1kxt

Camelid VHH Domains in Complex with Porcine Pancreatic alpha-Amylase

Method: X-RAY DIFFRACTION D_max: 160.5 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	1kxt
沉积日期 deposition_date	2002-02-01
结构标题 title	Camelid VHH Domains in Complex with Porcine Pancreatic alpha-Amylase
关键词 keywords	ALPHA 8 BETA 8; BETA BARREL, HYDROLASE, IMMUNE SYSTEM; HYDROLASE, IMMUNE SYSTEM
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	48.58 Å
回转半径 Rg (电子) rg_electron	48.43 Å
零角强度 I(0) i0	650534000.00
分子量 molecular_weight	205030.0 kDa
排除体积 excluded_volume	253290 Å³
包络体积 envelope_volume	347040 Å³
水化壳体积 shell_volume	60660 Å³
包络直径 envelope_diameter	164.8 Å
壳层 Rg shell_rg	52.16 Å
包络 Rg envelope_rg	46.55 Å
形状 Rg shape_rg	48.41 Å
总 Rg total_rg	48.63 Å
总原子数 total_atoms	14445
残基数 n_residues	1815
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	160.5 Å
Rg (实空间) rg_real	48.68 Å
Rg 误差 (实空间) rg_real_error	1.55 Å
I(0) (实空间) i0_real	6.5050e+08
I(0) 误差 (实空间) i0_real_error	1.1470e+07
Rg (倒空间) rg_reciprocal	48.58 Å
I(0) (倒空间) i0_reciprocal	650400000.0000
解质量估计 total_estimate	0.8701
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	60.2 Å
偏度 Skewness skewness	0.266
峰度 Kurtosis kurtosis	-0.572
角度范围 angular_range	— – 0.1600 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	35370000.0000
实空间数据点数 n_real_points	33
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.921; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.956; Smooth: 0.588

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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, PANCREATIC
分子量 formula_weight	55462.8 kDa
EC 编号 ec_number	3.2.1.1
来源方法 src_method	nat
拷贝数 entity_count	3

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A,C,E
原子数 atom_count	16172

QYAPQTQSGRTSIVHLFEWRWVDIALECERYLGPKGFGGVQVSPPNENIVVTNPSRPWWERYQPVSYKLCTRSGNENEFRDMVTRCNNVGVRIYVDAVINHMCGSGAAAGTGTTCGSYCNPGSREFPAVPYSAWDFNDGKCKTASGGIESYNDPYQVRDCQLVGLLDLALEKDYVRSMIADYLNKLIDIGVAGFRIDASKHMWPGDIKAVLDKLHNLNTNWFPAGSRPFIFQEVIDLGGEAIKSSEYFGNGRVTEFKYGAKLGTVVRKWSGEKMSYLKNWGEGWGFMPSDRALVFVDNHDNQRGHGAGGSSILTFWDARLYKIAVGFMLAHPYGFTRVMSSYRWARNFVNGEDVNDWIGPPNNNGVIKEVTINADTTCGNDWVCEHRWREIRNMVWFRNVVDGQPFANWWDNGSNQVAFGRGNRGFIVFNNDDWQLSSTLQTGLPGGTYCDVISGDKVGNSCTGIKVYVSSDGTAQFSISNSAEDPFIAIHAESKL

Entity 2 polymer

描述 description	IMMUNOGLOBULIN VHH FRAGMENT
分子量 formula_weight	13284.6 kDa
来源方法 src_method	man
拷贝数 entity_count	3

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	B,D,F

QVQLVASGGGSVQAGGSLRLSCAASGYTFSSYPMGWYRQAPGKECELSARIFSDGSANYADSVKGRFTISRDNAANTAYLQMDSLKPEDTAVYYCAAGPGSGKLVVAGRTCYGPNYWGQGTQVTVSS

来源 Source

来源生物 organism	Camelus dromedarius
通用名 common_name	Arabian camel
NCBI 分类编号 ncbi_taxonomy_id	9838
宿主生物 host_organism	Escherichia coli

Entity 3 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 4 non-polymer

描述 description	CHLORIDE ION
分子量 formula_weight	35.5 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	1727

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6. 折叠分类 (SCOP + CATH) 18 domains

SCOP 2.08 (9 domains)

结构域编号 domain_id	d1kxta1
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	d1kxta2
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

结构域编号 domain_id	d1kxtb_
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.1 — V set domains (antibody variable domain-like)

结构域编号 domain_id	d1kxtc1
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	d1kxtc2
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

结构域编号 domain_id	d1kxtd_
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.1 — V set domains (antibody variable domain-like)

结构域编号 domain_id	d1kxte1
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	d1kxte2
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

结构域编号 domain_id	d1kxtf_
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.1 — V set domains (antibody variable domain-like)

CATH v4.4 (9 domains)

结构域编号 domain_id	1kxtA01
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	1kxtA02
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

结构域编号 domain_id	1kxtB00
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	1kxtC01
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	1kxtC02
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

结构域编号 domain_id	1kxtD00
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	1kxtE01
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	1kxtE02
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

结构域编号 domain_id	1kxtF00
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

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7. 引用文献 (3)

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晶胞边长 a length_a	52.780 Å
晶胞边长 b length_b	286.850 Å
晶胞边长 c length_c	65.980 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	93.73 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	6

空间群 space_group	P 1 21 1
空间群编号 int_tables_number	4
晶系 crystal_system	—

分辨率 resolution	2.000 Å
最低分辨率 resolution_low	19.950 Å
R 因子 r_factor	—
R_work r_work	0.2030
R_free r_free	0.2360

fit	/app/data/saxs_computation/kx/1kxt/1kxt.fit
pddf	/app/data/pr_computation/kx/1kxt/1kxt.pr.out
profile	/app/data/saxs_computation/kx/1kxt/1kxt.dat

Camelid VHH Domains in Complex with Porcine Pancreatic alpha-Amylase

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

5. 实体与聚合体信息 (5)

Entity 1 polymer

聚合体 Polymer

Entity 2 polymer

聚合体 Polymer

来源 Source

Entity 3 non-polymer

Entity 4 non-polymer

Entity 5 water

6. 折叠分类 (SCOP + CATH) 18 domains

SCOP 2.08 (9 domains)

CATH v4.4 (9 domains)

7. 引用文献 (3)

8. 文件与曲线 (10)

Files (7)

Curves (3)