SAXSdb — 1uh2

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	1uh2
沉积日期 deposition_date	2003-06-23
结构标题 title	Thermoactinomyces vulgaris R-47 alpha-amylase/malto-hexaose complex
关键词 keywords	starch binding domain, hydrolase; 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	26.82 Å
回转半径 Rg (电子) rg_electron	25.83 Å
零角强度 I(0) i0	90354900.00
分子量 molecular_weight	73334.0 kDa
排除体积 excluded_volume	90691 Å³
包络体积 envelope_volume	101120 Å³
水化壳体积 shell_volume	32450 Å³
包络直径 envelope_diameter	92.3 Å
壳层 Rg shell_rg	33.47 Å
包络 Rg envelope_rg	26.04 Å
形状 Rg shape_rg	25.81 Å
总 Rg total_rg	26.60 Å
总原子数 total_atoms	5187
残基数 n_residues	637
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	87.8 Å
Rg (实空间) rg_real	26.80 Å
Rg 误差 (实空间) rg_real_error	0.55 Å
I(0) (实空间) i0_real	9.0350e+07
I(0) 误差 (实空间) i0_real_error	1.2440e+06
Rg (倒空间) rg_reciprocal	26.81 Å
I(0) (倒空间) i0_reciprocal	90360000.0000
解质量估计 total_estimate	0.6748
解质量评级 solution_quality	REASONABLE a REASONABLE solution
P(r) 峰数 n_peaks	2
主峰位置 r_peak_primary	31.2 Å
偏度 Skewness skewness	0.375
峰度 Kurtosis kurtosis	-0.248
角度范围 angular_range	— – 0.2950 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	14790000.0000
实空间数据点数 n_real_points	60
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.859; Stabil: 1.000; Sysdev: 0.089; Positv: 1.000; Valcen: 0.991; Smooth: 0.933

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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 (5)

Entity 1 polymer

描述 description	alpha-amylase I
分子量 formula_weight	71108.3 kDa
EC 编号 ec_number	3.2.1.1
突变 mutation	D356N, E396Q
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
原子数 atom_count	5696

AANDNNVEWNGLFHDQGPLFDNAPEPTSTQSVTLKLRTFKGDITSANIKYWDTADNAFHWVPMVWDSNDPTGTFDYWKGTIPASPSIKYYRFQINDGTSTAWYNGNGPSSTEPNADDFYIIPNFKTPDWLKNGVMYQIFPDRFYNGDSSNDVQTGSYTYNGTPTEKKAWGSSVYADPGYDNSLVFFGGDLAGIDQKLGYIKKTLGANILYLNPIFKAPTNHKYDTQDYMAVDPAFGDNSTLQTLINDIHSTANGPKGYLILDGVFNHTGDSHPWFDKYNNFSSQGAYESQSSPWYNYYTFYTWPDSYASFLGFNSLPKLNYGNSGSAVRGVIYNNSNSVAKTYLNPPYSVDGWRLNAAQYVDANGNNGSDVTNHQIWSEFRNAVKGVNSNAAIIGQYWGNANPWTAQGNQWDAATNFDGFTQPVSEWITGKDYQNNSASISTTQFDSWLRGTRANYPTNVQQSMMNFLSNHDITRFATRSGGDLWKTYLALIFQMTYVGTPTIYYGDEYGMQGGADPDNRRSFDWSQATPSNSAVALTQKLITIRNQYPALRTGSFMTLITDDTNKIYSYGRFDNVNRIAVVLNNDSVSHTVNVPVWQLSMPNGSTVTDKITGHSYTVQNGMVTVAVDGHYGAVLAQ

来源 Source

来源生物 organism	Thermoactinomyces vulgaris
NCBI 分类编号 ncbi_taxonomy_id	2026
宿主生物 host_organism	Escherichia coli

Entity 2 branched

描述 description	;alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose ;
分子量 formula_weight	828.7 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 3 branched

描述 description	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose
分子量 formula_weight	666.6 kDa
来源方法 src_method	man
拷贝数 entity_count	2

Entity 4 non-polymer

描述 description	CALCIUM ION
分子量 formula_weight	40.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	3

Entity 5 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	509

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6. 折叠分类 (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

结构域编号 domain_id	d1uh2a1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.18 — E set domains
家族 Family family	b.1.18.2 — E-set domains of sugar-utilizing enzymes

结构域编号 domain_id	d1uh2a2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.71 — Glycosyl hydrolase domain
超家族 Superfamily superfamily	b.71.1 — Glycosyl hydrolase domain
家族 Family family	b.71.1.1 — alpha-Amylases, C-terminal beta-sheet domain

结构域编号 domain_id	d1uh2a3
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamily	c.1.8 — (Trans)glycosidases
家族 Family family	c.1.8.1 — Amylase, catalytic domain

CATH v4.4 (3 domains)

结构域编号 domain_id	1uh2A01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1uh2A02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily	80 — Glycosidases

结构域编号 domain_id	1uh2A03
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	1180 — Golgi alpha-mannosidase II

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7. 引用文献 (1)

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晶胞边长 a length_a	121.630 Å
晶胞边长 b length_b	50.491 Å
晶胞边长 c length_c	108.015 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	103.82 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	4

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	2.000 Å
最低分辨率 resolution_low	27.000 Å
R 因子 r_factor	0.1840
R_work r_work	0.1840
R_free r_free	0.2170

fit	/app/data/saxs_computation/uh/1uh2/1uh2.fit
pddf	/app/data/pr_computation/uh/1uh2/1uh2.pr.out
profile	/app/data/saxs_computation/uh/1uh2/1uh2.dat

Thermoactinomyces vulgaris R-47 alpha-amylase/malto-hexaose complex

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