SAXSdb — 2e9b

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	2e9b
沉积日期 deposition_date	2007-01-24
结构标题 title	Crystal structure of pullulanase type I from Bacillus subtilis str. 168 complexed with maltose
关键词 keywords	smultiple domain, beta-alpha-barrel, alpha-amylase-family maltose, 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	42.51 Å
回转半径 Rg (电子) rg_electron	42.12 Å
零角强度 I(0) i0	388476000.00
分子量 molecular_weight	162470.0 kDa
排除体积 excluded_volume	203320 Å³
包络体积 envelope_volume	274100 Å³
水化壳体积 shell_volume	53761 Å³
包络直径 envelope_diameter	135.9 Å
壳层 Rg shell_rg	47.57 Å
包络 Rg envelope_rg	41.77 Å
形状 Rg shape_rg	42.09 Å
总 Rg total_rg	42.49 Å
总原子数 total_atoms	11465
残基数 n_residues	1424
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	137.1 Å
Rg (实空间) rg_real	42.53 Å
Rg 误差 (实空间) rg_real_error	1.26 Å
I(0) (实空间) i0_real	3.8850e+08
I(0) 误差 (实空间) i0_real_error	6.5640e+06
Rg (倒空间) rg_reciprocal	42.51 Å
I(0) (倒空间) i0_reciprocal	388500000.0000
解质量估计 total_estimate	0.8844
解质量评级 solution_quality	GOOD a GOOD solution
P(r) 峰数 n_peaks	1
主峰位置 r_peak_primary	37.1 Å
偏度 Skewness skewness	0.225
峰度 Kurtosis kurtosis	-0.755
角度范围 angular_range	— – 0.1850 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	87840000.0000
实空间数据点数 n_real_points	38
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: 0.969; Smooth: 0.783

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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 (8)

Entity 1 polymer

描述 description	AmyX protein
分子量 formula_weight	81206.7 kDa
EC 编号 ec_number	3.2.1.41
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	11961

MVSIRRSFEAYVDDMNIITVLIPAEQKEIMTPPFRLETEITDFPLAVREEYSLEAKYKYVCVSDHPVTFGKIHCVRASSGHKTDLQIGAVIRTAAFDDEFYYDGELGAVYTADHTVFKVWAPAATSAAVKLSHPNKSGRTFQMTRLEKGVYAVTVTGDLHGYEYLFCICNNSEWMETVDQYAKAVTVNGEKGVVLRPDQMKWTAPLKPFSHPVDAVIYETHLRDFSIHENSGMINKGKYLALTETDTQTANGSSSGLAYVKELGVTHVELLPVNDFAGVDEEKPLDAYNWGYNPLHFFAPEGSYASNPHDPQTRKTELKQMINTLHQHGLRVILDVVFNHVYKRENSPFEKTVPGYFFRHDECGKPSNGTGVGNDIASERRMARKFIADCVVYWLEEYNVDGFRFDLLGILDIDTVLYMKEKATKAKPGILLFGEGWDLATPLPHEQKAALANAPRMPGIGFFNDMFRDAVKGNTFHLKATGFALGNGESAQAVMHGIAGSSGWKALAPIVPEPSQSINYVESHDNHTFWDKMSFALPQENDSRKRSRQRLAVAIILLAQGVPFIHSGQEFFRTKQGVENSYQSSDSINQLDWDRRETFKEDVHYIRRLISLRKAHPAFRLRSAADIQRHLECLTLKEHLIAYRLYDLDEVDEWKDIIVIHHASPDSVEWRLPNDIPYRLLCDPSGFQEDPTEIKKTVAVNGIGTVILYLASDLKSFA

来源 Source

来源生物 organism	Bacillus subtilis
NCBI 分类编号 ncbi_taxonomy_id	1423
宿主生物 host_organism	Escherichia coli

Entity 2 branched

描述 description	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose
分子量 formula_weight	504.4 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 3 branched

描述 description	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose
分子量 formula_weight	342.3 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 4 branched

描述 description	beta-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose
分子量 formula_weight	504.4 kDa
来源方法 src_method	man
拷贝数 entity_count	1

Entity 5 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	2

Entity 6 non-polymer

描述 description	ACETATE ION
分子量 formula_weight	59.0 kDa
来源方法 src_method	syn
拷贝数 entity_count	3

Entity 7 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	2

Entity 8 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	496

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6. 折叠分类 (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

结构域编号 domain_id	2e9bA01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	2320 —

结构域编号 domain_id	2e9bA02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	2e9bA03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily	80 — Glycosidases

结构域编号 domain_id	2e9bA04
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	1180 — Golgi alpha-mannosidase II

结构域编号 domain_id	2e9bB01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	2320 —

结构域编号 domain_id	2e9bB02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	2e9bB03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily	80 — Glycosidases

结构域编号 domain_id	2e9bB04
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	1180 — Golgi alpha-mannosidase II

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7. 引用文献 (2)

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晶胞边长 a length_a	71.031 Å
晶胞边长 b length_b	129.178 Å
晶胞边长 c length_c	192.060 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	90.00 °
晶胞分子数 Z z_pdb	8

空间群 space_group	P 21 21 21
空间群编号 int_tables_number	19
晶系 crystal_system	—

分辨率 resolution	2.300 Å
最低分辨率 resolution_low	14.970 Å
R 因子 r_factor	0.1940
R_work r_work	0.1940
R_free r_free	0.2420

fit	/app/data/saxs_computation/e9/2e9b/2e9b.fit
pddf	/app/data/pr_computation/e9/2e9b/2e9b.pr.out
profile	/app/data/saxs_computation/e9/2e9b/2e9b.dat

Crystal structure of pullulanase type I from Bacillus subtilis str. 168 complexed with maltose

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution