1rrj

Structural Mechanisms of Camptothecin Resistance by Mutations in Human Topoisomerase I

Method: X-RAY DIFFRACTION Dmax: 102.5 Å Quality: GOOD

SAXS 散射曲线 SAXS Profile

SAXS profile for 1rrj

P(r) 距离分布 P(r) Distribution

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

条目编号 entry_id1rrj
沉积日期 deposition_date2003-12-08
结构标题 titleStructural Mechanisms of Camptothecin Resistance by Mutations in Human Topoisomerase I
关键词 keywordshuman topoisomerase I, topotecan, camptothecin, ISOMERASE-DNA COMPLEX; ISOMERASE/DNA
实验方法 methodX-RAY DIFFRACTION

2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)

回转半径 Rg (Guinier) rg_guinier29.08
回转半径 Rg (电子) rg_electron28.98
零角强度 I(0) i0126217000.00
分子量 molecular_weight81152.0 kDa
排除体积 excluded_volume98388 ų
包络体积 envelope_volume132690 ų
水化壳体积 shell_volume38411 ų
包络直径 envelope_diameter108.8
壳层 Rg shell_rg35.69
包络 Rg envelope_rg29.48
形状 Rg shape_rg28.94
总 Rg total_rg29.70
总原子数 total_atoms5656
残基数 n_residues608
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

3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)

最大尺寸 Dmax dmax102.5
Rg (实空间) rg_real29.07
Rg 误差 (实空间) rg_real_error0.70
I(0) (实空间) i0_real1.2620e+08
I(0) 误差 (实空间) i0_real_error1.9880e+06
Rg (倒空间) rg_reciprocal29.08
I(0) (倒空间) i0_reciprocal126200000.0000
解质量估计 total_estimate0.8552
解质量评级 solution_quality GOOD a GOOD solution
P(r) 峰数 n_peaks2
主峰位置 r_peak_primary35.4
偏度 Skewness skewness0.420
峰度 Kurtosis kurtosis0.005
角度范围 angular_range— – 0.2750 −1
当前正则化参数 α current_alpha0.0000
最高正则化参数 α highest_alpha19240000.0000
实空间数据点数 n_real_points56
GNOM 版本 gnom_version4.1.3
质量判据 quality_criteria AN1: 0.000; Oscil: 0.722; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.962; Smooth: 0.984

4. 晶体学与实验 4. Crystallography & Experiment

5. 实体与聚合体信息 (6)

6. 折叠分类 (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

结构域编号 domain_idd1rrja1
类 Class classa — All alpha proteins
折叠类型 Fold folda.2 — Long alpha-hairpin
超家族 Superfamily superfamilya.2.8 — Eukaryotic DNA topoisomerase I, dispensable insert domain
家族 Family familya.2.8.1 — Eukaryotic DNA topoisomerase I, dispensable insert domain
结构域编号 domain_idd1rrja2
类 Class classd — Alpha and beta proteins (a+b)
折叠类型 Fold foldd.163 — DNA breaking-rejoining enzymes
超家族 Superfamily superfamilyd.163.1 — DNA breaking-rejoining enzymes
家族 Family familyd.163.1.2 — Eukaryotic DNA topoisomerase I, catalytic core
结构域编号 domain_idd1rrja3
类 Class classe — Multi-domain proteins (alpha and beta)
折叠类型 Fold folde.15 — Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment
超家族 Superfamily superfamilye.15.1 — Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment
家族 Family familye.15.1.1 — Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment

CATH v4.4 (4 domains)

结构域编号 domain_id1rrjA01
类 Class class2 — Mainly Beta
架构 Architecture architecture170 — Beta Complex
拓扑 Topology topology11 — DNA Topoisomerase I; domain 2
同源超家族 H-superfamily homologous superfamily10 — DNA Topoisomerase I, domain 2
结构域编号 domain_id1rrjA02
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology10 — Arc Repressor Mutant, subunit A
同源超家族 H-superfamily homologous superfamily41 — Yeast DNA topoisomerase - domain 1
结构域编号 domain_id1rrjA03
类 Class class3 — Alpha Beta
架构 Architecture architecture90 — Alpha-Beta Complex
拓扑 Topology topology15 — Topoisomerase I; Chain A, domain 3
同源超家族 H-superfamily homologous superfamily10 — Topoisomerase I; Chain A, domain 3
结构域编号 domain_id1rrjA04
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology132 — Topoisomerase I; Chain A, domain 4
同源超家族 H-superfamily homologous superfamily10

7. 引用文献 (1)

8. 文件与曲线 (10)