSPR and structural analysis yield insight towards mechanism of inhibition of BACE inhibitors.
关键词 keywordsBACE, Asp protease, hydrolysis, hydrolase-hydrolase inhibitor complex; hydrolase/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_guinier36.73
回转半径 Rg (电子) rg_electron36.09
零角强度 I(0) i0234161000.00
分子量 molecular_weight126820.0 kDa
排除体积 excluded_volume159640 ų
包络体积 envelope_volume197770 ų
水化壳体积 shell_volume46122 ų
包络直径 envelope_diameter123.5
壳层 Rg shell_rg41.80
包络 Rg envelope_rg35.99
形状 Rg shape_rg36.11
总 Rg total_rg36.37
总原子数 total_atoms8953
残基数 n_residues1123
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 dmax120.2
Rg (实空间) rg_real36.72
Rg 误差 (实空间) rg_real_error0.97
I(0) (实空间) i0_real2.3420e+08
I(0) 误差 (实空间) i0_real_error4.0120e+06
Rg (倒空间) rg_reciprocal36.73
I(0) (倒空间) i0_reciprocal234200000.0000
解质量估计 total_estimate0.8902
解质量评级 solution_quality GOOD a GOOD solution
P(r) 峰数 n_peaks1
主峰位置 r_peak_primary36.4
偏度 Skewness skewness0.263
峰度 Kurtosis kurtosis-0.574
角度范围 angular_range— – 0.2150 −1
当前正则化参数 α current_alpha0.0000
最高正则化参数 α highest_alpha111400000.0000
实空间数据点数 n_real_points44
GNOM 版本 gnom_version4.1.3
质量判据 quality_criteria AN1: 0.000; Oscil: 0.910; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.952; Smooth: 0.885

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) 9 domains

SCOP 2.08 (3 domains)

结构域编号 domain_idd4i0ha_
类 Class classb — All beta proteins
折叠类型 Fold foldb.50 — Acid proteases
超家族 Superfamily superfamilyb.50.1 — Acid proteases
家族 Family familyb.50.1.2 — Pepsin-like
结构域编号 domain_idd4i0hb_
类 Class classb — All beta proteins
折叠类型 Fold foldb.50 — Acid proteases
超家族 Superfamily superfamilyb.50.1 — Acid proteases
家族 Family familyb.50.1.2 — Pepsin-like
结构域编号 domain_idd4i0hc_
类 Class classb — All beta proteins
折叠类型 Fold foldb.50 — Acid proteases
超家族 Superfamily superfamilyb.50.1 — Acid proteases
家族 Family familyb.50.1.2 — Pepsin-like

CATH v4.4 (6 domains)

结构域编号 domain_id4i0hA01
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology70 — Cathepsin D, subunit A; domain 1
同源超家族 H-superfamily homologous superfamily10 — Acid Proteases
结构域编号 domain_id4i0hA02
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology70 — Cathepsin D, subunit A; domain 1
同源超家族 H-superfamily homologous superfamily10 — Acid Proteases
结构域编号 domain_id4i0hB01
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology70 — Cathepsin D, subunit A; domain 1
同源超家族 H-superfamily homologous superfamily10 — Acid Proteases
结构域编号 domain_id4i0hB02
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology70 — Cathepsin D, subunit A; domain 1
同源超家族 H-superfamily homologous superfamily10 — Acid Proteases
结构域编号 domain_id4i0hC01
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology70 — Cathepsin D, subunit A; domain 1
同源超家族 H-superfamily homologous superfamily10 — Acid Proteases
结构域编号 domain_id4i0hC02
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology70 — Cathepsin D, subunit A; domain 1
同源超家族 H-superfamily homologous superfamily10 — Acid Proteases

8. 引用文献 (1)

9. 文件与曲线 (10)