1g1q

Crystal structure of P-selectin lectin/EGF domains

Method: X-RAY DIFFRACTION D_max: 107.6 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	1g1q
沉积日期 deposition_date	2000-10-13
结构标题 title	Crystal structure of P-selectin lectin/EGF domains
关键词 keywords	Lectin, EGF, Adhesion molecule, IMMUNE SYSTEM, MEMBRANE PROTEIN; IMMUNE SYSTEM, MEMBRANE 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	33.65 Å
回转半径 Rg (电子) rg_electron	33.20 Å
零角强度 I(0) i0	95884600.00
分子量 molecular_weight	75200.0 kDa
排除体积 excluded_volume	92738 Å³
包络体积 envelope_volume	128790 Å³
水化壳体积 shell_volume	33452 Å³
包络直径 envelope_diameter	116.7 Å
壳层 Rg shell_rg	38.69 Å
包络 Rg envelope_rg	32.32 Å
形状 Rg shape_rg	33.19 Å
总 Rg total_rg	33.68 Å
总原子数 total_atoms	5280
残基数 n_residues	639
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	107.6 Å
Rg (实空间) rg_real	33.55 Å
Rg 误差 (实空间) rg_real_error	0.90 Å
I(0) (实空间) i0_real	9.5880e+07
I(0) 误差 (实空间) i0_real_error	1.4200e+06
Rg (倒空间) rg_reciprocal	33.62 Å
I(0) (倒空间) i0_reciprocal	95890000.0000
解质量估计 total_estimate	0.8946
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	45.8 Å
偏度 Skewness skewness	0.089
峰度 Kurtosis kurtosis	-0.543
角度范围 angular_range	— – 0.2350 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	4831000.0000
实空间数据点数 n_real_points	48
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.910; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.992; Smooth: 0.905

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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	P-SELECTIN
分子量 formula_weight	19131.2 kDa
来源方法 src_method	man
拷贝数 entity_count	4

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A,B,C,D
原子数 atom_count	5414

WTYHYSTKAYSWNISRKYCQNRYTDLVAIQNKNEIDYLNKVLPYYSSYYWIGIRKNNKTWTWVGTKKALTNEAENWADNEPNNKRNNEDCVEIYIKSPSAPGKWNDEHCLKKKHALCYTASCQDMSCSKQGECLETIGNYTCSCYPGFYGPECEYVRDDDDK

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	Cricetulus griseus

Entity 2 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	4

Entity 3 non-polymer

描述 description	(4R)-2-METHYLPENTANE-2,4-DIOL
分子量 formula_weight	118.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

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	134

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6. 折叠分类 (SCOP + CATH) 20 domains

SCOP 2.08 (12 domains)

结构域编号 domain_id	d1g1qa1
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.169 — C-type lectin-like
超家族 Superfamily superfamily	d.169.1 — C-type lectin-like
家族 Family family	d.169.1.1 — C-type lectin domain

结构域编号 domain_id	d1g1qa2
类 Class class	g — Small proteins
折叠类型 Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
超家族 Superfamily superfamily	g.3.11 — EGF/Laminin
家族 Family family	g.3.11.1 — EGF-type module

结构域编号 domain_id	d1g1qa3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

结构域编号 domain_id	d1g1qb1
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.169 — C-type lectin-like
超家族 Superfamily superfamily	d.169.1 — C-type lectin-like
家族 Family family	d.169.1.1 — C-type lectin domain

结构域编号 domain_id	d1g1qb2
类 Class class	g — Small proteins
折叠类型 Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
超家族 Superfamily superfamily	g.3.11 — EGF/Laminin
家族 Family family	g.3.11.1 — EGF-type module

结构域编号 domain_id	d1g1qb3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

结构域编号 domain_id	d1g1qc1
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.169 — C-type lectin-like
超家族 Superfamily superfamily	d.169.1 — C-type lectin-like
家族 Family family	d.169.1.1 — C-type lectin domain

结构域编号 domain_id	d1g1qc2
类 Class class	g — Small proteins
折叠类型 Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
超家族 Superfamily superfamily	g.3.11 — EGF/Laminin
家族 Family family	g.3.11.1 — EGF-type module

结构域编号 domain_id	d1g1qc3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

结构域编号 domain_id	d1g1qd1
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.169 — C-type lectin-like
超家族 Superfamily superfamily	d.169.1 — C-type lectin-like
家族 Family family	d.169.1.1 — C-type lectin domain

结构域编号 domain_id	d1g1qd2
类 Class class	g — Small proteins
折叠类型 Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
超家族 Superfamily superfamily	g.3.11 — EGF/Laminin
家族 Family family	g.3.11.1 — EGF-type module

结构域编号 domain_id	d1g1qd3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

CATH v4.4 (8 domains)

结构域编号 domain_id	1g1qA01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	10 — Roll
拓扑 Topology topology	100 — Mannose-Binding Protein A; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Mannose-Binding Protein A, subunit A

结构域编号 domain_id	1g1qA02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	10 — Ribbon
拓扑 Topology topology	25 — Laminin
同源超家族 H-superfamily homologous superfamily	10 — Laminin

结构域编号 domain_id	1g1qB01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	10 — Roll
拓扑 Topology topology	100 — Mannose-Binding Protein A; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Mannose-Binding Protein A, subunit A

结构域编号 domain_id	1g1qB02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	10 — Ribbon
拓扑 Topology topology	25 — Laminin
同源超家族 H-superfamily homologous superfamily	10 — Laminin

结构域编号 domain_id	1g1qC01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	10 — Roll
拓扑 Topology topology	100 — Mannose-Binding Protein A; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Mannose-Binding Protein A, subunit A

结构域编号 domain_id	1g1qC02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	10 — Ribbon
拓扑 Topology topology	25 — Laminin
同源超家族 H-superfamily homologous superfamily	10 — Laminin

结构域编号 domain_id	1g1qD01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	10 — Roll
拓扑 Topology topology	100 — Mannose-Binding Protein A; Chain A
同源超家族 H-superfamily homologous superfamily	10 — Mannose-Binding Protein A, subunit A

结构域编号 domain_id	1g1qD02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	10 — Ribbon
拓扑 Topology topology	25 — Laminin
同源超家族 H-superfamily homologous superfamily	10 — Laminin

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7. 引用文献 (1)

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晶胞边长 a length_a	81.000 Å
晶胞边长 b length_b	60.830 Å
晶胞边长 c length_c	91.440 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	103.58 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	8

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	2.400 Å
最低分辨率 resolution_low	14.000 Å
R 因子 r_factor	0.2130
R_work r_work	0.2130
R_free r_free	0.2520

fit	/app/data/saxs_computation/g1/1g1q/1g1q.fit
pddf	/app/data/pr_computation/g1/1g1q/1g1q.pr.out
profile	/app/data/saxs_computation/g1/1g1q/1g1q.dat