3kqu

Three Conformational Snapshots of the Hepatitis C Virus NS3 Helicase Reveal a Ratchet Translocation Mechanism

Method: X-RAY DIFFRACTION

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

Serine protease/NTPase/helicase NS3

Hepatitis C virus

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–DNA	同源多聚体	蛋白 3 DNA 1	5'-D(TTPTPTPTPTPTPTPTPTPTPTPTPTPTPTPTPTP*T)-3' × 1 BERYLLIUM TRIFLUORIDE ION × 3 ADENOSINE-5'-DIPHOSPHATE × 3 MANGANESE (II) ION × 3 water × 4	与全部聚合物一致
2	蛋白–DNA	同源多聚体	蛋白 3 DNA 1	5'-D(TTPTPTPTPTPTPTPTPTPTPTPTPTPTPTPTPTP*T)-3' × 1 BERYLLIUM TRIFLUORIDE ION × 3 ADENOSINE-5'-DIPHOSPHATE × 3 MANGANESE (II) ION × 3 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	POLG_HCVCO
Isoform	—
PDB实体	1
链与序列区间	作者链 A； PDB构建体 1–436； UniProt 1215–1650 作者链 B； PDB构建体 1–436； UniProt 1215–1650 作者链 C； PDB构建体 1–436； UniProt 1215–1650 作者链 D； PDB构建体 1–436； UniProt 1215–1650 作者链 E； PDB构建体 1–436； UniProt 1215–1650 作者链 F； PDB构建体 1–436； UniProt 1215–1650

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	3kqu
沉积日期 deposition_date	2009-11-17
结构标题 title	Three Conformational Snapshots of the Hepatitis C Virus NS3 Helicase Reveal a Ratchet Translocation Mechanism
关键词 keywords	helicase-substrate ground-state complex, HCV, NS3 protein, helicase, DNA-binding, HYDROLASE-DNA complex; HYDROLASE/DNA
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。

3kqu__assembly_1__model_1

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

下载该曲线 .dat

3kqu__assembly_1__model_1 | I(q)

100 个绘图点；横轴和纵轴均采用对数尺度。

3kqu__assembly_1__model_1 | P(r) · Pending

P(r) 将按相同 assembly/model 分别计算和展示。

Rg（Guinier）	34.50 Å
Rg（电子密度）	34.01 Å
总 Rg	34.47 Å
原子数	10293
残基数	1329
排除体积	182190 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	`3kqu__assembly_1__model_1`	tetrameric （4）	成功	4.1.3-1-20251215 (887e7ef)	查看下载
2	1	`3kqu__assembly_2__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 (6)

实体 1 Entity 1 polymer

描述 description	Serine protease/NTPase/helicase NS3
分子量 formula_weight	46742.1 kDa
EC 编号 ec_number	3.4.21.98, 3.6.1.15, 3.6.1.-
来源方法 src_method	man
拷贝数 entity_count	6

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	A,B,C,D,E,F
原子数 atom_count	23155

SPPAVPQTFQVAHLHAPTGSGKSTKVPAAYAAQGYKVLVLNPSVAATLGFGAYMSKAHGIDPNIRTGVRTITTGAPITYSTYGKFLADGGCSGGAYDIIICDECHSTDSTTILGIGTVLDQAETAGARLVVLATATPPGSVTVPHPNIEEVALSSTGEIPFYGKAIPIETIKGGRHLIFCHSKKKCDELAAKLSGLGLNAVAYYRGLDVSVIPTSGDVIVVATDALMTGFTGDFDSVIDCNTCVTQTVDFSLDPTFTIETTTVPQDAVSRSQRRGRTGRGRMGIYRFVTPGERPSGMFDSSVLCECYDAGCAWYELTPAETSVRLRAYLNTPGLPVCQDHLEFWESVFTGLTHIDAHFLSQTKQAGDNFPYLVAYQATVCARAQAPPPSWDQMWKCLIRLKPTLHGPTPLLYRLGAVQNEVTTTHPITKYIMACMSA

来源 Source

来源生物 organism	Hepatitis C virus
通用名 common_name	HCV
NCBI 分类编号 ncbi_taxonomy_id	333284
宿主生物 host_organism	Escherichia coli

实体 2 Entity 2 polymer

描述 description	5'-D(TTPTPTPTPTPTPTPTPTPTPTPTPTPTPTPTPTP*T)-3'
分子量 formula_weight	5734.7 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

聚合物 Polymer

聚合物类型 type	polydeoxyribonucleotide
链编号 strand_id	M,N

TTTTTTTTTTTTTTTTTTT

实体 3 Entity 3 non-polymer

描述 description	BERYLLIUM TRIFLUORIDE ION
分子量 formula_weight	66.0 kDa
来源方法 src_method	syn
拷贝数 entity_count	6

实体 4 Entity 4 non-polymer

描述 description	ADENOSINE-5'-DIPHOSPHATE
分子量 formula_weight	427.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	6

实体 5 Entity 5 non-polymer

描述 description	MANGANESE (II) ION
分子量 formula_weight	54.9 kDa
来源方法 src_method	syn
拷贝数 entity_count	6

实体 6 Entity 6 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	427

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6. 折叠分类 (SCOP + CATH) 36 domains

SCOP 2.08 (18 domains)

结构域编号 domain_id	d3kqua1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kqua2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kqua3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

结构域编号 domain_id	d3kqub1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kqub2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kqub3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

结构域编号 domain_id	d3kquc1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kquc2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kquc3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

结构域编号 domain_id	d3kqud1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kqud2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kqud3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

结构域编号 domain_id	d3kque1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kque2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kque3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

结构域编号 domain_id	d3kquf1
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kquf2
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family family	c.37.1.14 — RNA helicase

结构域编号 domain_id	d3kquf3
类 Class class	l — Artifacts
折叠类型 Fold fold	l.1 — Tags
超家族 Superfamily superfamily	l.1.1 — Tags
家族 Family family	l.1.1.1 — Tags

CATH v4.4 (18 domains)

结构域编号 domain_id	3kquA01
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquA02
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquA03
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	820 — RNA Helicase; Chain A, domain 3
同源超家族 H-superfamily homologous superfamily	10 — RNA Helicase Chain A , domain 3

结构域编号 domain_id	3kquB01
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquB02
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquB03
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	820 — RNA Helicase; Chain A, domain 3
同源超家族 H-superfamily homologous superfamily	10 — RNA Helicase Chain A , domain 3

结构域编号 domain_id	3kquC01
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquC02
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquC03
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	820 — RNA Helicase; Chain A, domain 3
同源超家族 H-superfamily homologous superfamily	10 — RNA Helicase Chain A , domain 3

结构域编号 domain_id	3kquD01
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquD02
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquD03
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	820 — RNA Helicase; Chain A, domain 3
同源超家族 H-superfamily homologous superfamily	10 — RNA Helicase Chain A , domain 3

结构域编号 domain_id	3kquE01
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquE02
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquE03
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	820 — RNA Helicase; Chain A, domain 3
同源超家族 H-superfamily homologous superfamily	10 — RNA Helicase Chain A , domain 3

结构域编号 domain_id	3kquF01
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquF02
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	300 — P-loop containing nucleotide triphosphate hydrolases

结构域编号 domain_id	3kquF03
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	820 — RNA Helicase; Chain A, domain 3
同源超家族 H-superfamily homologous superfamily	10 — RNA Helicase Chain A , domain 3

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晶胞边长 a length_a	116.534 Å
晶胞边长 b length_b	116.467 Å
晶胞边长 c length_c	71.114 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	119.97 °
晶胞分子数 Z z_pdb	6

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

分辨率 resolution	2.400 Å
最低分辨率 resolution_low	50.000 Å
R 因子 r_factor	—
R_work r_work	0.1970
R_free r_free	0.2150

Three Conformational Snapshots of the Hepatitis C Virus NS3 Helicase Reveal a Ratchet Translocation Mechanism

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

Serine protease/NTPase/helicase NS3

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

3kqu__assembly_1__model_1

3kqu__assembly_1__model_1 | I(q)

3kqu__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

5. 实体与聚合物信息 Entities & Polymers (6)

实体 1 Entity 1 polymer

聚合物 Polymer

来源 Source

实体 2 Entity 2 polymer

聚合物 Polymer

实体 3 Entity 3 non-polymer

实体 4 Entity 4 non-polymer

实体 5 Entity 5 non-polymer

实体 6 Entity 6 water

6. 折叠分类 (SCOP + CATH) 36 domains

SCOP 2.08 (18 domains)

CATH v4.4 (18 domains)

7. 引用文献 (1)

Three Conformational Snapshots of the Hepatitis C Virus NS3 Helicase Reveal a Ratchet Translocation Mechanism

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

Serine protease/NTPase/helicase NS3

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

3kqu__assembly_1__model_1

3kqu__assembly_1__model_1 | I(q)

3kqu__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

5. 实体与聚合物信息 Entities & Polymers (6)

实体 1 Entity 1 polymer

聚合物 Polymer

来源 Source

实体 2 Entity 2 polymer

聚合物 Polymer

实体 3 Entity 3 non-polymer

实体 4 Entity 4 non-polymer

实体 5 Entity 5 non-polymer

实体 6 Entity 6 water

6. 折叠分类 (SCOP + CATH) 36 domains

SCOP 2.08 (18 domains)

CATH v4.4 (18 domains)

7. 引用文献 (1)