2g82

High Resolution Structures of Thermus aquaticus Glyceraldehyde-3-Phosphate Dehydrogenase: Role of 220's Loop Motion in Catalysis

Method: X-RAY DIFFRACTION D_max: 162.9 Å Quality: GOOD

▼

1. 蛋白身份与相关结构 Protein Identity & Related Structures

Glyceraldehyde-3-phosphate dehydrogenase

Thermus aquaticus

当前结构中的状态

Assembly	聚集状态	构建体	突变与修饰	配体、离子与共同组分	实验方法与环境	结构质量
1	蛋白同源多聚体同源多聚体蛋白 × 4 PDB 声明：tetrameric（4）与蛋白拷贝数一致	链 O； UniProt 1–331 链 P； UniProt 1–331 链 Q； UniProt 1–331 链 R； UniProt 1–331	非标准单体：是（mmCIF未提供具体位点）	NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 4 IPA ISOPROPYL ALCOHOL × 1 GOL GLYCEROL × 2	X-RAY DIFFRACTION X-ray结晶条件：VAPOR DIFFUSION, SITTING DROP；pH 8.3；295 K；23% PEG 300, 0.1 M Hepes, 15% isopropanol, and 5% glycerol, pH 8.3, VAPOR DIFFUSION, SITTING DROP, temperature 295K	分辨率 1.65 Å R-free 0.172
2	蛋白同源多聚体同源多聚体蛋白 × 4 PDB 声明：tetrameric（4）与蛋白拷贝数一致	链 A； UniProt 1–331 链 B； UniProt 1–331 链 C； UniProt 1–331 链 D； UniProt 1–331	非标准单体：是（mmCIF未提供具体位点）	NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 4 IPA ISOPROPYL ALCOHOL × 1 GOL GLYCEROL × 1 NA SODIUM ION × 1 PGE TRIETHYLENE GLYCOL × 1	X-RAY DIFFRACTION X-ray结晶条件：VAPOR DIFFUSION, SITTING DROP；pH 8.3；295 K；23% PEG 300, 0.1 M Hepes, 15% isopropanol, and 5% glycerol, pH 8.3, VAPOR DIFFUSION, SITTING DROP, temperature 295K	分辨率 1.65 Å R-free 0.172

数据库中的同蛋白其他状态

以下每一行都是同一 UniProt 蛋白在另一个 PDB 条目中的 biological assembly， “相对当前条目”直接指出证据层面的不同；没有差异标签表示当前已读取字段一致。

其他 PDB	相对当前条目 2G82	Assembly / 聚集状态	构建体	突变与修饰	配体、离子与非聚合物	实验方法与环境	结构质量
1CER DETERMINANTS OF ENZYME THERMOSTABILITY OBSERVED IN THE MOLECULAR STRUCTURE OF THERMUS AQUATICUS D-GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE AT 2.5 ANGSTROMS RESOLUTION 提交 1995-11-11	突变/修饰不同配体/离子不同实验环境不同结构质量不同	Assembly 1 蛋白同源多聚体同源多聚体；蛋白 × 4 PDB 声明：tetrameric	链 O 1–331（331 aa）链 P 1–331（331 aa）链 Q 1–331（331 aa）链 R 1–331（331 aa）	未记录	NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 4	X-RAY DIFFRACTION mmCIF 未提供已读取条件	分辨率 2.50 Å
1CER DETERMINANTS OF ENZYME THERMOSTABILITY OBSERVED IN THE MOLECULAR STRUCTURE OF THERMUS AQUATICUS D-GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE AT 2.5 ANGSTROMS RESOLUTION 提交 1995-11-11	突变/修饰不同配体/离子不同实验环境不同结构质量不同	Assembly 2 蛋白同源多聚体同源多聚体；蛋白 × 4 PDB 声明：tetrameric	链 A 1–331（331 aa）链 B 1–331（331 aa）链 C 1–331（331 aa）链 D 1–331（331 aa）	未记录	NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 4	X-RAY DIFFRACTION mmCIF 未提供已读取条件	分辨率 2.50 Å

共 1 个其他 PDB 条目、2 个 assembly。打开独立比较页并筛选聚集状态

查看构建体与数据证据

UniProt名称	G3P_THEAQ
Isoform	—
PDB实体	1
链与序列区间	作者链 A； PDB构建体 1–331； UniProt 1–331 作者链 B； PDB构建体 1–331； UniProt 1–331 作者链 C； PDB构建体 1–331； UniProt 1–331 作者链 D； PDB构建体 1–331； UniProt 1–331 作者链 O； PDB构建体 1–331； UniProt 1–331 作者链 P； PDB构建体 1–331； UniProt 1–331 作者链 Q； PDB构建体 1–331； UniProt 1–331 作者链 R； PDB构建体 1–331； UniProt 1–331

页面优先展示蛋白身份、当前 assembly、共同组分、聚集状态和跨 PDB 结构链接。链映射与序列区间收在“数据证据”中；数据库内部编号、导入时间和 assembly 操作表达式仅用于维护，因此不在读者页面展示。

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

▼

2. 结构基本信息 2. Structure Basics

条目编号 entry_id	2g82
沉积日期 deposition_date	2006-03-01
结构标题 title	High Resolution Structures of Thermus aquaticus Glyceraldehyde-3-Phosphate Dehydrogenase: Role of 220's Loop Motion in Catalysis
关键词 keywords	GAPDH, G3PDH, GLYCOLYSIS, OXIDOREDUCTASE, NAD, ROSSMANN FOLD; OXIDOREDUCTASE
实验方法 method	X-RAY DIFFRACTION

▼

3. SAXS 参数 (CRYSOL 理论计算) 3. SAXS Parameters (CRYSOL)

回转半径 Rg (Guinier) rg_guinier	47.74 Å
回转半径 Rg (电子) rg_electron	47.89 Å
零角强度 I(0) i0	1131400000.00
分子量 molecular_weight	281840.0 kDa
排除体积 excluded_volume	353870 Å³
包络体积 envelope_volume	447760 Å³
水化壳体积 shell_volume	78139 Å³
包络直径 envelope_diameter	172.6 Å
壳层 Rg shell_rg	51.26 Å
包络 Rg envelope_rg	47.22 Å
形状 Rg shape_rg	47.90 Å
总 Rg total_rg	47.97 Å
总原子数 total_atoms	19845
残基数 n_residues	2600
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

▼

4. P(r) 距离分布 (GNOM 反演) 4. P(r) Analysis (GNOM)

最大尺寸 Dmax dmax	162.9 Å
Rg (实空间) rg_real	47.97 Å
Rg 误差 (实空间) rg_real_error	1.49 Å
I(0) (实空间) i0_real	1.1310e+09
I(0) 误差 (实空间) i0_real_error	2.0940e+07
Rg (倒空间) rg_reciprocal	47.74 Å
I(0) (倒空间) i0_reciprocal	1131000000.0000
解质量估计 total_estimate	0.8507
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	49.4 Å
偏度 Skewness skewness	0.443
峰度 Kurtosis kurtosis	-0.431
角度范围 angular_range	— – 0.1650 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	109100000.0000
实空间数据点数 n_real_points	34
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.759; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.990; Smooth: 0.789

▶

5. 晶体学与实验 5. Crystallography & Experiment

▶

6. 实体与聚合物信息 Entities & Polymers (7)

实体 1 Entity 1 polymer

描述 description	Glyceraldehyde-3-phosphate dehydrogenase
分子量 formula_weight	35973.3 kDa
EC 编号 ec_number	1.2.1.12
来源方法 src_method	man
拷贝数 entity_count	8

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	O,P,Q,R,A,B,C,D
原子数 atom_count	22023

MKVGINGFGRIGRQVFRILHSRGVEVALINDLTDNKTLAHLLKYDSIYHRFPGEVAYDDQYLYVDGKAIRATAVKDPKEIPWAEAGVGVVIESTGVFTDADKAKAHLEGGAKKVIITAPAKGEDITIVMGVNHEAYDPSRHHIISNASCTTNSLAPVMKVLEEAFGVEKALMTTVHSYTNDQRLLDLPHKDLRRARAAAINIIPTTTGAAKATALVLPSLKGRFDGMALRVPTATGSISDITALLKREVTAEEVNAALKAAAEGPLKGILAYTEDEIVLQDIVMDPHSSIVDAKLTKALGNMVKVFAWYDNEWGYANRVADLVELVLRKGV

来源 Source

来源生物 organism	Thermus aquaticus
NCBI 分类编号 ncbi_taxonomy_id	271
宿主生物 host_organism	Escherichia coli

实体 2 Entity 2 non-polymer

描述 description	NICOTINAMIDE-ADENINE-DINUCLEOTIDE
分子量 formula_weight	663.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	8

实体 3 Entity 3 non-polymer

描述 description	ISOPROPYL ALCOHOL
分子量 formula_weight	60.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

实体 4 Entity 4 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	3

实体 5 Entity 5 non-polymer

描述 description	SODIUM ION
分子量 formula_weight	23.0 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

实体 6 Entity 6 non-polymer

描述 description	TRIETHYLENE GLYCOL
分子量 formula_weight	150.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

实体 7 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	1586

▼

7. 折叠分类 (SCOP + CATH) 32 domains

SCOP 2.08 (16 domains)

结构域编号 domain_id	d2g82a1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain

结构域编号 domain_id	d2g82a2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.81 — FwdE/GAPDH domain-like
超家族 Superfamily superfamily	d.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
家族 Family family	d.81.1.1 — GAPDH-like

结构域编号 domain_id	d2g82b1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain

结构域编号 domain_id	d2g82b2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.81 — FwdE/GAPDH domain-like
超家族 Superfamily superfamily	d.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
家族 Family family	d.81.1.1 — GAPDH-like

结构域编号 domain_id	d2g82c1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain

结构域编号 domain_id	d2g82c2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.81 — FwdE/GAPDH domain-like
超家族 Superfamily superfamily	d.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
家族 Family family	d.81.1.1 — GAPDH-like

结构域编号 domain_id	d2g82d1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain

结构域编号 domain_id	d2g82d2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.81 — FwdE/GAPDH domain-like
超家族 Superfamily superfamily	d.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
家族 Family family	d.81.1.1 — GAPDH-like

结构域编号 domain_id	d2g82o1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain

结构域编号 domain_id	d2g82o2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.81 — FwdE/GAPDH domain-like
超家族 Superfamily superfamily	d.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
家族 Family family	d.81.1.1 — GAPDH-like

结构域编号 domain_id	d2g82p1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain

结构域编号 domain_id	d2g82p2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.81 — FwdE/GAPDH domain-like
超家族 Superfamily superfamily	d.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
家族 Family family	d.81.1.1 — GAPDH-like

结构域编号 domain_id	d2g82q1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain

结构域编号 domain_id	d2g82q2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.81 — FwdE/GAPDH domain-like
超家族 Superfamily superfamily	d.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
家族 Family family	d.81.1.1 — GAPDH-like

结构域编号 domain_id	d2g82r1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
超家族 Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
家族 Family family	c.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain

结构域编号 domain_id	d2g82r2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.81 — FwdE/GAPDH domain-like
超家族 Superfamily superfamily	d.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
家族 Family family	d.81.1.1 — GAPDH-like

CATH v4.4 (16 domains)

结构域编号 domain_id	2g82A01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2g82A02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	360 — Dihydrodipicolinate Reductase; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Dihydrodipicolinate Reductase; domain 2

结构域编号 domain_id	2g82B01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2g82B02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	360 — Dihydrodipicolinate Reductase; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Dihydrodipicolinate Reductase; domain 2

结构域编号 domain_id	2g82C01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2g82C02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	360 — Dihydrodipicolinate Reductase; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Dihydrodipicolinate Reductase; domain 2

结构域编号 domain_id	2g82D01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2g82D02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	360 — Dihydrodipicolinate Reductase; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Dihydrodipicolinate Reductase; domain 2

结构域编号 domain_id	2g82O01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2g82O02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	360 — Dihydrodipicolinate Reductase; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Dihydrodipicolinate Reductase; domain 2

结构域编号 domain_id	2g82P01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2g82P02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	360 — Dihydrodipicolinate Reductase; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Dihydrodipicolinate Reductase; domain 2

结构域编号 domain_id	2g82Q01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2g82Q02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	360 — Dihydrodipicolinate Reductase; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Dihydrodipicolinate Reductase; domain 2

结构域编号 domain_id	2g82R01
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	720 — NAD(P)-binding Rossmann-like Domain

结构域编号 domain_id	2g82R02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	360 — Dihydrodipicolinate Reductase; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Dihydrodipicolinate Reductase; domain 2

▶

8. 引用文献 (1)

▶

晶胞边长 a length_a	141.549 Å
晶胞边长 b length_b	147.403 Å
晶胞边长 c length_c	147.669 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	32

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	1.650 Å
最低分辨率 resolution_low	65.940 Å
R 因子 r_factor	—
R_work r_work	0.1580
R_free r_free	0.1720