1qzf

Crystal structure of DHFR-TS from Cryptosporidium hominis

Method: X-RAY DIFFRACTION D_max: 177.6 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	1qzf
沉积日期 deposition_date	2003-09-16
结构标题 title	Crystal structure of DHFR-TS from Cryptosporidium hominis
关键词 keywords	bifunctional enzyme, OXIDOREDUCTASE, TRANSFERASE; OXIDOREDUCTASE, TRANSFERASE
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	85.35 Å
回转半径 Rg (电子) rg_electron	88.82 Å
零角强度 I(0) i0	1383150000.00
分子量 molecular_weight	309680.0 kDa
排除体积 excluded_volume	386480 Å³
包络体积 envelope_volume	662210 Å³
水化壳体积 shell_volume	80123 Å³
包络直径 envelope_diameter	298.9 Å
壳层 Rg shell_rg	53.79 Å
包络 Rg envelope_rg	92.65 Å
形状 Rg shape_rg	88.81 Å
总 Rg total_rg	88.06 Å
总原子数 total_atoms	21790
残基数 n_residues	2595
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	177.6 Å
Rg (实空间) rg_real	61.85 Å
Rg 误差 (实空间) rg_real_error	0.71 Å
I(0) (实空间) i0_real	1.1730e+09
I(0) 误差 (实空间) i0_real_error	2.1240e+07
Rg (倒空间) rg_reciprocal	75.35 Å
I(0) (倒空间) i0_reciprocal	1346000000.0000
解质量估计 total_estimate	0.8033
解质量评级 solution_quality	GOOD a GOOD solution
P(r) 峰数 n_peaks	1
主峰位置 r_peak_primary	49.3 Å
偏度 Skewness skewness	0.414
峰度 Kurtosis kurtosis	-0.814
角度范围 angular_range	— – 0.0900 Å⁻¹
当前正则化参数 α current_alpha	1.3800
最高正则化参数 α highest_alpha	18530000.0000
实空间数据点数 n_real_points	19
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.044; Oscil: 0.933; Stabil: 0.927; Sysdev: 1.000; Positv: 1.000; Valcen: 0.861; Smooth: 0.000

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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 (6)

Entity 1 polymer

描述 description	bifunctional dihydrofolate reductase-thymidylate synthase
分子量 formula_weight	60262.5 kDa
EC 编号 ec_number	1.5.1.3, 2.1.1.45
来源方法 src_method	man
拷贝数 entity_count	5

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A,B,C,D,E
原子数 atom_count	22196

MSEKNVSIVVAASVLSSGIGINGQLPWSISEDLKFFSKITNNKCDSNKKNALIMGRKTWDSIGRRPLKNRIIVVISSSLPQDEADPNVVVFRNLEDSIENLMNDDSIENIFVCGGESIYRDALKDNFVDRIYLTRVALEDIEFDTYFPEIPETFLPVYMSQTFCTKNISYDFMIFEKQEKKTLQNCDPARGQLKSIDDTVDLLGEIFGIRKMGNRHKFPKEEIYNTPSIRFGREHYEFQYLDLLSRVLENGAYRENRTGISTYSIFGQMMRFDMRESFPLLTTKKVAIRSIFEELIWFIKGDTNGNHLIEKKVYIWSGNGSKEYLERIGLGHREENDLGPIYGFQWRHYNGEYKTMHDDYTGVGVDQLAKLIETLKNNPKDRRHILTAWNPSALSQMALPPCHVLSQYYVTNDNCLSCNLYQRSCDLGLGSPFNIASYAILTMMLAQVCGYEPGELAIFIGDAHIYENHLTQLKEQLSRTPRPFPQLKFKRKVENIEDFKWEDIELIGYYPYPTIKMDMAV

来源 Source

来源生物 organism	Cryptosporidium hominis
NCBI 分类编号 ncbi_taxonomy_id	237895
宿主生物 host_organism	Escherichia coli

Entity 2 non-polymer

描述 description	;2'-DEOXYURIDINE 5'-MONOPHOSPHATE ;
分子量 formula_weight	308.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	5

Entity 3 non-polymer

描述 description	10-PROPARGYL-5,8-DIDEAZAFOLIC ACID
分子量 formula_weight	477.5 kDa
来源方法 src_method	syn
拷贝数 entity_count	5

Entity 4 non-polymer

描述 description	FOLIC ACID
分子量 formula_weight	441.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	5

Entity 5 non-polymer

描述 description	NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
分子量 formula_weight	745.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	5

Entity 6 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	406

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6. 折叠分类 (SCOP + CATH) 25 domains

SCOP 2.08 (10 domains)

结构域编号 domain_id	d1qzfa1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.71 — Dihydrofolate reductase-like
超家族 Superfamily superfamily	c.71.1 — Dihydrofolate reductase-like
家族 Family family	c.71.1.1 — Dihydrofolate reductases

结构域编号 domain_id	d1qzfa2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.117 — Thymidylate synthase/dCMP hydroxymethylase
超家族 Superfamily superfamily	d.117.1 — Thymidylate synthase/dCMP hydroxymethylase
家族 Family family	d.117.1.1 — Thymidylate synthase/dCMP hydroxymethylase

结构域编号 domain_id	d1qzfb1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.71 — Dihydrofolate reductase-like
超家族 Superfamily superfamily	c.71.1 — Dihydrofolate reductase-like
家族 Family family	c.71.1.1 — Dihydrofolate reductases

结构域编号 domain_id	d1qzfb2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.117 — Thymidylate synthase/dCMP hydroxymethylase
超家族 Superfamily superfamily	d.117.1 — Thymidylate synthase/dCMP hydroxymethylase
家族 Family family	d.117.1.1 — Thymidylate synthase/dCMP hydroxymethylase

结构域编号 domain_id	d1qzfc1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.71 — Dihydrofolate reductase-like
超家族 Superfamily superfamily	c.71.1 — Dihydrofolate reductase-like
家族 Family family	c.71.1.1 — Dihydrofolate reductases

结构域编号 domain_id	d1qzfc2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.117 — Thymidylate synthase/dCMP hydroxymethylase
超家族 Superfamily superfamily	d.117.1 — Thymidylate synthase/dCMP hydroxymethylase
家族 Family family	d.117.1.1 — Thymidylate synthase/dCMP hydroxymethylase

结构域编号 domain_id	d1qzfd1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.71 — Dihydrofolate reductase-like
超家族 Superfamily superfamily	c.71.1 — Dihydrofolate reductase-like
家族 Family family	c.71.1.1 — Dihydrofolate reductases

结构域编号 domain_id	d1qzfd2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.117 — Thymidylate synthase/dCMP hydroxymethylase
超家族 Superfamily superfamily	d.117.1 — Thymidylate synthase/dCMP hydroxymethylase
家族 Family family	d.117.1.1 — Thymidylate synthase/dCMP hydroxymethylase

结构域编号 domain_id	d1qzfe1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.71 — Dihydrofolate reductase-like
超家族 Superfamily superfamily	c.71.1 — Dihydrofolate reductase-like
家族 Family family	c.71.1.1 — Dihydrofolate reductases

结构域编号 domain_id	d1qzfe2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.117 — Thymidylate synthase/dCMP hydroxymethylase
超家族 Superfamily superfamily	d.117.1 — Thymidylate synthase/dCMP hydroxymethylase
家族 Family family	d.117.1.1 — Thymidylate synthase/dCMP hydroxymethylase

CATH v4.4 (15 domains)

结构域编号 domain_id	1qzfA01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	430 — Dihydrofolate Reductase, subunit A
同源超家族 H-superfamily homologous superfamily	10 — Dihydrofolate Reductase, subunit A

结构域编号 domain_id	1qzfA02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

结构域编号 domain_id	1qzfA03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

结构域编号 domain_id	1qzfB01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	430 — Dihydrofolate Reductase, subunit A
同源超家族 H-superfamily homologous superfamily	10 — Dihydrofolate Reductase, subunit A

结构域编号 domain_id	1qzfB02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

结构域编号 domain_id	1qzfB03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

结构域编号 domain_id	1qzfC01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	430 — Dihydrofolate Reductase, subunit A
同源超家族 H-superfamily homologous superfamily	10 — Dihydrofolate Reductase, subunit A

结构域编号 domain_id	1qzfC02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

结构域编号 domain_id	1qzfC03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

结构域编号 domain_id	1qzfD01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	430 — Dihydrofolate Reductase, subunit A
同源超家族 H-superfamily homologous superfamily	10 — Dihydrofolate Reductase, subunit A

结构域编号 domain_id	1qzfD02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

结构域编号 domain_id	1qzfD03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

结构域编号 domain_id	1qzfE01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	430 — Dihydrofolate Reductase, subunit A
同源超家族 H-superfamily homologous superfamily	10 — Dihydrofolate Reductase, subunit A

结构域编号 domain_id	1qzfE02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

结构域编号 domain_id	1qzfE03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	572 — Thymidylate Synthase; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Thymidylate synthase/dCMP hydroxymethylase domain

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7. 引用文献 (1)

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晶胞边长 a length_a	214.900 Å
晶胞边长 b length_b	116.300 Å
晶胞边长 c length_c	219.700 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	95.23 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	20

空间群 space_group	C 1 2 1
空间群编号 int_tables_number	5
晶系 crystal_system	—

分辨率 resolution	2.800 Å
最低分辨率 resolution_low	29.800 Å
R 因子 r_factor	0.2250
R_work r_work	0.2250
R_free r_free	0.2450

fit	/app/data/saxs_computation/qz/1qzf/1qzf.fit
pddf	/app/data/pr_computation/qz/1qzf/1qzf.pr.out
profile	/app/data/saxs_computation/qz/1qzf/1qzf.dat