1szr

A Dimer interface mutant of ornithine decarboxylase reveals structure of gem diamine intermediate

Method: X-RAY DIFFRACTION D_max: 122.3 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	1szr
沉积日期 deposition_date	2004-04-06
结构标题 title	A Dimer interface mutant of ornithine decarboxylase reveals structure of gem diamine intermediate
关键词 keywords	;pyridoxal phosphate, PXP, ODC, ornithine decarboxylase, Lyase, gem-diamine, carbinolamine, dimer interface, beta-alpha-barrels, greek key ;; LYASE
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	37.35 Å
回转半径 Rg (电子) rg_electron	37.01 Å
零角强度 I(0) i0	364015000.00
分子量 molecular_weight	158010.0 kDa
排除体积 excluded_volume	198870 Å³
包络体积 envelope_volume	258520 Å³
水化壳体积 shell_volume	57645 Å³
包络直径 envelope_diameter	131.4 Å
壳层 Rg shell_rg	43.72 Å
包络 Rg envelope_rg	36.57 Å
形状 Rg shape_rg	36.99 Å
总 Rg total_rg	37.54 Å
总原子数 total_atoms	11133
残基数 n_residues	1414
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	122.3 Å
Rg (实空间) rg_real	37.29 Å
Rg 误差 (实空间) rg_real_error	1.18 Å
I(0) (实空间) i0_real	3.6400e+08
I(0) 误差 (实空间) i0_real_error	6.6270e+06
Rg (倒空间) rg_reciprocal	37.33 Å
I(0) (倒空间) i0_reciprocal	364000000.0000
解质量估计 total_estimate	0.8744
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	49.5 Å
偏度 Skewness skewness	0.320
峰度 Kurtosis kurtosis	-0.169
角度范围 angular_range	— – 0.2100 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	90970000.0000
实空间数据点数 n_real_points	43
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.861; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.784

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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	Ornithine decarboxylase
分子量 formula_weight	47004.4 kDa
EC 编号 ec_number	4.1.1.17
突变 mutation	K294A
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	C,D,A,B
原子数 atom_count	11393

GAMDIVVNDDLSCRFLEGFNTRDALCKKISMNTCDEGDPFFVADLGDIVRKHETWKKCLPRVTPFYAVKCNDDWRVLGTLAALGTGFDCASNTEIQRVRGIGVPPEKIIYANPCKQISHIRYARDSGVDVMTFDCVDELEKVAKTHPKAKMVLRISTDDSLARCRLSVKFGAKVEDCRFILEQAKKLNIDVTGVSFHVGSGSTDASTFAQAISDSRFVFDMGTELGFNMHILDIGGGFPGTRDAPLKFEEIAGVINNALEKHFPPDLKLTIVAEPGRYYVASAFTLAVNVIAKAVTPGVQTDVGAHAESNAQSFMYYVNDGVYGSFNCILYDHAVVRPLPQREPIPNEKLYPSSVWGPTCDGLDQIVERYYLPEMQVGEWLLFEDMGAYTVVGTSSFNGFQSPTIYYVVSGLPDHVVRELKSQKS

来源 Source

来源生物 organism	Trypanosoma brucei brucei
NCBI 分类编号 ncbi_taxonomy_id	5702
宿主生物 host_organism	Escherichia coli BL21

Entity 2 non-polymer

描述 description	PYRIDOXINE-5'-PHOSPHATE
分子量 formula_weight	249.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 3 non-polymer

描述 description	N-GLYCINE-[3-HYDROXY-2-METHYL-5-PHOSPHONOOXYMETHYL-PYRIDIN-4-YL-METHANE]
分子量 formula_weight	306.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

Entity 4 non-polymer

描述 description	N~2~-({3-HYDROXY-2-METHYL-5-[(PHOSPHONOOXY)METHYL]PYRIDIN-4-YL}METHYL)-D-ORNITHINE
分子量 formula_weight	363.3 kDa
来源方法 src_method	syn
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	260

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6. 折叠分类 (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

结构域编号 domain_id	d1szra1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.49 — Domain of alpha and beta subunits of F1 ATP synthase-like
超家族 Superfamily superfamily	b.49.2 — Alanine racemase C-terminal domain-like
家族 Family family	b.49.2.3 — Eukaryotic ODC-like

结构域编号 domain_id	d1szra2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamily	c.1.6 — PLP-binding barrel
家族 Family family	c.1.6.1 — Alanine racemase-like, N-terminal domain

结构域编号 domain_id	d1szrb1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.49 — Domain of alpha and beta subunits of F1 ATP synthase-like
超家族 Superfamily superfamily	b.49.2 — Alanine racemase C-terminal domain-like
家族 Family family	b.49.2.3 — Eukaryotic ODC-like

结构域编号 domain_id	d1szrb2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamily	c.1.6 — PLP-binding barrel
家族 Family family	c.1.6.1 — Alanine racemase-like, N-terminal domain

结构域编号 domain_id	d1szrc1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.49 — Domain of alpha and beta subunits of F1 ATP synthase-like
超家族 Superfamily superfamily	b.49.2 — Alanine racemase C-terminal domain-like
家族 Family family	b.49.2.3 — Eukaryotic ODC-like

结构域编号 domain_id	d1szrc2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamily	c.1.6 — PLP-binding barrel
家族 Family family	c.1.6.1 — Alanine racemase-like, N-terminal domain

结构域编号 domain_id	d1szrd1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.49 — Domain of alpha and beta subunits of F1 ATP synthase-like
超家族 Superfamily superfamily	b.49.2 — Alanine racemase C-terminal domain-like
家族 Family family	b.49.2.3 — Eukaryotic ODC-like

结构域编号 domain_id	d1szrd2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamily	c.1.6 — PLP-binding barrel
家族 Family family	c.1.6.1 — Alanine racemase-like, N-terminal domain

CATH v4.4 (8 domains)

结构域编号 domain_id	1szrA01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	40 — Beta Barrel
拓扑 Topology topology	37 — Lyase, Ornithine Decarboxylase; Chain A, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Lyase, Ornithine Decarboxylase; Chain A, domain 1

结构域编号 domain_id	1szrA02
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	10 — Alanine racemase

结构域编号 domain_id	1szrB01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	40 — Beta Barrel
拓扑 Topology topology	37 — Lyase, Ornithine Decarboxylase; Chain A, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Lyase, Ornithine Decarboxylase; Chain A, domain 1

结构域编号 domain_id	1szrB02
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	10 — Alanine racemase

结构域编号 domain_id	1szrC01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	40 — Beta Barrel
拓扑 Topology topology	37 — Lyase, Ornithine Decarboxylase; Chain A, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Lyase, Ornithine Decarboxylase; Chain A, domain 1

结构域编号 domain_id	1szrC02
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	10 — Alanine racemase

结构域编号 domain_id	1szrD01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	40 — Beta Barrel
拓扑 Topology topology	37 — Lyase, Ornithine Decarboxylase; Chain A, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Lyase, Ornithine Decarboxylase; Chain A, domain 1

结构域编号 domain_id	1szrD02
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	10 — Alanine racemase

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7. 引用文献 (1)

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晶胞边长 a length_a	67.468 Å
晶胞边长 b length_b	152.444 Å
晶胞边长 c length_c	155.007 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	16

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	2.150 Å
最低分辨率 resolution_low	35.000 Å
R 因子 r_factor	—
R_work r_work	0.2440
R_free r_free	0.2790

fit	/app/data/saxs_computation/sz/1szr/1szr.fit
pddf	/app/data/pr_computation/sz/1szr/1szr.pr.out
profile	/app/data/saxs_computation/sz/1szr/1szr.dat