1kog

Crystal structure of E. coli threonyl-tRNA synthetase interacting with the essential domain of its mRNA operator

Method: X-RAY DIFFRACTION

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

Threonyl-tRNA synthetase

Escherichia coli

当前结构中的状态

Assembly	物理组成	蛋白状态	分子拷贝数	共同组分	数据核对
1	蛋白–RNA	同源多聚体	蛋白 2 RNA 2	Threonyl-tRNA synthetase mRNA × 2 ZINC ION × 2 5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE × 2 water × 4	与全部聚合物一致
2	蛋白–RNA	同源多聚体	蛋白 2 RNA 2	Threonyl-tRNA synthetase mRNA × 2 ZINC ION × 2 5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE × 2 water × 4	与全部聚合物一致
3	蛋白–RNA	同源多聚体	蛋白 2 RNA 2	Threonyl-tRNA synthetase mRNA × 2 ZINC ION × 2 5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE × 2 water × 4	与全部聚合物一致
4	蛋白–RNA	同源多聚体	蛋白 2 RNA 2	Threonyl-tRNA synthetase mRNA × 2 ZINC ION × 2 5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE × 2 water × 4	与全部聚合物一致
5	蛋白–RNA	同源多聚体	蛋白 2 RNA 2	Threonyl-tRNA synthetase mRNA × 2 ZINC ION × 2 5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE × 2 water × 4	与全部聚合物一致

数据库中的同蛋白其他状态

查看构建体与数据证据

UniProt名称	SYT_ECOLI
Isoform	—
PDB实体	2
链与序列区间	作者链 A； PDB构建体 1–401； UniProt 242–642 作者链 B； PDB构建体 1–401； UniProt 242–642 作者链 C； PDB构建体 1–401； UniProt 242–642 作者链 D； PDB构建体 1–401； UniProt 242–642 作者链 E； PDB构建体 1–401； UniProt 242–642 作者链 F； PDB构建体 1–401； UniProt 242–642 作者链 G； PDB构建体 1–401； UniProt 242–642 作者链 H； PDB构建体 1–401； UniProt 242–642

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。

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2. 结构基本信息 2. Structure Basics

条目编号 entry_id	1kog
沉积日期 deposition_date	2001-12-20
结构标题 title	Crystal structure of E. coli threonyl-tRNA synthetase interacting with the essential domain of its mRNA operator
关键词 keywords	Protein-RNA complex, RNA stem-loop, RNA double helix, RNA base triples, LIGASE-RNA COMPLEX; LIGASE/RNA
实验方法 method	X-RAY DIFFRACTION

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3. Official assembly/model 理论 SAXS Official SAXS Profiles

页面只读取最新 assembly 计算结果。每一条曲线都对应明确的 PDB、official biological assembly 和 coordinate model。

1kog__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

下载该曲线 .dat

1kog__assembly_1__model_1 | I(q)

100 个绘图点；横轴和纵轴均采用对数尺度。

1kog__assembly_1__model_1 | P(r) · Pending

P(r) 将按相同 assembly/model 分别计算和展示。

Rg（Guinier）	32.95 Å
Rg（电子密度）	30.73 Å
总 Rg	31.56 Å
原子数	8188
残基数	876
排除体积	139380 Å³
最大 q	0.500 Å⁻¹

Assembly	Model	结构单元	聚集说明	状态	CRYSOL	操作
1	1	`1kog__assembly_1__model_1`	tetrameric （4）	成功	4.1.3-1-20251215 (887e7ef)	查看下载
2	1	`1kog__assembly_2__model_1`	tetrameric （4）	成功	4.1.3-1-20251215 (887e7ef)	查看下载
3	1	`1kog__assembly_3__model_1`	tetrameric （4）	成功	4.1.3-1-20251215 (887e7ef)	查看下载
4	1	`1kog__assembly_4__model_1`	tetrameric （4）	成功	4.1.3-1-20251215 (887e7ef)	查看下载
5	1	`1kog__assembly_5__model_1`	tetrameric （4）	成功	4.1.3-1-20251215 (887e7ef)	查看下载

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4. 晶体学与实验 4. Crystallography & Experiment

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5. 实体与聚合物信息 Entities & Polymers (5)

实体 1 Entity 1 polymer

描述 description	Threonyl-tRNA synthetase mRNA
分子量 formula_weight	11834.0 kDa
突变 mutation	U(-49)G, U(-48)G, U(-71)C, A(-15)G, A(-14)C, A(-13)C
来源方法 src_method	syn
拷贝数 entity_count	8

聚合物 Polymer

聚合物类型 type	polyribonucleotide
链编号 strand_id	I,J,K,L,M,N,O,P
原子数 atom_count	32922

GGCGUAUGUGAUCUUUCGUGUGGGUCACCACUGCGCC

实体 2 Entity 2 polymer

描述 description	Threonyl-tRNA synthetase
分子量 formula_weight	46725.2 kDa
EC 编号 ec_number	6.1.1.3
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	A,B,C,D,E,F,G,H

RDHRKIGKQLDLYHMQEEAPGMVFWHNDGWTIFRELEVFVRSKLKEYQYQEVKGPFMMDRVLWEKTGHWDNYKDAMFTTSSENREYCIKPMNCPGHVQIFNQGLKSYRDLPLRMAEFGSCHRNEPSGSLHGLMRVRGFTQDDAHIFCTEEQIRDEVNGCIRLVYDMYSTFGFEKIVVKLSTRPEKRIGSDEMWDRAEADLAVALEENNIPFEYQLGEGAFYGPKIEFTLYDCLDRAWQCGTVQLDFSLPSRLSASYVGEDNERKVPVMIHRAILGSMERFIGILTEEFAGFFPTWLAPVQVVIMNITDSQSEYVNELTQKLSNAGIRVKADLRNEKIGFKIREHTLRRVPYMLVCGDKEVESGKVAVRTRRGKDLGSMDVNEVIEKLQQEIRSRSLKQLEE

来源 Source

来源生物 organism	Escherichia coli
NCBI 分类编号 ncbi_taxonomy_id	562
宿主生物 host_organism	Escherichia coli

实体 3 Entity 3 non-polymer

描述 description	ZINC ION
分子量 formula_weight	65.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	8

实体 4 Entity 4 non-polymer

描述 description	5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE
分子量 formula_weight	447.4 kDa
来源方法 src_method	syn
拷贝数 entity_count	8

实体 5 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	170

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6. 折叠分类 (SCOP + CATH) 32 domains

SCOP 2.08 (16 domains)

结构域编号 domain_id	d1koga1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.51 — Anticodon-binding domain-like
超家族 Superfamily superfamily	c.51.1 — Class II aaRS ABD-related
家族 Family family	c.51.1.1 — Anticodon-binding domain of Class II aaRS

结构域编号 domain_id	d1koga2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.104 — Class II aaRS and biotin synthetases
超家族 Superfamily superfamily	d.104.1 — Class II aaRS and biotin synthetases
家族 Family family	d.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain

结构域编号 domain_id	d1kogb1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.51 — Anticodon-binding domain-like
超家族 Superfamily superfamily	c.51.1 — Class II aaRS ABD-related
家族 Family family	c.51.1.1 — Anticodon-binding domain of Class II aaRS

结构域编号 domain_id	d1kogb2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.104 — Class II aaRS and biotin synthetases
超家族 Superfamily superfamily	d.104.1 — Class II aaRS and biotin synthetases
家族 Family family	d.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain

结构域编号 domain_id	d1kogc1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.51 — Anticodon-binding domain-like
超家族 Superfamily superfamily	c.51.1 — Class II aaRS ABD-related
家族 Family family	c.51.1.1 — Anticodon-binding domain of Class II aaRS

结构域编号 domain_id	d1kogc2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.104 — Class II aaRS and biotin synthetases
超家族 Superfamily superfamily	d.104.1 — Class II aaRS and biotin synthetases
家族 Family family	d.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain

结构域编号 domain_id	d1kogd1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.51 — Anticodon-binding domain-like
超家族 Superfamily superfamily	c.51.1 — Class II aaRS ABD-related
家族 Family family	c.51.1.1 — Anticodon-binding domain of Class II aaRS

结构域编号 domain_id	d1kogd2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.104 — Class II aaRS and biotin synthetases
超家族 Superfamily superfamily	d.104.1 — Class II aaRS and biotin synthetases
家族 Family family	d.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain

结构域编号 domain_id	d1koge1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.51 — Anticodon-binding domain-like
超家族 Superfamily superfamily	c.51.1 — Class II aaRS ABD-related
家族 Family family	c.51.1.1 — Anticodon-binding domain of Class II aaRS

结构域编号 domain_id	d1koge2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.104 — Class II aaRS and biotin synthetases
超家族 Superfamily superfamily	d.104.1 — Class II aaRS and biotin synthetases
家族 Family family	d.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain

结构域编号 domain_id	d1kogf1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.51 — Anticodon-binding domain-like
超家族 Superfamily superfamily	c.51.1 — Class II aaRS ABD-related
家族 Family family	c.51.1.1 — Anticodon-binding domain of Class II aaRS

结构域编号 domain_id	d1kogf2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.104 — Class II aaRS and biotin synthetases
超家族 Superfamily superfamily	d.104.1 — Class II aaRS and biotin synthetases
家族 Family family	d.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain

结构域编号 domain_id	d1kogg1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.51 — Anticodon-binding domain-like
超家族 Superfamily superfamily	c.51.1 — Class II aaRS ABD-related
家族 Family family	c.51.1.1 — Anticodon-binding domain of Class II aaRS

结构域编号 domain_id	d1kogg2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.104 — Class II aaRS and biotin synthetases
超家族 Superfamily superfamily	d.104.1 — Class II aaRS and biotin synthetases
家族 Family family	d.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain

结构域编号 domain_id	d1kogh1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.51 — Anticodon-binding domain-like
超家族 Superfamily superfamily	c.51.1 — Class II aaRS ABD-related
家族 Family family	c.51.1.1 — Anticodon-binding domain of Class II aaRS

结构域编号 domain_id	d1kogh2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.104 — Class II aaRS and biotin synthetases
超家族 Superfamily superfamily	d.104.1 — Class II aaRS and biotin synthetases
家族 Family family	d.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain

CATH v4.4 (16 domains)

结构域编号 domain_id	1kogA01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	930 — BirA Bifunctional Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Bira Bifunctional Protein; Domain 2

结构域编号 domain_id	1kogA02
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	800 — Anticodon-binding domain

结构域编号 domain_id	1kogB01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	930 — BirA Bifunctional Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Bira Bifunctional Protein; Domain 2

结构域编号 domain_id	1kogB02
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	800 — Anticodon-binding domain

结构域编号 domain_id	1kogC01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	930 — BirA Bifunctional Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Bira Bifunctional Protein; Domain 2

结构域编号 domain_id	1kogC02
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	800 — Anticodon-binding domain

结构域编号 domain_id	1kogD01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	930 — BirA Bifunctional Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Bira Bifunctional Protein; Domain 2

结构域编号 domain_id	1kogD02
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	800 — Anticodon-binding domain

结构域编号 domain_id	1kogE01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	930 — BirA Bifunctional Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Bira Bifunctional Protein; Domain 2

结构域编号 domain_id	1kogE02
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	800 — Anticodon-binding domain

结构域编号 domain_id	1kogF01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	930 — BirA Bifunctional Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Bira Bifunctional Protein; Domain 2

结构域编号 domain_id	1kogF02
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	800 — Anticodon-binding domain

结构域编号 domain_id	1kogG01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	930 — BirA Bifunctional Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Bira Bifunctional Protein; Domain 2

结构域编号 domain_id	1kogG02
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	800 — Anticodon-binding domain

结构域编号 domain_id	1kogH01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	930 — BirA Bifunctional Protein; domain 2
同源超家族 H-superfamily homologous superfamily	10 — Bira Bifunctional Protein; Domain 2

结构域编号 domain_id	1kogH02
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	800 — Anticodon-binding domain

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晶胞边长 a length_a	188.450 Å
晶胞边长 b length_b	101.740 Å
晶胞边长 c length_c	199.340 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	114.40 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	16

空间群 space_group	P 1 2 1
空间群编号 int_tables_number	3
晶系 crystal_system	—

分辨率 resolution	3.500 Å
最低分辨率 resolution_low	29.800 Å
R 因子 r_factor	0.2510
R_work r_work	0.2510
R_free r_free	0.2870

Crystal structure of E. coli threonyl-tRNA synthetase interacting with the essential domain of its mRNA operator

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

Threonyl-tRNA synthetase

当前结构中的状态

数据库中的同蛋白其他状态

2. 结构基本信息 2. Structure Basics

3. Official assembly/model 理论 SAXS Official SAXS Profiles

1kog__assembly_1__model_1

1kog__assembly_1__model_1 | I(q)

1kog__assembly_1__model_1 | P(r) · Pending

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. 实体与聚合物信息 Entities & Polymers (5)

实体 1 Entity 1 polymer

聚合物 Polymer

实体 2 Entity 2 polymer

聚合物 Polymer

来源 Source

实体 3 Entity 3 non-polymer

实体 4 Entity 4 non-polymer

实体 5 Entity 5 water

6. 折叠分类 (SCOP + CATH) 32 domains

SCOP 2.08 (16 domains)

CATH v4.4 (16 domains)

7. 引用文献 (1)

Crystal structure of E. coli threonyl-tRNA synthetase interacting with the essential domain of its mRNA operator

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

Threonyl-tRNA synthetase

当前结构中的状态

数据库中的同蛋白其他状态

单体

同源二聚体

同源四聚体

其他同源多聚体

异源或核酸复合物

2. 结构基本信息 2. Structure Basics

3. Official assembly/model 理论 SAXS Official SAXS Profiles

1kog__assembly_1__model_1

1kog__assembly_1__model_1 | I(q)

1kog__assembly_1__model_1 | P(r) · Pending

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. 实体与聚合物信息 Entities & Polymers (5)

实体 1 Entity 1 polymer

聚合物 Polymer

实体 2 Entity 2 polymer

聚合物 Polymer

来源 Source

实体 3 Entity 3 non-polymer

实体 4 Entity 4 non-polymer

实体 5 Entity 5 water

6. 折叠分类 (SCOP + CATH) 32 domains

SCOP 2.08 (16 domains)

CATH v4.4 (16 domains)

7. 引用文献 (1)