1jz3

E. COLI (lacZ) BETA-GALACTOSIDASE-TRAPPED 2-DEOXY-GALACTOSYL ENZYME INTERMEDIATE

Method: X-RAY DIFFRACTION

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

Beta-Galactosidase

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 4	2-deoxy-alpha-D-galactopyranose × 4 MAGNESIUM ION × 17 SODIUM ION × 16 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 4 DIMETHYL SULFOXIDE × 110 water × 4	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	BGAL_ECOLI
Isoform	—
PDB实体	1
链与序列区间	作者链 A； PDB构建体 1–1023； UniProt 1–1023 作者链 B； PDB构建体 1–1023； UniProt 1–1023 作者链 C； PDB构建体 1–1023； UniProt 1–1023 作者链 D； PDB构建体 1–1023； UniProt 1–1023

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	1jz3
沉积日期 deposition_date	2001-09-13
结构标题 title	E. COLI (lacZ) BETA-GALACTOSIDASE-TRAPPED 2-DEOXY-GALACTOSYL ENZYME INTERMEDIATE
关键词 keywords	TIM BARREL (ALPHA/BETA BARREL), JELLY-ROLL BARREL, IMMUNOGLOBULIN, BETA SUPERSANDWICH, HYDROLASE; HYDROLASE
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。

1jz3__assembly_1__model_1

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

下载该曲线 .dat

1jz3__assembly_1__model_1 | I(q)

100 个绘图点；横轴和纵轴均采用对数尺度。

1jz3__assembly_1__model_1 | P(r) · Pending

P(r) 将按相同 assembly/model 分别计算和展示。

Rg（Guinier）	52.04 Å
Rg（电子密度）	51.68 Å
总 Rg	51.87 Å
原子数	33069
残基数	4044
排除体积	583110 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	`1jz3__assembly_1__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 (7)

实体 1 Entity 1 polymer

描述 description	Beta-Galactosidase
分子量 formula_weight	116506.3 kDa
EC 编号 ec_number	3.2.1.23
来源方法 src_method	man
拷贝数 entity_count	4

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	A,B,C,D
原子数 atom_count	37369

GSHMLEDPVVLQRRDWENPGVTQLNRLAAHPPFASWRNSEEARTDRPSQQLRSLNGEWRFAWFPAPEAVPESWLECDLPEADTVVVPSNWQMHGYDAPIYTNVTYPITVNPPFVPTENPTGCYSLTFNVDESWLQEGQTRIIFDGVNSAFHLWCNGRWVGYGQDSRLPSEFDLSAFLRAGENRLAVMVLRWSDGSYLEDQDMWRMSGIFRDVSLLHKPTTQISDFHVATRFNDDFSRAVLEAEVQMCGELRDYLRVTVSLWQGETQVASGTAPFGGEIIDERGGYADRVTLRLNVENPKLWSAEIPNLYRAVVELHTADGTLIEAEACDVGFREVRIENGLLLLNGKPLLIRGVNRHEHHPLHGQVMDEQTMVQDILLMKQNNFNAVRCSHYPNHPLWYTLCDRYGLYVVDEANIETHGMVPMNRLTDDPRWLPAMSERVTRMVQRDRNHPSVIIWSLGNESGHGANHDALYRWIKSVDPSRPVQYEGGGADTTATDIICPMYARVDEDQPFPAVPKWSIKKWLSLPGETRPLILCEYAHAMGNSLGGFAKYWQAFRQYPRLQGGFVWDWVDQSLIKYDENGNPWSAYGGDFGDTPNDRQFCMNGLVFADRTPHPALTEAKHQQQFFQFRLSGQTIEVTSEYLFRHSDNELLHWMVALDGKPLASGEVPLDVAPQGKQLIELPELPQPESAGQLWLTVRVVQPNATAWSEAGHISAWQQWRLAENLSVTLPAASHAIPHLTTSEMDFCIELGNKRWQFNRQSGFLSQMWIGDKKQLLTPLRDQFTRAPLDNDIGVSEATRIDPNAWVERWKAAGHYQAEAALLQCTADTLADAVLITTAHAWQHQGKTLFISRKTYRIDGSGQMAITVDVEVASDTPHPARIGLNCQLAQVAERVNWLGLGPQENYPDRLTAACFDRWDLPLSDMYTPYVFPSENGLRCGTRELNYGPHQWRGDFQFNISRYSQQQLMETSHRHLLHAEEGTWLNIDGFHMGIGGDDSWSPSVSAEFQLSAGRYHYQLVWCQK

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	2-deoxy-alpha-D-galactopyranose
分子量 formula_weight	164.2 kDa
来源方法 src_method	man
拷贝数 entity_count	4

实体 3 Entity 3 non-polymer

描述 description	MAGNESIUM ION
分子量 formula_weight	24.3 kDa
来源方法 src_method	syn
拷贝数 entity_count	17

实体 4 Entity 4 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	16

实体 5 Entity 5 non-polymer

描述 description	2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
分子量 formula_weight	209.2 kDa
来源方法 src_method	syn
拷贝数 entity_count	4

实体 6 Entity 6 non-polymer

描述 description	DIMETHYL SULFOXIDE
分子量 formula_weight	78.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	110

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	4294

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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	d1jz3a1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.4 — beta-Galactosidase/glucuronidase domain
家族 Family family	b.1.4.1 — beta-Galactosidase/glucuronidase domain

结构域编号 domain_id	d1jz3a2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.4 — beta-Galactosidase/glucuronidase domain
家族 Family family	b.1.4.1 — beta-Galactosidase/glucuronidase domain

结构域编号 domain_id	d1jz3a3
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.18 — Galactose-binding domain-like
超家族 Superfamily superfamily	b.18.1 — Galactose-binding domain-like
家族 Family family	b.18.1.5 — beta-Galactosidase/glucuronidase, N-terminal domain

结构域编号 domain_id	d1jz3a4
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.30 — Supersandwich
超家族 Superfamily superfamily	b.30.5 — Galactose mutarotase-like
家族 Family family	b.30.5.1 — beta-Galactosidase, domain 5

结构域编号 domain_id	d1jz3a5
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamily	c.1.8 — (Trans)glycosidases
家族 Family family	c.1.8.3 — beta-glycanases

结构域编号 domain_id	d1jz3b1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.4 — beta-Galactosidase/glucuronidase domain
家族 Family family	b.1.4.1 — beta-Galactosidase/glucuronidase domain

结构域编号 domain_id	d1jz3b2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.4 — beta-Galactosidase/glucuronidase domain
家族 Family family	b.1.4.1 — beta-Galactosidase/glucuronidase domain

结构域编号 domain_id	d1jz3b3
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.18 — Galactose-binding domain-like
超家族 Superfamily superfamily	b.18.1 — Galactose-binding domain-like
家族 Family family	b.18.1.5 — beta-Galactosidase/glucuronidase, N-terminal domain

结构域编号 domain_id	d1jz3b4
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.30 — Supersandwich
超家族 Superfamily superfamily	b.30.5 — Galactose mutarotase-like
家族 Family family	b.30.5.1 — beta-Galactosidase, domain 5

结构域编号 domain_id	d1jz3b5
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamily	c.1.8 — (Trans)glycosidases
家族 Family family	c.1.8.3 — beta-glycanases

结构域编号 domain_id	d1jz3c1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.4 — beta-Galactosidase/glucuronidase domain
家族 Family family	b.1.4.1 — beta-Galactosidase/glucuronidase domain

结构域编号 domain_id	d1jz3c2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.4 — beta-Galactosidase/glucuronidase domain
家族 Family family	b.1.4.1 — beta-Galactosidase/glucuronidase domain

结构域编号 domain_id	d1jz3c3
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.18 — Galactose-binding domain-like
超家族 Superfamily superfamily	b.18.1 — Galactose-binding domain-like
家族 Family family	b.18.1.5 — beta-Galactosidase/glucuronidase, N-terminal domain

结构域编号 domain_id	d1jz3c4
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.30 — Supersandwich
超家族 Superfamily superfamily	b.30.5 — Galactose mutarotase-like
家族 Family family	b.30.5.1 — beta-Galactosidase, domain 5

结构域编号 domain_id	d1jz3c5
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamily	c.1.8 — (Trans)glycosidases
家族 Family family	c.1.8.3 — beta-glycanases

结构域编号 domain_id	d1jz3d1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.4 — beta-Galactosidase/glucuronidase domain
家族 Family family	b.1.4.1 — beta-Galactosidase/glucuronidase domain

结构域编号 domain_id	d1jz3d2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.4 — beta-Galactosidase/glucuronidase domain
家族 Family family	b.1.4.1 — beta-Galactosidase/glucuronidase domain

结构域编号 domain_id	d1jz3d3
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.18 — Galactose-binding domain-like
超家族 Superfamily superfamily	b.18.1 — Galactose-binding domain-like
家族 Family family	b.18.1.5 — beta-Galactosidase/glucuronidase, N-terminal domain

结构域编号 domain_id	d1jz3d4
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.30 — Supersandwich
超家族 Superfamily superfamily	b.30.5 — Galactose mutarotase-like
家族 Family family	b.30.5.1 — beta-Galactosidase, domain 5

结构域编号 domain_id	d1jz3d5
类 Class class	c — Alpha and beta proteins (a/b)
折叠类型 Fold fold	c.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamily	c.1.8 — (Trans)glycosidases
家族 Family family	c.1.8.3 — beta-glycanases

CATH v4.4 (20 domains)

结构域编号 domain_id	1jz3A01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	120 — Jelly Rolls
同源超家族 H-superfamily homologous superfamily	260 — Galactose-binding domain-like

结构域编号 domain_id	1jz3A02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1jz3A03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily	80 — Glycosidases

结构域编号 domain_id	1jz3A04
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1jz3A05
类 Class class	2 — Mainly Beta
架构 Architecture architecture	70 — Distorted Sandwich
拓扑 Topology topology	98 — Beta-galactosidase; Chain A, domain 5
同源超家族 H-superfamily homologous superfamily	10 —

结构域编号 domain_id	1jz3B01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	120 — Jelly Rolls
同源超家族 H-superfamily homologous superfamily	260 — Galactose-binding domain-like

结构域编号 domain_id	1jz3B02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1jz3B03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily	80 — Glycosidases

结构域编号 domain_id	1jz3B04
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1jz3B05
类 Class class	2 — Mainly Beta
架构 Architecture architecture	70 — Distorted Sandwich
拓扑 Topology topology	98 — Beta-galactosidase; Chain A, domain 5
同源超家族 H-superfamily homologous superfamily	10 —

结构域编号 domain_id	1jz3C01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	120 — Jelly Rolls
同源超家族 H-superfamily homologous superfamily	260 — Galactose-binding domain-like

结构域编号 domain_id	1jz3C02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1jz3C03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily	80 — Glycosidases

结构域编号 domain_id	1jz3C04
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1jz3C05
类 Class class	2 — Mainly Beta
架构 Architecture architecture	70 — Distorted Sandwich
拓扑 Topology topology	98 — Beta-galactosidase; Chain A, domain 5
同源超家族 H-superfamily homologous superfamily	10 —

结构域编号 domain_id	1jz3D01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	120 — Jelly Rolls
同源超家族 H-superfamily homologous superfamily	260 — Galactose-binding domain-like

结构域编号 domain_id	1jz3D02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1jz3D03
类 Class class	3 — Alpha Beta
架构 Architecture architecture	20 — Alpha-Beta Barrel
拓扑 Topology topology	20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily	80 — Glycosidases

结构域编号 domain_id	1jz3D04
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1jz3D05
类 Class class	2 — Mainly Beta
架构 Architecture architecture	70 — Distorted Sandwich
拓扑 Topology topology	98 — Beta-galactosidase; Chain A, domain 5
同源超家族 H-superfamily homologous superfamily	10 —

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晶胞边长 a length_a	149.560 Å
晶胞边长 b length_b	168.190 Å
晶胞边长 c length_c	200.690 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	16

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	1.750 Å
最低分辨率 resolution_low	16.000 Å
R 因子 r_factor	—
R_work r_work	0.1580
R_free r_free	0.2220

E. COLI (lacZ) BETA-GALACTOSIDASE-TRAPPED 2-DEOXY-GALACTOSYL ENZYME INTERMEDIATE

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

Beta-Galactosidase

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

1jz3__assembly_1__model_1

1jz3__assembly_1__model_1 | I(q)

1jz3__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 (7)

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 non-polymer

实体 5 Entity 5 non-polymer

实体 6 Entity 6 non-polymer

实体 7 Entity 7 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)

E. COLI (lacZ) BETA-GALACTOSIDASE-TRAPPED 2-DEOXY-GALACTOSYL ENZYME INTERMEDIATE

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

Beta-Galactosidase

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

1jz3__assembly_1__model_1

1jz3__assembly_1__model_1 | I(q)

1jz3__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 (7)

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 non-polymer

实体 5 Entity 5 non-polymer

实体 6 Entity 6 non-polymer

实体 7 Entity 7 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)