1dwk

STRUCTURE OF CYANASE WITH THE DI-ANION OXALATE BOUND AT THE ENZYME ACTIVE SITE

Method: X-RAY DIFFRACTION

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

CYANATE HYDRATASE

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	蛋白同源多聚体	同源多聚体	蛋白 10	SULFATE ION × 23 OXALATE ION × 5 water × 10	与蛋白数一致

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	CYNS_ECOLI
Isoform	—
PDB实体	1
链与序列区间	作者链 A； PDB构建体 1–156； UniProt 1–156 作者链 B； PDB构建体 1–156； UniProt 1–156 作者链 C； PDB构建体 1–156； UniProt 1–156 作者链 D； PDB构建体 1–156； UniProt 1–156 作者链 E； PDB构建体 1–156； UniProt 1–156 作者链 F； PDB构建体 1–156； UniProt 1–156 作者链 G； PDB构建体 1–156； UniProt 1–156 作者链 H； PDB构建体 1–156； UniProt 1–156 作者链 I； PDB构建体 1–156； UniProt 1–156 作者链 J； PDB构建体 1–156； UniProt 1–156

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	1dwk
沉积日期 deposition_date	1999-12-07
结构标题 title	STRUCTURE OF CYANASE WITH THE DI-ANION OXALATE BOUND AT THE ENZYME ACTIVE SITE
关键词 keywords	LYASE, CYANATE DEGRADATION, PSI, PROTEIN STRUCTURE INITIATIVE, MIDWEST CENTER FOR STRUCTURAL GENOMICS, MCSG; LYASE
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。

1dwk__assembly_1__model_1

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

下载该曲线 .dat

1dwk__assembly_1__model_1 | I(q)

100 个绘图点；横轴和纵轴均采用对数尺度。

1dwk__assembly_1__model_1 | P(r) · Pending

P(r) 将按相同 assembly/model 分别计算和展示。

Rg（Guinier）	33.23 Å
Rg（电子密度）	32.06 Å
总 Rg	32.82 Å
原子数	12115
残基数	1520
排除体积	218980 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	`1dwk__assembly_1__model_1`	decameric （10）	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 (4)

实体 1 Entity 1 polymer

描述 description	CYANATE HYDRATASE
分子量 formula_weight	17255.4 kDa
EC 编号 ec_number	4.2.1.104
来源方法 src_method	man
拷贝数 entity_count	10

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,I,J
原子数 atom_count	14777

MIQSQINRNIRLDLADAILLSKAKKDLSFAEIADGTGLAEAFVTAALLGQQALPADAARLVGAKLDLDEDSILLLQMIPLRGCIDDRIPTDPTMYRFYEMLQVYGTTLKALVHEKFGDGIISAINFKLDVKKVADPEGGERAVITLDGKYLPTKPF

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 2 Entity 2 non-polymer

描述 description	SULFATE ION
分子量 formula_weight	96.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	23

实体 3 Entity 3 non-polymer

描述 description	OXALATE ION
分子量 formula_weight	88.0 kDa
来源方法 src_method	syn
拷贝数 entity_count	5

实体 4 Entity 4 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	2464

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6. 折叠分类 (SCOP + CATH) 40 domains

SCOP 2.08 (20 domains)

结构域编号 domain_id	d1dwka1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwka2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

结构域编号 domain_id	d1dwkb1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwkb2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

结构域编号 domain_id	d1dwkc1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwkc2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

结构域编号 domain_id	d1dwkd1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwkd2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

结构域编号 domain_id	d1dwke1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwke2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

结构域编号 domain_id	d1dwkf1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwkf2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

结构域编号 domain_id	d1dwkg1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwkg2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

结构域编号 domain_id	d1dwkh1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwkh2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

结构域编号 domain_id	d1dwki1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwki2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

结构域编号 domain_id	d1dwkj1
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.35 — lambda repressor-like DNA-binding domains
超家族 Superfamily superfamily	a.35.1 — lambda repressor-like DNA-binding domains
家族 Family family	a.35.1.4 — Cyanase N-terminal domain

结构域编号 domain_id	d1dwkj2
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.72 — Cyanase C-terminal domain
超家族 Superfamily superfamily	d.72.1 — Cyanase C-terminal domain
家族 Family family	d.72.1.1 — Cyanase C-terminal domain

CATH v4.4 (20 domains)

结构域编号 domain_id	1dwkA01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkA02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

结构域编号 domain_id	1dwkB01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkB02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

结构域编号 domain_id	1dwkC01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkC02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

结构域编号 domain_id	1dwkD01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkD02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

结构域编号 domain_id	1dwkE01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkE02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

结构域编号 domain_id	1dwkF01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkF02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

结构域编号 domain_id	1dwkG01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkG02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

结构域编号 domain_id	1dwkH01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkH02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

结构域编号 domain_id	1dwkI01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkI02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

结构域编号 domain_id	1dwkJ01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	260 — 434 Repressor (Amino-terminal Domain)
同源超家族 H-superfamily homologous superfamily	40 — lambda repressor-like DNA-binding domains

结构域编号 domain_id	1dwkJ02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	30 — 2-Layer Sandwich
拓扑 Topology topology	1160 — Cyanate Lyase; Chain: A, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Cyanate lyase, C-terminal domain

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晶胞边长 a length_a	76.330 Å
晶胞边长 b length_b	80.930 Å
晶胞边长 c length_c	82.130 Å
晶胞夹角 α angle_alpha	70.10 °
晶胞夹角 β angle_beta	71.95 °
晶胞夹角 γ angle_gamma	66.42 °
晶胞分子数 Z z_pdb	10

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

分辨率 resolution	1.650 Å
最低分辨率 resolution_low	20.000 Å
R 因子 r_factor	0.1380
R_work r_work	0.1460
R_free r_free	0.1810

STRUCTURE OF CYANASE WITH THE DI-ANION OXALATE BOUND AT THE ENZYME ACTIVE SITE

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

CYANATE HYDRATASE

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

1dwk__assembly_1__model_1

1dwk__assembly_1__model_1 | I(q)

1dwk__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 (4)

实体 1 Entity 1 polymer

聚合物 Polymer

来源 Source

实体 2 Entity 2 non-polymer

实体 3 Entity 3 non-polymer

实体 4 Entity 4 water

6. 折叠分类 (SCOP + CATH) 40 domains

SCOP 2.08 (20 domains)

CATH v4.4 (20 domains)

7. 引用文献 (5)

STRUCTURE OF CYANASE WITH THE DI-ANION OXALATE BOUND AT THE ENZYME ACTIVE SITE

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

CYANATE HYDRATASE

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

1dwk__assembly_1__model_1

1dwk__assembly_1__model_1 | I(q)

1dwk__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 (4)

实体 1 Entity 1 polymer

聚合物 Polymer

来源 Source

实体 2 Entity 2 non-polymer

实体 3 Entity 3 non-polymer

实体 4 Entity 4 water

6. 折叠分类 (SCOP + CATH) 40 domains

SCOP 2.08 (20 domains)

CATH v4.4 (20 domains)

7. 引用文献 (5)