SAXSdb — 1gai

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

GLUCOAMYLASE-471

物种未注明

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	其他组合	单体	蛋白 1 其他聚合物 3	;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 ;4,6-dideoxy-4-{[(1S,2S,3S,4R,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)cyclohexyl]amino}-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose ; × 1 alpha-D-mannopyranose × 10 water × 1	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	AMYG_ASPSH
Isoform	—
PDB实体	1
链与序列区间	作者链 A； PDB构建体 1–472； UniProt 25–496

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	1gai
沉积日期 deposition_date	1996-03-06
结构标题 title	GLUCOAMYLASE-471 COMPLEXED WITH D-GLUCO-DIHYDROACARBOSE
关键词 keywords	HYDROLASE, GLYCOSIDASE, POLYSACCHARIDE DEGRADATION, GLYCOPROTEIN; 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。

1gai__assembly_1__model_1

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

下载该曲线 .dat

1gai__assembly_1__model_1 | I(q)

100 个绘图点；横轴和纵轴均采用对数尺度。

1gai__assembly_1__model_1 | P(r) · Pending

P(r) 将按相同 assembly/model 分别计算和展示。

Rg（Guinier）	22.66 Å
Rg（电子密度）	21.44 Å
总 Rg	22.44 Å
原子数	4970
残基数	472
排除体积	68271 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	`1gai__assembly_1__model_1`	monomeric （1）	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	GLUCOAMYLASE-471
分子量 formula_weight	50608.9 kDa
EC 编号 ec_number	3.2.1.3
来源方法 src_method	nat
拷贝数 entity_count	1

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	A
原子数 atom_count	6927

ATLDSWLSNEATVARTAILNNIGADGAWVSGADSGIVVASPSTDNPDYFYTWTRDSGLVIKTLVDLFRNGDTDLLSTIEHYISSQAIIQGVSNPSGDLSSGGLGEPKFNVDETAYTGSWGRPQRDGPALRATAMIGFGQWLLDNGYTSAATEIVWPLVRNDLSYVAQYWNQTGYDLWEEVNGSSFFTIAVQHRALVEGSAFATAVGSSCSWCDSQAPQILCYLQSFWTGSYILANFDSSRSGKDTNTLLGSIHTFDPEAGCDDSTFQPCSPRALANHKEVVDSFRSIYTLNDGLSDSEAVAVGRYPEDSYYNGNPWFLCTLAAAEQLYDALYQWDKQGSLEITDVSLDFFKALYSGAATGTYSSSSSTYSSIVSAVKTFADGFVSIVETHAASNGSLSEQFDKSDGDELSARDLTWSYAALLTANNRRNSVVPPSWGETSASSVPGTCAATSASGTYSSVTVTSWPSIVATG

实体 2 Entity 2 branched

描述 description	;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
分子量 formula_weight	910.8 kDa
来源方法 src_method	man
拷贝数 entity_count	1

实体 3 Entity 3 branched

描述 description	;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
分子量 formula_weight	1559.4 kDa
来源方法 src_method	man
拷贝数 entity_count	1

实体 4 Entity 4 branched

描述 description	;4,6-dideoxy-4-{[(1S,2S,3S,4R,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)cyclohexyl]amino}-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose ;
分子量 formula_weight	647.6 kDa
来源方法 src_method	man
拷贝数 entity_count	1

实体 5 Entity 5 non-polymer

描述 description	alpha-D-mannopyranose
分子量 formula_weight	180.2 kDa
来源方法 src_method	man
拷贝数 entity_count	10

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	551

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6. 折叠分类 (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

结构域编号 domain_id	d1gaia_
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.102 — alpha/alpha toroid
超家族 Superfamily superfamily	a.102.1 — Six-hairpin glycosidases
家族 Family family	a.102.1.1 — Glucoamylase

CATH v4.4 (1 domains)

结构域编号 domain_id	1gaiA00
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	50 — Alpha/alpha barrel
拓扑 Topology topology	10 — Glycosyltransferase
同源超家族 H-superfamily homologous superfamily	10 —

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7. 引用文献 (6)

;Crystallographic complexes of glucoamylase with maltooligosaccharide analogs: relationship of stereochemical distortions at the nonreducing end to the catalytic mechanism. ;

Biochemistry (1996)

PMID: 8679589 · DOI: 10.1021/bi960321g PRIMARY

;Refined Structure for the Complex of D-Gluco-Dihydroacarbose with Glucoamylase from Aspergillus Awamori Var. X100 to 2.2 A Resolution: Dual Conformations for Extended Inhibitors Bound to the Active Site of Glucoamylase ;

FEBS Lett. (1995)

Refined Crystal Structures of Glucoamylase from Aspergillus Awamori Var. X100

J.Mol.Biol. (1994)

Refined Structure for the Complex of Acarbose with Glucoamylase from Aspergillus Awamori Var. X100 to 2.4-A Resolution

J.Biol.Chem. (1994)

Refined Structure for the Complex of 1-Deoxynojirimycin with Glucoamylase from Aspergillus Awamori Var. X100 to 2.4-A Resolution

Biochemistry (1993)

Crystal Structure of Glucoamylase from Aspergillus Awamori Var. X100 to 2.2-A Resolution

J.Biol.Chem. (1992)

晶胞边长 a length_a	116.900 Å
晶胞边长 b length_b	104.400 Å
晶胞边长 c length_c	48.400 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	4

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	1.700 Å
最低分辨率 resolution_low	10.000 Å
R 因子 r_factor	0.1470
R_work r_work	0.1470
R_free r_free	0.1670

GLUCOAMYLASE-471 COMPLEXED WITH D-GLUCO-DIHYDROACARBOSE

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

GLUCOAMYLASE-471

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

1gai__assembly_1__model_1

1gai__assembly_1__model_1 | I(q)

1gai__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 (6)

实体 1 Entity 1 polymer

聚合物 Polymer

实体 2 Entity 2 branched

实体 3 Entity 3 branched

实体 4 Entity 4 branched

实体 5 Entity 5 non-polymer

实体 6 Entity 6 water

6. 折叠分类 (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. 引用文献 (6)

GLUCOAMYLASE-471 COMPLEXED WITH D-GLUCO-DIHYDROACARBOSE

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

GLUCOAMYLASE-471

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

1gai__assembly_1__model_1

1gai__assembly_1__model_1 | I(q)

1gai__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 (6)

实体 1 Entity 1 polymer

聚合物 Polymer

实体 2 Entity 2 branched

实体 3 Entity 3 branched

实体 4 Entity 4 branched

实体 5 Entity 5 non-polymer

实体 6 Entity 6 water

6. 折叠分类 (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. 引用文献 (6)