SAXSdb — 1ivg

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	1ivg
沉积日期 deposition_date	1994-12-12
结构标题 title	STRUCTURES OF AROMATIC INHIBITORS OF INFLUENZA VIRUS NEURAMINIDASE
关键词 keywords	HYDROLASE (O-GLYCOSYL); HYDROLASE (O-GLYCOSYL)
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	29.54 Å
回转半径 Rg (电子) rg_electron	28.66 Å
零角强度 I(0) i0	150013000.00
分子量 molecular_weight	91455.0 kDa
排除体积 excluded_volume	111950 Å³
包络体积 envelope_volume	134280 Å³
水化壳体积 shell_volume	38553 Å³
包络直径 envelope_diameter	103.1 Å
壳层 Rg shell_rg	36.44 Å
包络 Rg envelope_rg	28.83 Å
形状 Rg shape_rg	28.64 Å
总 Rg total_rg	29.39 Å
总原子数 total_atoms	8182
残基数 n_residues	776
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	102.3 Å
Rg (实空间) rg_real	29.54 Å
Rg 误差 (实空间) rg_real_error	1.05 Å
I(0) (实空间) i0_real	1.5000e+08
I(0) 误差 (实空间) i0_real_error	2.6140e+06
Rg (倒空间) rg_reciprocal	29.54 Å
I(0) (倒空间) i0_reciprocal	150000000.0000
解质量估计 total_estimate	0.7861
解质量评级 solution_quality	GOOD a GOOD solution
P(r) 峰数 n_peaks	3
主峰位置 r_peak_primary	32.2 Å
偏度 Skewness skewness	0.363
峰度 Kurtosis kurtosis	-0.391
角度范围 angular_range	— – 0.2700 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	35100000.0000
实空间数据点数 n_real_points	55
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.747; Stabil: 0.997; Sysdev: 1.000; Positv: 1.000; Valcen: 0.985; 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 (7)

Entity 1 polymer

描述 description	INFLUENZA A SUBTYPE N2 NEURAMINIDASE
分子量 formula_weight	43141.0 kDa
EC 编号 ec_number	3.2.1.18
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	8557

VEYRNWSKPQCQITGFAPFSKDNSIRLSAGGDIWVTREPYVSCDPVKCYQFALGQGTTLDNKHSNDTVHDRIPHRTLLMNELGVPFHLGTRQVCIAWSSSSCHDGKAWLHVCITGDDKNATASFIYDGRLVDSIGSWSQNILRTQESECVCINGTCTVVMTDGSASGRADTRILFIEEGKIVHISPLAGSAQHVEECSCYPRYPGVRCICRDNWKGSNRPVVDINMEDYSIDSSYVCSGLVGDTPRNDDRSSNSNCRDPNNERGTQGVKGWAFDNGNDLWMGRTISKDLRSGYETFKVIGGWSTPNSKSQINRQVIVDSDNRSGYSGIFSVEGKSCINRCFYVELIRGRKQETRVWWTSNSIVVFCGTSGTYGTGSWPDGANINFMPI

来源 Source

来源生物 organism	Influenza A virus (strain A/Tokyo/3/1967 H2N2)
NCBI 分类编号 ncbi_taxonomy_id	380960

Entity 2 branched

描述 description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
分子量 formula_weight	424.4 kDa
来源方法 src_method	man
拷贝数 entity_count	4

Entity 3 branched

描述 description	;beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[beta-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ;
分子量 formula_weight	732.7 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 4 branched

描述 description	;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-D-mannopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ;
分子量 formula_weight	1073.0 kDa
来源方法 src_method	man
拷贝数 entity_count	2

Entity 5 branched

描述 description	;beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ;
分子量 formula_weight	732.7 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 6 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	2

Entity 7 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	125

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6. 折叠分类 (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

结构域编号 domain_id	d1ivga_
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.68 — 6-bladed beta-propeller
超家族 Superfamily superfamily	b.68.1 — Sialidases
家族 Family family	b.68.1.1 — Sialidases (neuraminidases)

结构域编号 domain_id	d1ivgb_
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.68 — 6-bladed beta-propeller
超家族 Superfamily superfamily	b.68.1 — Sialidases
家族 Family family	b.68.1.1 — Sialidases (neuraminidases)

CATH v4.4 (2 domains)

结构域编号 domain_id	1ivgA00
类 Class class	2 — Mainly Beta
架构 Architecture architecture	120 — 6 Propeller
拓扑 Topology topology	10 — Neuraminidase
同源超家族 H-superfamily homologous superfamily	10 —

结构域编号 domain_id	1ivgB00
类 Class class	2 — Mainly Beta
架构 Architecture architecture	120 — 6 Propeller
拓扑 Topology topology	10 — Neuraminidase
同源超家族 H-superfamily homologous superfamily	10 —

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7. 引用文献 (2)

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晶胞边长 a length_a	120.970 Å
晶胞边长 b length_b	141.140 Å
晶胞边长 c length_c	142.160 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	16

空间群 space_group	C 2 2 21
空间群编号 int_tables_number	20
晶系 crystal_system	—

分辨率 resolution	1.900 Å
最低分辨率 resolution_low	5.000 Å
R 因子 r_factor	0.2050
R_work r_work	0.2050
R_free r_free	—

fit	/app/data/saxs_computation/iv/1ivg/1ivg.fit
pddf	/app/data/pr_computation/iv/1ivg/1ivg.pr.out
profile	/app/data/saxs_computation/iv/1ivg/1ivg.dat

STRUCTURES OF AROMATIC INHIBITORS OF INFLUENZA VIRUS NEURAMINIDASE

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution