1sdx

;Crystal structure of the zinc saturated C-terminal half of bovine lactoferrin at 2.0 A resolution reveals two additional zinc binding sites ;

Method: X-RAY DIFFRACTION D_max: 70.9 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	1sdx
沉积日期 deposition_date	2004-02-15
结构标题 title	;Crystal structure of the zinc saturated C-terminal half of bovine lactoferrin at 2.0 A resolution reveals two additional zinc binding sites ;
关键词 keywords	Lactoferrin, C-lobe, TRANSPORT PROTEIN; TRANSPORT 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	21.02 Å
回转半径 Rg (电子) rg_electron	19.90 Å
零角强度 I(0) i0	29323700.00
分子量 molecular_weight	39457.0 kDa
排除体积 excluded_volume	48521 Å³
包络体积 envelope_volume	57864 Å³
水化壳体积 shell_volume	23646 Å³
包络直径 envelope_diameter	72.2 Å
壳层 Rg shell_rg	27.07 Å
包络 Rg envelope_rg	20.11 Å
形状 Rg shape_rg	19.84 Å
总 Rg total_rg	20.96 Å
总原子数 total_atoms	2745
残基数 n_residues	340
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	70.9 Å
Rg (实空间) rg_real	20.89 Å
Rg 误差 (实空间) rg_real_error	0.36 Å
I(0) (实空间) i0_real	2.9320e+07
I(0) 误差 (实空间) i0_real_error	3.6230e+05
Rg (倒空间) rg_reciprocal	20.92 Å
I(0) (倒空间) i0_reciprocal	29320000.0000
解质量估计 total_estimate	0.8692
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	25.7 Å
偏度 Skewness skewness	0.184
峰度 Kurtosis kurtosis	-0.356
角度范围 angular_range	— – 0.3800 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	6504000.0000
实空间数据点数 n_real_points	70
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.767; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.996

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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 (9)

Entity 1 polymer

描述 description	Lactotransferrin
分子量 formula_weight	36622.3 kDa
突变 mutation	N224K, K267E
来源方法 src_method	nat
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	2973

YTRVVWCAVGPEEQKKCQQWSQQSGQNVTCATASTTDDCIVLVLKGEADALNLDGGYIYTAGKCGLVPVLAENRKSSKHSSLDCVLRPTEGYLAVAVVKKANEGLTWNSLKDKKSCHTAVDRTAGWNIPMGLIVNQTGSCAFDEFFSQSCAPGADPKSRLCALCAGDDQGLDKCVPNSKEKYYGYTGAFRCLAEDVGDVAFVKNDTVWENTNGESTADWAKNLKREDFRLLCLDGTRKPVTEAQSCHLAVAPNHAVVSRSDRAAHVEQVLLHQQALFGKNGKNCPDKFCLFKSETKNLLFNDNTECLAKLGGRPTYEEYLGTEYVTAIANLKKCS

Entity 2 polymer

描述 description	Lactotransferrin
分子量 formula_weight	505.6 kDa
来源方法 src_method	nat
拷贝数 entity_count	1

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	E

LEACA

Entity 3 branched

描述 description	2-acetamido-2-deoxy-alpha-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	1

Entity 4 branched

描述 description	;alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-4)]alpha-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-4)-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	1

Entity 5 branched

描述 description	alpha-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	man
拷贝数 entity_count	1

Entity 6 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	3

Entity 7 non-polymer

描述 description	CARBONATE ION
分子量 formula_weight	60.0 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 8 non-polymer

描述 description	SULFATE ION
分子量 formula_weight	96.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 9 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	228

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6. 折叠分类 (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

结构域编号 domain_id	d1sdx.1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.94 — Periplasmic binding protein-like II
超家族 Superfamily superfamily	c.94.1 — Periplasmic binding protein-like II
家族 Family family	c.94.1.2 — Transferrin

CATH v4.4 (2 domains)

结构域编号 domain_id	1sdxA01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Periplasmic binding protein-like II

结构域编号 domain_id	1sdxA02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Periplasmic binding protein-like II

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7. 引用文献 (1)

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晶胞边长 a length_a	63.210 Å
晶胞边长 b length_b	50.570 Å
晶胞边长 c length_c	66.170 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	107.64 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	2

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	2.060 Å
最低分辨率 resolution_low	19.900 Å
R 因子 r_factor	0.1920
R_work r_work	0.1920
R_free r_free	0.2100

fit	/app/data/saxs_computation/sd/1sdx/1sdx.fit
pddf	/app/data/pr_computation/sd/1sdx/1sdx.pr.out
profile	/app/data/saxs_computation/sd/1sdx/1sdx.dat

;Crystal structure of the zinc saturated C-terminal half of bovine lactoferrin at 2.0 A resolution reveals two additional zinc binding sites ;

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 (9)

Entity 1 polymer

聚合体 Polymer

Entity 2 polymer

聚合体 Polymer

Entity 3 branched

Entity 4 branched

Entity 5 branched

Entity 6 non-polymer

Entity 7 non-polymer

Entity 8 non-polymer

Entity 9 water

6. 折叠分类 (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. 引用文献 (1)

8. 文件与曲线 (10)

Files (7)

Curves (3)