SAXSdb — 2ajf

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	2ajf
沉积日期 deposition_date	2005-08-01
结构标题 title	Structure of SARS coronavirus spike receptor-binding domain complexed with its receptor
关键词 keywords	antiparallel beta sheet, extended loop, hydrolase-viral protein COMPLEX; hydrolase/viral protein
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	45.60 Å
回转半径 Rg (电子) rg_electron	45.34 Å
零角强度 I(0) i0	471816000.00
分子量 molecular_weight	180310.0 kDa
排除体积 excluded_volume	225310 Å³
包络体积 envelope_volume	318830 Å³
水化壳体积 shell_volume	58153 Å³
包络直径 envelope_diameter	152.0 Å
壳层 Rg shell_rg	50.15 Å
包络 Rg envelope_rg	44.51 Å
形状 Rg shape_rg	45.33 Å
总 Rg total_rg	45.60 Å
总原子数 total_atoms	12712
残基数 n_residues	1542
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	144.9 Å
Rg (实空间) rg_real	45.65 Å
Rg 误差 (实空间) rg_real_error	1.07 Å
I(0) (实空间) i0_real	4.7180e+08
I(0) 误差 (实空间) i0_real_error	7.5900e+06
Rg (倒空间) rg_reciprocal	45.60 Å
I(0) (倒空间) i0_reciprocal	471800000.0000
解质量估计 total_estimate	0.8667
解质量评级 solution_quality	GOOD a GOOD solution
P(r) 峰数 n_peaks	2
主峰位置 r_peak_primary	41.4 Å
偏度 Skewness skewness	0.231
峰度 Kurtosis kurtosis	-0.744
角度范围 angular_range	— – 0.1750 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	78580000.0000
实空间数据点数 n_real_points	36
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.914; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.950; Smooth: 0.571

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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	Angiotensin-converting enzyme-Related Carboxypeptidase (Ace2)
分子量 formula_weight	69153.7 kDa
EC 编号 ec_number	3.4.17.-
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	12777

STIEEQAKTFLDKFNHEAEDLFYQSSLASWNYNTNITEENVQNMNNAGDKWSAFLKEQSTLAQMYPLQEIQNLTVKLQLQALQQNGSSVLSEDKSKRLNTILNTMSTIYSTGKVCNPDNPQECLLLEPGLNEIMANSLDYNERLWAWESWRSEVGKQLRPLYEEYVVLKNEMARANHYEDYGDYWRGDYEVNGVDGYDYSRGQLIEDVEHTFEEIKPLYEHLHAYVRAKLMNAYPSYISPIGCLPAHLLGDMWGRFWTNLYSLTVPFGQKPNIDVTDAMVDQAWDAQRIFKEAEKFFVSVGLPNMTQGFWENSMLTDPGNVQKAVCHPTAWDLGKGDFRILMCTKVTMDDFLTAHHEMGHIQYDMAYAAQPFLLRNGANEGFHEAVGEIMSLSAATPKHLKSIGLLSPDFQEDNETEINFLLKQALTIVGTLPFTYMLEKWRWMVFKGEIPKDQWMKKWWEMKREIVGVVEPVPHDETYCDPASLFHVSNDYSFIRYYTRTLYQFQFQEALCQAAKHEGPLHKCDISNSTEAGQKLFNMLRLGKSEPWTLALENVVGAKNMNVRPLLNYFEPLFTWLKDQNKNSFVGWSTDWSPYAD

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	Spodoptera frugiperda

Entity 2 polymer

描述 description	SARS-coronavirus spike protein
分子量 formula_weight	20523.1 kDa
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	E,F

CPFGEVFNATKFPSVYAWERKKISNCVADYSVLYNSTFFSTFKCYGVSATKLNDLCFSNVYADSFVVKGDDVRQIAPGQTGVIADYNYKLPDDFMGCVLAWNTRNIDATSTGNYNYKYRYLRHGKLRPFERDISNVPFSPDGKPCTPPALNCYWPLNDYGFYTTTGIGYQPYRVVVLSFE

来源 Source

来源生物 organism	SARS coronavirus
NCBI 分类编号 ncbi_taxonomy_id	227859
宿主生物 host_organism	Spodoptera frugiperda

Entity 3 branched

描述 description	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
分子量 formula_weight	586.5 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 4 non-polymer

描述 description	2-acetamido-2-deoxy-beta-D-glucopyranose
分子量 formula_weight	221.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	6

Entity 5 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	2

Entity 6 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	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	65

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6. 折叠分类 (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

结构域编号 domain_id	d2ajfa_
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.92 — Zincin-like
超家族 Superfamily superfamily	d.92.1 — Metalloproteases ('zincins'), catalytic domain
家族 Family family	d.92.1.5 — Neurolysin-like

结构域编号 domain_id	d2ajfb_
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.92 — Zincin-like
超家族 Superfamily superfamily	d.92.1 — Metalloproteases ('zincins'), catalytic domain
家族 Family family	d.92.1.5 — Neurolysin-like

结构域编号 domain_id	d2ajfe1
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.318 — SARS receptor-binding domain-like
超家族 Superfamily superfamily	d.318.1 — SARS receptor-binding domain-like
家族 Family family	d.318.1.1 — SARS receptor-binding domain-like

结构域编号 domain_id	d2ajff_
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.318 — SARS receptor-binding domain-like
超家族 Superfamily superfamily	d.318.1 — SARS receptor-binding domain-like
家族 Family family	d.318.1.1 — SARS receptor-binding domain-like

CATH v4.4 (2 domains)

结构域编号 domain_id	2ajfE01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	70 — Alpha-Beta Plaits
同源超家族 H-superfamily homologous superfamily	1840 — Spike protein, C-terminal core receptor binding subdomain

结构域编号 domain_id	2ajfF01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	70 — Alpha-Beta Plaits
同源超家族 H-superfamily homologous superfamily	1840 — Spike protein, C-terminal core receptor binding subdomain

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7. 引用文献 (1)

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晶胞边长 a length_a	82.299 Å
晶胞边长 b length_b	119.429 Å
晶胞边长 c length_c	113.237 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	91.97 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	4

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	2.900 Å
最低分辨率 resolution_low	47.400 Å
R 因子 r_factor	0.2210
R_work r_work	0.2180
R_free r_free	0.2750

fit	/app/data/saxs_computation/aj/2ajf/2ajf.fit
pddf	/app/data/pr_computation/aj/2ajf/2ajf.pr.out
profile	/app/data/saxs_computation/aj/2ajf/2ajf.dat

Structure of SARS coronavirus spike receptor-binding domain complexed with its receptor

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 (7)

Entity 1 polymer

聚合体 Polymer

来源 Source

Entity 2 polymer

聚合体 Polymer

来源 Source

Entity 3 branched

Entity 4 non-polymer

Entity 5 non-polymer

Entity 6 non-polymer

Entity 7 water

6. 折叠分类 (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. 引用文献 (1)

8. 文件与曲线 (10)

Files (7)

Curves (3)