SAXSdb — 1p4r

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	1p4r
沉积日期 deposition_date	2003-04-23
结构标题 title	Crystal Structure of Human ATIC in complex with folate-based inhibitor BW1540U88UD
关键词 keywords	antifolate, ATIC, purine biosynthesis, BW1540U88UD, TRANSFERASE, HYDROLASE; TRANSFERASE, HYDROLASE
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	33.74 Å
回转半径 Rg (电子) rg_electron	33.34 Å
零角强度 I(0) i0	256719000.00
分子量 molecular_weight	129010.0 kDa
排除体积 excluded_volume	161420 Å³
包络体积 envelope_volume	193150 Å³
水化壳体积 shell_volume	47772 Å³
包络直径 envelope_diameter	111.5 Å
壳层 Rg shell_rg	40.66 Å
包络 Rg envelope_rg	33.53 Å
形状 Rg shape_rg	33.34 Å
总 Rg total_rg	33.83 Å
总原子数 total_atoms	9071
残基数 n_residues	1177
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	110.0 Å
Rg (实空间) rg_real	33.77 Å
Rg 误差 (实空间) rg_real_error	0.76 Å
I(0) (实空间) i0_real	2.5670e+08
I(0) 误差 (实空间) i0_real_error	3.8950e+06
Rg (倒空间) rg_reciprocal	33.75 Å
I(0) (倒空间) i0_reciprocal	256700000.0000
解质量估计 total_estimate	0.8850
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	35.1 Å
偏度 Skewness skewness	0.369
峰度 Kurtosis kurtosis	-0.506
角度范围 angular_range	— – 0.2350 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	116200000.0000
实空间数据点数 n_real_points	48
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.868; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.967; Smooth: 0.929

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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 purine biosynthesis protein PURH
分子量 formula_weight	64693.7 kDa
EC 编号 ec_number	2.1.2.3, 3.5.4.10
来源方法 src_method	man
拷贝数 entity_count	2

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A,B
原子数 atom_count	9470

MAPGQLALFSVSDKTGLVEFARNLTALGLNLVASGGTAKALRDAGLAVRDVSELTGFPEMLGGRVKTLHPAVHAGILARNIPEDNADMARLDFNLIRVVACNLYPFVKTVASPGVTVEEAVEQIDIGGVTLLRAAAKNHARVTVVCEPEDYVVVSTEMQSSESKDTSLETRRQLALKAFTHTAQYDEAISDYFRKQYSKGVSQMPLRYGMNPHQTPAQLYTLQPKLPITVLNGAPGFINLCDALNAWQLVKELKEALGIPAAASFKHVSPAGAAVGIPLSEDEAKVCMVYDLYKTLTPISAAYARARGADRMSSFGDFVALSDVCDVPTAKIISREVSDGIIAPGYEEEALTILSKKKNGNYCVLQMDQSYKPDENEVRTLFGLHLSQKRNNGVVDKSLFSNVVTKNKDLPESALRDLIVATIAVKYTQSNSVCYAKNGQVIGIGAGQQSRIHCTRLAGDKANYWWLRHHPQVLSMKFKTGVKRAEISNAIDQYVTGTIGEDEDLIKWKALFEEVPELLTEAEKKEWVEKLTEVSISSDAFFPFRDNVDRAKRSGVAYIAAPSGSAADKVVIEACDELGIILAHTNLRLFHH

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	Escherichia coli

Entity 2 non-polymer

描述 description	POTASSIUM ION
分子量 formula_weight	39.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 3 non-polymer

描述 description	AMINOIMIDAZOLE 4-CARBOXAMIDE RIBONUCLEOTIDE
分子量 formula_weight	338.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 4 non-polymer

描述 description	N-[(S)-(4-{[(2-AMINO-4-HYDROXYQUINAZOLIN-6-YL)(DIHYDROXY)-LAMBDA~4~-SULFANYL]AMINO}PHENYL)(HYDROXY)METHYL]-L-GLUTAMIC ACID
分子量 formula_weight	493.5 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 5 non-polymer

描述 description	XANTHOSINE-5'-MONOPHOSPHATE
分子量 formula_weight	365.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

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	399

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6. 折叠分类 (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

结构域编号 domain_id	d1p4ra1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.24 — Methylglyoxal synthase-like
超家族 Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
家族 Family family	c.24.1.3 — Inosicase

结构域编号 domain_id	d1p4ra2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.97 — Cytidine deaminase-like
超家族 Superfamily superfamily	c.97.1 — Cytidine deaminase-like
家族 Family family	c.97.1.4 — AICAR transformylase domain of bifunctional purine biosynthesis enzyme ATIC

结构域编号 domain_id	d1p4rb1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.24 — Methylglyoxal synthase-like
超家族 Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
家族 Family family	c.24.1.3 — Inosicase

结构域编号 domain_id	d1p4rb2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.97 — Cytidine deaminase-like
超家族 Superfamily superfamily	c.97.1 — Cytidine deaminase-like
家族 Family family	c.97.1.4 — AICAR transformylase domain of bifunctional purine biosynthesis enzyme ATIC

CATH v4.4 (8 domains)

结构域编号 domain_id	1p4rA01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	287 — Helix Hairpins
同源超家族 H-superfamily homologous superfamily	440 —

结构域编号 domain_id	1p4rA02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	140 — Cytidine Deaminase; domain 2
同源超家族 H-superfamily homologous superfamily	20 — AICAR transformylase, duplication domain

结构域编号 domain_id	1p4rA03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	140 — Cytidine Deaminase; domain 2
同源超家族 H-superfamily homologous superfamily	20 — AICAR transformylase, duplication domain

结构域编号 domain_id	1p4rA04
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

结构域编号 domain_id	1p4rB01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	287 — Helix Hairpins
同源超家族 H-superfamily homologous superfamily	440 —

结构域编号 domain_id	1p4rB02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	140 — Cytidine Deaminase; domain 2
同源超家族 H-superfamily homologous superfamily	20 — AICAR transformylase, duplication domain

结构域编号 domain_id	1p4rB03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	140 — Cytidine Deaminase; domain 2
同源超家族 H-superfamily homologous superfamily	20 — AICAR transformylase, duplication domain

结构域编号 domain_id	1p4rB04
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

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7. 引用文献 (1)

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晶胞边长 a length_a	83.595 Å
晶胞边长 b length_b	93.035 Å
晶胞边长 c length_c	164.192 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	90.00 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	8

空间群 space_group	P 21 21 21
空间群编号 int_tables_number	19
晶系 crystal_system	—

分辨率 resolution	2.550 Å
最低分辨率 resolution_low	30.000 Å
R 因子 r_factor	—
R_work r_work	0.1890
R_free r_free	0.2570

fit	/app/data/saxs_computation/p4/1p4r/1p4r.fit
pddf	/app/data/pr_computation/p4/1p4r/1p4r.pr.out
profile	/app/data/saxs_computation/p4/1p4r/1p4r.dat

Crystal Structure of Human ATIC in complex with folate-based inhibitor BW1540U88UD

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution