1k4t

HUMAN DNA TOPOISOMERASE I (70 KDA) IN COMPLEX WITH THE POISON TOPOTECAN AND COVALENT COMPLEX WITH A 22 BASE PAIR DNA DUPLEX

Method: X-RAY DIFFRACTION D_max: 102.0 Å Quality: GOOD

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution

下载 Download SAXS (.dat) P(r) (.pr.out) CIF

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	1k4t
沉积日期 deposition_date	2001-10-08
结构标题 title	HUMAN DNA TOPOISOMERASE I (70 KDA) IN COMPLEX WITH THE POISON TOPOTECAN AND COVALENT COMPLEX WITH A 22 BASE PAIR DNA DUPLEX
关键词 keywords	Complex (Isomerase-DNA), DNA, Topoisomerase I, drug, poison, ISOMERASE-DNA complex; ISOMERASE/DNA
实验方法 method	X-RAY DIFFRACTION

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

回转半径 Rg (Guinier) rg_guinier	29.02 Å
回转半径 Rg (电子) rg_electron	29.01 Å
零角强度 I(0) i0	126918000.00
分子量 molecular_weight	80924.0 kDa
排除体积 excluded_volume	97834 Å³
包络体积 envelope_volume	130100 Å³
水化壳体积 shell_volume	37911 Å³
包络直径 envelope_diameter	108.6 Å
壳层 Rg shell_rg	35.59 Å
包络 Rg envelope_rg	29.28 Å
形状 Rg shape_rg	28.99 Å
总 Rg total_rg	29.63 Å
总原子数 total_atoms	5624
残基数 n_residues	607
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/Å³
壳层衬度 contrast_shell	0.0300 e/Å³
CRYSOL 版本 crysol_version	4.1.3

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

最大尺寸 Dmax dmax	102.0 Å
Rg (实空间) rg_real	29.01 Å
Rg 误差 (实空间) rg_real_error	0.72 Å
I(0) (实空间) i0_real	1.2690e+08
I(0) 误差 (实空间) i0_real_error	1.9440e+06
Rg (倒空间) rg_reciprocal	29.02 Å
I(0) (倒空间) i0_reciprocal	126900000.0000
解质量估计 total_estimate	0.8568
解质量评级 solution_quality	GOOD a GOOD solution
P(r) 峰数 n_peaks	2
主峰位置 r_peak_primary	35.2 Å
偏度 Skewness skewness	0.416
峰度 Kurtosis kurtosis	0.004
角度范围 angular_range	— – 0.2750 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	18550000.0000
实空间数据点数 n_real_points	56
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.728; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.965; Smooth: 0.986

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

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5. 实体与聚合体信息 (9)

Entity 1 polymer

描述 description	5'-D(APAPAPAPAPGPAPCPTPT)-3'
分子量 formula_weight	3061.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

聚合体 Polymer

聚合体类型 type	polydeoxyribonucleotide
链编号 strand_id	B
原子数 atom_count	5883

AAAAAGACTT

Entity 2 polymer

描述 description	5'-D((TGP)PGPAPAPAPAPAPTPTPTPTPT)-3'
分子量 formula_weight	3716.5 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

聚合体 Polymer

聚合体类型 type	polydeoxyribonucleotide
链编号 strand_id	C

GGAAAAATTTTT

Entity 3 polymer

描述 description	5'-D(APAPAPAPAPTPTPTPTPTPCPCPAPAPGPTPCPTPTPTPTPT)-3'
分子量 formula_weight	6690.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

聚合体 Polymer

聚合体类型 type	polydeoxyribonucleotide
链编号 strand_id	D

AAAAATTTTTCCAAGTCTTTTT

Entity 4 polymer

描述 description	DNA topoisomerase I
分子量 formula_weight	70248.0 kDa
EC 编号 ec_number	5.99.1.2
来源方法 src_method	man
拷贝数 entity_count	1

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A

KKPKNKDKDKKVPEPDNKKKKPKKEEEQKWKWWEEERYPEGIKWKFLEHKGPVFAPPYEPLPENVKFYYDGKVMKLSPKAEEVATFFAKMLDHEYTTKEIFRKNFFKDWRKEMTNEEKNIITNLSKCDFTQMSQYFKAQTEARKQMSKEEKLKIKEENEKLLKEYGFCIMDNHKERIANFKIEPPGLFRGRGNHPKMGMLKRRIMPEDIIINCSKDAKVPSPPPGHKWKEVRHDNKVTWLVSWTENIQGSIKYIMLNPSSRIKGEKDWQKYETARRLKKCVDKIRNQYREDWKSKEMKVRQRAVALYFIDKLALRAGNEKEEGETADTVGCCSLRVEHINLHPELDGQEYVVEFDFLGKDSIRYYNKVPVEKRVFKNLQLFMENKQPEDDLFDRLNTGILNKHLQDLMEGLTAKVFRTYNASITLQQQLKELTAPDENIPAKILSYNRANRAVAILCNHQRAPPKTFEKSMMNLQTKIDAKKEQLADARRDLKSAKADAKVMKDAKTKKVVESKKKAVQRLEEQLMKLEVQATDREENKQIALGTSKLNYLDPRITVAWCKKWGVPIEKIYNKTQREKFAWAIDMADEDYEF

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI 分类编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Spodoptera frugiperda

Entity 5 non-polymer

描述 description	2-(1-DIMETHYLAMINOMETHYL-2-HYDROXY-8-HYDROXYMETHYL-9-OXO-9,11-DIHYDRO-INDOLIZINO[1,2-B]QUINOLIN-7-YL)-2-HYDROXY-BUTYRIC ACID
分子量 formula_weight	439.5 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 6 non-polymer

描述 description	(S)-10-[(DIMETHYLAMINO)METHYL]-4-ETHYL-4,9-DIHYDROXY-1H-PYRANO[3',4':6,7]INOLIZINO[1,2-B]-QUINOLINE-3,14(4H,12H)-DIONE
分子量 formula_weight	421.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 7 non-polymer

描述 description	MERCURY (II) ION
分子量 formula_weight	200.6 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 8 non-polymer

描述 description	TETRAETHYLENE GLYCOL
分子量 formula_weight	194.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 9 water

描述 description	water
分子量 formula_weight	18.0 kDa
来源方法 src_method	nat
拷贝数 entity_count	227

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6. 折叠分类 (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

结构域编号 domain_id	d1k4ta1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.2 — Long alpha-hairpin
超家族 Superfamily superfamily	a.2.8 — Eukaryotic DNA topoisomerase I, dispensable insert domain
家族 Family family	a.2.8.1 — Eukaryotic DNA topoisomerase I, dispensable insert domain

结构域编号 domain_id	d1k4ta2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.163 — DNA breaking-rejoining enzymes
超家族 Superfamily superfamily	d.163.1 — DNA breaking-rejoining enzymes
家族 Family family	d.163.1.2 — Eukaryotic DNA topoisomerase I, catalytic core

结构域编号 domain_id	d1k4ta3
类 Class class	e — Multi-domain proteins (alpha and beta)
折叠类型 Fold fold	e.15 — Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment
超家族 Superfamily superfamily	e.15.1 — Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment
家族 Family family	e.15.1.1 — Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment

CATH v4.4 (4 domains)

结构域编号 domain_id	1k4tA01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	170 — Beta Complex
拓扑 Topology topology	11 — DNA Topoisomerase I; domain 2
同源超家族 H-superfamily homologous superfamily	10 — DNA Topoisomerase I, domain 2

结构域编号 domain_id	1k4tA02
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	10 — Arc Repressor Mutant, subunit A
同源超家族 H-superfamily homologous superfamily	41 — Yeast DNA topoisomerase - domain 1

结构域编号 domain_id	1k4tA03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	15 — Topoisomerase I; Chain A, domain 3
同源超家族 H-superfamily homologous superfamily	10 — Topoisomerase I; Chain A, domain 3

结构域编号 domain_id	1k4tA04
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	132 — Topoisomerase I; Chain A, domain 4
同源超家族 H-superfamily homologous superfamily	10 —

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7. 引用文献 (1)

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晶胞边长 a length_a	57.093 Å
晶胞边长 b length_b	116.260 Å
晶胞边长 c length_c	75.217 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	94.16 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	2

空间群 space_group	P 1 21 1
空间群编号 int_tables_number	4
晶系 crystal_system	—

分辨率 resolution	2.100 Å
最低分辨率 resolution_low	19.890 Å
R 因子 r_factor	—
R_work r_work	0.2290
R_free r_free	0.2690

fit	/app/data/saxs_computation/k4/1k4t/1k4t.fit
pddf	/app/data/pr_computation/k4/1k4t/1k4t.pr.out
profile	/app/data/saxs_computation/k4/1k4t/1k4t.dat

HUMAN DNA TOPOISOMERASE I (70 KDA) IN COMPLEX WITH THE POISON TOPOTECAN AND COVALENT COMPLEX WITH A 22 BASE PAIR DNA DUPLEX

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

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

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

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

晶胞参数 Unit Cell

对称性 Symmetry

精修参数 Refinement

衍射实验 Diffraction

5. 实体与聚合体信息 (9)

Entity 1 polymer

聚合体 Polymer

Entity 2 polymer

聚合体 Polymer

Entity 3 polymer

聚合体 Polymer

Entity 4 polymer

聚合体 Polymer

来源 Source

Entity 5 non-polymer

Entity 6 non-polymer

Entity 7 non-polymer

Entity 8 non-polymer

Entity 9 water

6. 折叠分类 (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

CATH v4.4 (4 domains)

7. 引用文献 (1)

8. 文件与曲线 (10)

Files (7)

Curves (3)