2c20

CRYSTAL STRUCTURE OF UDP-GLUCOSE 4-EPIMERASE

Method: X-RAY DIFFRACTION D_max: 208.0 Å Quality: REASONABLE

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	2c20
沉积日期 deposition_date	2005-09-22
结构标题 title	CRYSTAL STRUCTURE OF UDP-GLUCOSE 4-EPIMERASE
关键词 keywords	CARBOHYDRATE METABOLISM, GALACTOSE METABOLISM, ISOMERASE, NAD, SPINE; ISOMERASE
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	68.79 Å
回转半径 Rg (电子) rg_electron	69.87 Å
零角强度 I(0) i0	757425000.00
分子量 molecular_weight	224710.0 kDa
排除体积 excluded_volume	279040 Å³
包络体积 envelope_volume	468600 Å³
水化壳体积 shell_volume	67322 Å³
包络直径 envelope_diameter	217.1 Å
壳层 Rg shell_rg	51.07 Å
包络 Rg envelope_rg	66.36 Å
形状 Rg shape_rg	69.87 Å
总 Rg total_rg	69.32 Å
总原子数 total_atoms	15816
残基数 n_residues	1974
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	208.0 Å
Rg (实空间) rg_real	69.38 Å
Rg 误差 (实空间) rg_real_error	2.75 Å
I(0) (实空间) i0_real	7.5740e+08
I(0) 误差 (实空间) i0_real_error	1.9980e+07
Rg (倒空间) rg_reciprocal	66.58 Å
I(0) (倒空间) i0_reciprocal	753500000.0000
解质量估计 total_estimate	0.5904
解质量评级 solution_quality	REASONABLE a REASONABLE solution
P(r) 峰数 n_peaks	3
主峰位置 r_peak_primary	81.4 Å
偏度 Skewness skewness	0.477
峰度 Kurtosis kurtosis	-0.678
角度范围 angular_range	— – 0.1150 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	11410000.0000
实空间数据点数 n_real_points	24
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.058; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.496; 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 (4)

Entity 1 polymer

描述 description	UDP-GLUCOSE 4-EPIMERASE
分子量 formula_weight	36955.5 kDa
EC 编号 ec_number	5.1.3.2
来源方法 src_method	man
拷贝数 entity_count	6

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A,B,C,D,E,F
原子数 atom_count	16074

MNSILICGGAGYIGSHAVKKLVDEGLSVVVVDNLQTGHEDAITEGAKFYNGDLRDKAFLRDVFTQENIEAVMHFAADSLVGVSMEKPLQYYNNNVYGALCLLEVMDEFKVDKFIFSSTAATYGEVDVDLITEETMTNPTNTYGETKLAIEKMLHWYSQASNLRYKIFRYFNVAGATPNGIIGEDHRPETHLIPLVLQVALGQREKIMMFGDDYNTPDGTCIRDYIHVEDLVAAHFLGLKDLQNGGESDFYNLGNGNGFSVKEIVDAVREVTNHEIPAEVAPRRAGDPARLVASSQKAKEKLGWDPRYVNVKTIIEHAWNWHQKQPNGYEK

来源 Source

来源生物 organism	BACILLUS ANTHRACIS
NCBI 分类编号 ncbi_taxonomy_id	198094
宿主生物 host_organism	ESCHERICHIA COLI

Entity 2 non-polymer

描述 description	NICOTINAMIDE-ADENINE-DINUCLEOTIDE
分子量 formula_weight	663.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	6

Entity 3 non-polymer

描述 description	ZINC ION
分子量 formula_weight	65.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	6

Entity 4 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	234

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6. 折叠分类 (SCOP + CATH) 18 domains

SCOP 2.08 (6 domains)

结构域编号 domain_id	d2c20a_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.0 — automated matches

结构域编号 domain_id	d2c20b_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.0 — automated matches

结构域编号 domain_id	d2c20c_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.0 — automated matches

结构域编号 domain_id	d2c20d_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.0 — automated matches

结构域编号 domain_id	d2c20e_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.0 — automated matches

结构域编号 domain_id	d2c20f_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.0 — automated matches

CATH v4.4 (12 domains)

结构域编号 domain_id	2c20A01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2c20A02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	25 — UDP-galactose 4-epimerase; domain 1
同源超家族 H-superfamily homologous superfamily	10 — UDP-galactose 4-epimerase, domain 1

结构域编号 domain_id	2c20B01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2c20B02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	25 — UDP-galactose 4-epimerase; domain 1
同源超家族 H-superfamily homologous superfamily	10 — UDP-galactose 4-epimerase, domain 1

结构域编号 domain_id	2c20C01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2c20C02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	25 — UDP-galactose 4-epimerase; domain 1
同源超家族 H-superfamily homologous superfamily	10 — UDP-galactose 4-epimerase, domain 1

结构域编号 domain_id	2c20D01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2c20D02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	25 — UDP-galactose 4-epimerase; domain 1
同源超家族 H-superfamily homologous superfamily	10 — UDP-galactose 4-epimerase, domain 1

结构域编号 domain_id	2c20E01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2c20E02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	25 — UDP-galactose 4-epimerase; domain 1
同源超家族 H-superfamily homologous superfamily	10 — UDP-galactose 4-epimerase, domain 1

结构域编号 domain_id	2c20F01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2c20F02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	25 — UDP-galactose 4-epimerase; domain 1
同源超家族 H-superfamily homologous superfamily	10 — UDP-galactose 4-epimerase, domain 1

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7. 引用文献 (1)

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晶胞边长 a length_a	136.165 Å
晶胞边长 b length_b	136.165 Å
晶胞边长 c length_c	248.646 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	120.00 °
晶胞分子数 Z z_pdb	36

空间群 space_group	P 32 1 2
空间群编号 int_tables_number	153
晶系 crystal_system	—

分辨率 resolution	2.700 Å
最低分辨率 resolution_low	25.020 Å
R 因子 r_factor	0.2080
R_work r_work	0.2050
R_free r_free	0.2760

fit	/app/data/saxs_computation/c2/2c20/2c20.fit
pddf	/app/data/pr_computation/c2/2c20/2c20.pr.out
profile	/app/data/saxs_computation/c2/2c20/2c20.dat