SAXSdb — 1jgt

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	1jgt
沉积日期 deposition_date	2001-06-26
结构标题 title	CRYSTAL STRUCTURE OF BETA-LACTAM SYNTHETASE
关键词 keywords	BETA-LACTAM SYNTHETASE, ASPARAGINE SYNTHETASE, CLAVULANIC ACID, AMPCPP, CEA, CARBOXYETHYLARGININE, HYDROLASE; HYDROLASE
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	31.66 Å
回转半径 Rg (电子) rg_electron	30.51 Å
零角强度 I(0) i0	193759000.00
分子量 molecular_weight	107530.0 kDa
排除体积 excluded_volume	133350 Å³
包络体积 envelope_volume	164890 Å³
水化壳体积 shell_volume	43507 Å³
包络直径 envelope_diameter	99.6 Å
壳层 Rg shell_rg	39.00 Å
包络 Rg envelope_rg	30.44 Å
形状 Rg shape_rg	30.52 Å
总 Rg total_rg	31.17 Å
总原子数 total_atoms	7567
残基数 n_residues	990
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	100.1 Å
Rg (实空间) rg_real	31.54 Å
Rg 误差 (实空间) rg_real_error	0.83 Å
I(0) (实空间) i0_real	1.9380e+08
I(0) 误差 (实空间) i0_real_error	2.9620e+06
Rg (倒空间) rg_reciprocal	31.59 Å
I(0) (倒空间) i0_reciprocal	193800000.0000
解质量估计 total_estimate	0.9065
解质量评级 solution_quality	EXCELLENT a EXCELLENT solution
P(r) 峰数 n_peaks	2
主峰位置 r_peak_primary	38.0 Å
偏度 Skewness skewness	0.200
峰度 Kurtosis kurtosis	-0.574
角度范围 angular_range	— – 0.2500 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	85990000.0000
实空间数据点数 n_real_points	51
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.937; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.972

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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 (6)

Entity 1 polymer

描述 description	BETA-LACTAM SYNTHETASE
分子量 formula_weight	54601.6 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	A,B
原子数 atom_count	8189

MGAPVLPAAFGFLASARTGGGRAPGPVFATRGSHTDIDTPQGERSLAATLVHAPSVAPDRAVARSLTGAPTTAVLAGEIYNRDELLSVLPAGPAPEGDAELVLRLLERYDLHAFRLVNGRFATVVRTGDRVLLATDHAGSVPLYTCVAPGEVRASTEAKALAAHRDPKGFPLADARRVAGLTGVYQVPAGAVMDIDLGSGTAVTHRTWTPGLSRRILPEGEAVAAVRAALEKAVAQRVTPGDTPLVVLSGGIDSSGVAACAHRAAGELDTVSMGTDTSNEFREARAVVDHLRTRHREITIPTTELLAQLPYAVWASESVDPDIIEYLLPLTALYRALDGPERRILTGYGADIPLGGMHREDRLPALDTVLAHDMATFDGLNEMSPVLSTLAGHWTTHPYWDREVLDLLVSLEAGLKRRHGRDKWVLRAAMADALPAETVNRPKLGVHEGSGTTSSFSRLLLDHGVAEDRVHEAKRQVVRELFDLTVGGGRHPSEVDTDDVVRSVADRTARGAA

来源 Source

来源生物 organism	Streptomyces clavuligerus
NCBI 分类编号 ncbi_taxonomy_id	1901
宿主生物 host_organism	Escherichia coli BL21(DE3)

Entity 2 non-polymer

描述 description	MAGNESIUM ION
分子量 formula_weight	24.3 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 3 non-polymer

描述 description	DIPHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER
分子量 formula_weight	505.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 4 non-polymer

描述 description	N2-(CARBOXYETHYL)-L-ARGININE
分子量 formula_weight	246.3 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 5 non-polymer

描述 description	GLYCEROL
分子量 formula_weight	92.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	5

Entity 6 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	622

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6. 折叠分类 (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

结构域编号 domain_id	d1jgta1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.26 — Adenine nucleotide alpha hydrolase-like
超家族 Superfamily superfamily	c.26.2 — Adenine nucleotide alpha hydrolases-like
家族 Family family	c.26.2.1 — N-type ATP pyrophosphatases

结构域编号 domain_id	d1jgta2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.153 — Ntn hydrolase-like
超家族 Superfamily superfamily	d.153.1 — N-terminal nucleophile aminohydrolases (Ntn hydrolases)
家族 Family family	d.153.1.1 — Class II glutamine amidotransferases

结构域编号 domain_id	d1jgtb1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.26 — Adenine nucleotide alpha hydrolase-like
超家族 Superfamily superfamily	c.26.2 — Adenine nucleotide alpha hydrolases-like
家族 Family family	c.26.2.1 — N-type ATP pyrophosphatases

结构域编号 domain_id	d1jgtb2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.153 — Ntn hydrolase-like
超家族 Superfamily superfamily	d.153.1 — N-terminal nucleophile aminohydrolases (Ntn hydrolases)
家族 Family family	d.153.1.1 — Class II glutamine amidotransferases

CATH v4.4 (4 domains)

结构域编号 domain_id	1jgtA01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	60 — 4-Layer Sandwich
拓扑 Topology topology	20 — Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Aminohydrolase, N-terminal nucleophile (Ntn) domain

结构域编号 domain_id	1jgtA02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	620 — HUPs

结构域编号 domain_id	1jgtB01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	60 — 4-Layer Sandwich
拓扑 Topology topology	20 — Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Aminohydrolase, N-terminal nucleophile (Ntn) domain

结构域编号 domain_id	1jgtB02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	40 — 3-Layer(aba) Sandwich
拓扑 Topology topology	50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily	620 — HUPs

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7. 引用文献 (1)

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晶胞边长 a length_a	61.352 Å
晶胞边长 b length_b	97.873 Å
晶胞边长 c length_c	80.969 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	90.78 °
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	1.950 Å
最低分辨率 resolution_low	19.890 Å
R 因子 r_factor	0.1940
R_work r_work	0.1950
R_free r_free	0.2280

fit	/app/data/saxs_computation/jg/1jgt/1jgt.fit
pddf	/app/data/pr_computation/jg/1jgt/1jgt.pr.out
profile	/app/data/saxs_computation/jg/1jgt/1jgt.dat

CRYSTAL STRUCTURE OF BETA-LACTAM SYNTHETASE

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution