1fp4

CRYSTAL STRUCTURE OF THE ALPHA-H195Q MUTANT OF NITROGENASE

Method: X-RAY DIFFRACTION D_max: 116.8 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	1fp4
沉积日期 deposition_date	2000-08-30
结构标题 title	CRYSTAL STRUCTURE OF THE ALPHA-H195Q MUTANT OF NITROGENASE
关键词 keywords	Iron-Sulfur-Molybdenum protein, OXIDOREDUCTASE; OXIDOREDUCTASE
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	38.09 Å
回转半径 Rg (电子) rg_electron	37.46 Å
零角强度 I(0) i0	781754000.00
分子量 molecular_weight	227520.0 kDa
排除体积 excluded_volume	283130 Å³
包络体积 envelope_volume	324990 Å³
水化壳体积 shell_volume	68826 Å³
包络直径 envelope_diameter	122.0 Å
壳层 Rg shell_rg	45.99 Å
包络 Rg envelope_rg	37.52 Å
形状 Rg shape_rg	37.46 Å
总 Rg total_rg	37.88 Å
总原子数 total_atoms	15862
残基数 n_residues	1979
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	116.8 Å
Rg (实空间) rg_real	37.98 Å
Rg 误差 (实空间) rg_real_error	0.54 Å
I(0) (实空间) i0_real	7.8180e+08
I(0) 误差 (实空间) i0_real_error	1.1600e+07
Rg (倒空间) rg_reciprocal	38.05 Å
I(0) (倒空间) i0_reciprocal	781800000.0000
解质量估计 total_estimate	0.8855
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	44.5 Å
偏度 Skewness skewness	0.244
峰度 Kurtosis kurtosis	-0.555
角度范围 angular_range	— – 0.2100 Å⁻¹
当前正则化参数 α current_alpha	0.0001
最高正则化参数 α highest_alpha	265500000.0000
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: 0.956; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.645

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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 (7)

Entity 1 polymer

描述 description	NITROGENASE MOLYBDENUM-IRON PROTEIN ALPHA CHAIN
分子量 formula_weight	55353.0 kDa
EC 编号 ec_number	1.18.6.1
突变 mutation	H195Q
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,C
原子数 atom_count	16295

MTGMSREEVESLIQEVLEVYPEKARKDRNKHLAVNDPAVTQSKKCIISNKKSQPGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIGTTGVNAFVTMNFTSDFQEKDIVFGGDKKLAKLIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGVSQSLGQHIANDAVRDWVLGKRDEDTTFASTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKTIESLRAIAAKFDESIQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWDYSGPYHGFDGFAIFARDMDMTLNNPCWKKLQAPWEASEGAEKVAASA

来源 Source

来源生物 organism	Azotobacter vinelandii
NCBI 分类编号 ncbi_taxonomy_id	354

Entity 2 polymer

描述 description	NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN
分子量 formula_weight	59535.9 kDa
EC 编号 ec_number	1.18.6.1
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	B,D

MSQQVDKIKASYPLFLDQDYKDMLAKKRDGFEEKYPQDKIDEVFQWTTTKEYQELNFQREALTVNPAKACQPLGAVLCALGFEKTMPYVHGSQGCVAYFRSYFNRHFREPVSCVSDSMTEDAAVFGGQQNMKDGLQNCKATYKPDMIAVSTTCMAEVIGDDLNAFINNSKKEGFIPDEFPVPFAHTPSFVGSHVTGWDNMFEGIARYFTLKSMDDKVVGSNKKINIVPGFETYLGNFRVIKRMLSEMGVGYSLLSDPEEVLDTPADGQFRMYAGGTTQEEMKDAPNALNTVLLQPWHLEKTKKFVEGTWKHEVPKLNIPMGLDWTDEFLMKVSEISGQPIPASLTKERGRLVDMMTDSHTWLHGKRFALWGDPDFVMGLVKFLLELGCEPVHILCHNGNKRWKKAVDAILAASPYGKNATVYIGKDLWHLRSLVFTDKPDFMIGNSYGKFIQRDTLHKGKEFEVPLIRIGFPIFDRHHLHRSTTLGYEGAMQILTTLVNSILERLDEETRGMQATDYNHDLVR

来源 Source

来源生物 organism	Azotobacter vinelandii
NCBI 分类编号 ncbi_taxonomy_id	354

Entity 3 non-polymer

描述 description	3-HYDROXY-3-CARBOXY-ADIPIC ACID
分子量 formula_weight	206.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 4 non-polymer

描述 description	FE-MO-S CLUSTER
分子量 formula_weight	775.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 5 non-polymer

描述 description	FE-S CLUSTER
分子量 formula_weight	703.3 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

Entity 6 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 7 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	433

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6. 折叠分类 (SCOP + CATH) 18 domains

SCOP 2.08 (4 domains)

结构域编号 domain_id	d1fp4a_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.92 — Chelatase-like
超家族 Superfamily superfamily	c.92.2 — 'Helical backbone' metal receptor
家族 Family family	c.92.2.3 — Nitrogenase iron-molybdenum protein

结构域编号 domain_id	d1fp4b_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.92 — Chelatase-like
超家族 Superfamily superfamily	c.92.2 — 'Helical backbone' metal receptor
家族 Family family	c.92.2.3 — Nitrogenase iron-molybdenum protein

结构域编号 domain_id	d1fp4c_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.92 — Chelatase-like
超家族 Superfamily superfamily	c.92.2 — 'Helical backbone' metal receptor
家族 Family family	c.92.2.3 — Nitrogenase iron-molybdenum protein

结构域编号 domain_id	d1fp4d_
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.92 — Chelatase-like
超家族 Superfamily superfamily	c.92.2 — 'Helical backbone' metal receptor
家族 Family family	c.92.2.3 — Nitrogenase iron-molybdenum protein

CATH v4.4 (14 domains)

结构域编号 domain_id	1fp4A01
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4A02
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4A03
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4B01
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4B02
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4B03
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4B04
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	89 — Nitrogenase Molybdenum-iron Protein, subunit B; domain 4
同源超家族 H-superfamily homologous superfamily	10 — Nitrogenase Molybdenum-iron Protein, subunit B, domain 4

结构域编号 domain_id	1fp4C01
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4C02
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4C03
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4D01
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4D02
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4D03
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	1980 — Nitrogenase molybdenum iron protein domain

结构域编号 domain_id	1fp4D04
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	89 — Nitrogenase Molybdenum-iron Protein, subunit B; domain 4
同源超家族 H-superfamily homologous superfamily	10 — Nitrogenase Molybdenum-iron Protein, subunit B, domain 4

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7. 引用文献 (1)

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晶胞边长 a length_a	107.200 Å
晶胞边长 b length_b	130.200 Å
晶胞边长 c length_c	80.400 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	111.20 °
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	2.500 Å
最低分辨率 resolution_low	20.000 Å
R 因子 r_factor	—
R_work r_work	0.1840
R_free r_free	0.2400

fit	/app/data/saxs_computation/fp/1fp4/1fp4.fit
pddf	/app/data/pr_computation/fp/1fp4/1fp4.pr.out
profile	/app/data/saxs_computation/fp/1fp4/1fp4.dat

CRYSTAL STRUCTURE OF THE ALPHA-H195Q MUTANT OF NITROGENASE

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 (7)

Entity 1 polymer

聚合体 Polymer

来源 Source

Entity 2 polymer

聚合体 Polymer

来源 Source

Entity 3 non-polymer

Entity 4 non-polymer

Entity 5 non-polymer

Entity 6 non-polymer

Entity 7 water

6. 折叠分类 (SCOP + CATH) 18 domains

SCOP 2.08 (4 domains)

CATH v4.4 (14 domains)

7. 引用文献 (1)

8. 文件与曲线 (10)

Files (7)

Curves (3)