1fq8

X-RAY STRUCTURE OF DIFLUOROSTATINE INHIBITOR CP81,198 BOUND TO SACCHAROPEPSIN

Method: X-RAY DIFFRACTION D_max: 68.3 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	1fq8
沉积日期 deposition_date	2000-09-04
结构标题 title	X-RAY STRUCTURE OF DIFLUOROSTATINE INHIBITOR CP81,198 BOUND TO SACCHAROPEPSIN
关键词 keywords	HYDROLASE-HYDROLASE INHIBITOR complex; HYDROLASE/HYDROLASE INHIBITOR
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	21.21 Å
回转半径 Rg (电子) rg_electron	19.84 Å
零角强度 I(0) i0	23273100.00
分子量 molecular_weight	37467.0 kDa
排除体积 excluded_volume	47012 Å³
包络体积 envelope_volume	54317 Å³
水化壳体积 shell_volume	22549 Å³
包络直径 envelope_diameter	68.4 Å
壳层 Rg shell_rg	26.60 Å
包络 Rg envelope_rg	20.04 Å
形状 Rg shape_rg	19.81 Å
总 Rg total_rg	20.81 Å
总原子数 total_atoms	2648
残基数 n_residues	329
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	68.3 Å
Rg (实空间) rg_real	21.11 Å
Rg 误差 (实空间) rg_real_error	0.34 Å
I(0) (实空间) i0_real	2.3270e+07
I(0) 误差 (实空间) i0_real_error	3.2950e+05
Rg (倒空间) rg_reciprocal	21.13 Å
I(0) (倒空间) i0_reciprocal	23270000.0000
解质量估计 total_estimate	0.8940
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	26.1 Å
偏度 Skewness skewness	0.219
峰度 Kurtosis kurtosis	-0.385
角度范围 angular_range	— – 0.3750 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	4713000.0000
实空间数据点数 n_real_points	69
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.874; 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 (5)

Entity 1 polymer

描述 description	SACCHAROPEPSIN
分子量 formula_weight	35774.6 kDa
EC 编号 ec_number	3.4.23.25
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	2812

GGHDVPLTNYLNAQYYTDITLGTPPQNFKVILDTGSSNLWVPSNECGSLACFLHSKYDHEASSSYKANGTEFAIQYGTGSLEGYISQDTLSIGDLTIPKQDFAEATSEPGLTFAFGKFDGILGLGYDTISVDKVVPPFYNAIQQDLLDEKRFAFYLGDTSKDTENGGEATFGGIDESKFKGDITWLPVRRKAYWEVKFEGIGLGDEYAELESHGAAIDTGTSLITLPSGLAEMINAEIGAKKGWTGQYTLDCNTRDNLPDLIFNFNGYNFTIGPYDYTLEVSGSCISAITPMDFPEPVGPLAIVGDAFLRKYYSIYDIGNNAVGLAKAI

Entity 2 branched

描述 description	;beta-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-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	910.8 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 3 non-polymer

描述 description	;N-[(2S)-1-[[(2S)-1-[[(2S,3R)-1-cyclohexyl-4,4-difluoro-3-hydroxy-5-(methylamino)-5-oxo-pentan-2-yl]amino]-1-oxo-hexan-2 -yl]amino]-1-oxo-3-phenyl-propan-2-yl]morpholine-4-carboxamide ;
分子量 formula_weight	637.8 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

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	man
拷贝数 entity_count	1

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	164

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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	d1fq8a_
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.50 — Acid proteases
超家族 Superfamily superfamily	b.50.1 — Acid proteases
家族 Family family	b.50.1.2 — Pepsin-like

CATH v4.4 (2 domains)

结构域编号 domain_id	1fq8A01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	40 — Beta Barrel
拓扑 Topology topology	70 — Cathepsin D, subunit A; domain 1
同源超家族 H-superfamily homologous superfamily	10 — Acid Proteases

结构域编号 domain_id	1fq8A02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	40 — Beta Barrel
拓扑 Topology topology	70 — Cathepsin D, subunit A; domain 1
同源超家族 H-superfamily homologous superfamily	10 — Acid Proteases

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7. 引用文献 (2)

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晶胞边长 a length_a	86.820 Å
晶胞边长 b length_b	86.820 Å
晶胞边长 c length_c	110.240 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	120.00 °
晶胞分子数 Z z_pdb	6

空间群 space_group	P 32 2 1
空间群编号 int_tables_number	154
晶系 crystal_system	—

分辨率 resolution	2.800 Å
最低分辨率 resolution_low	15.400 Å
R 因子 r_factor	0.1900
R_work r_work	—
R_free r_free	0.2700

fit	/app/data/saxs_computation/fq/1fq8/1fq8.fit
pddf	/app/data/pr_computation/fq/1fq8/1fq8.pr.out
profile	/app/data/saxs_computation/fq/1fq8/1fq8.dat