4khz

Crystal structure of the maltose-binding protein/maltose transporter complex in an pre-translocation conformation bound to maltoheptaose

Method: X-RAY DIFFRACTION
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1. 蛋白身份与相关结构 Protein Identity & Related Structures

Maltose-binding periplasmic protein

Escherichia coli

UniProt P0AEX9

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 异源复合物 蛋白 5 其他聚合物 2 Maltose transport system permease protein MalF × 1 (P02916) Binding-protein-dependent transport systems inner membrane component × 1 (C9QV46) Binding-protein-dependent transport systems inner membrane component × 2 (C9QV42) alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 (1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE × 1 water × 5 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 MALE_ECOLI
Isoform —
PDB实体 1
链与序列区间 作者链 E; PDB构建体 1–370; UniProt 27–396

Maltose transport system permease protein MalF

Escherichia coli

UniProt P02916

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 异源复合物 蛋白 5 其他聚合物 2 Maltose-binding periplasmic protein × 1 (P0AEX9) Binding-protein-dependent transport systems inner membrane component × 1 (C9QV46) Binding-protein-dependent transport systems inner membrane component × 2 (C9QV42) alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 (1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE × 1 water × 5 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 MALF_ECOLI
Isoform —
PDB实体 2
链与序列区间 作者链 F; PDB构建体 1–514; UniProt 1–514

Binding-protein-dependent transport systems inner membrane component

Escherichia coli

UniProt C9QV46

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 异源复合物 蛋白 5 其他聚合物 2 Maltose-binding periplasmic protein × 1 (P0AEX9) Maltose transport system permease protein MalF × 1 (P02916) Binding-protein-dependent transport systems inner membrane component × 2 (C9QV42) alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 (1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE × 1 water × 5 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 C9QV46_ECOD1
Isoform —
PDB实体 3
链与序列区间 作者链 G; PDB构建体 1–296; UniProt 1–296

Binding-protein-dependent transport systems inner membrane component

Escherichia coli

UniProt C9QV42

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 异源复合物 蛋白 5 其他聚合物 2 Maltose-binding periplasmic protein × 1 (P0AEX9) Maltose transport system permease protein MalF × 1 (P02916) Binding-protein-dependent transport systems inner membrane component × 1 (C9QV46) alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 (1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE × 1 water × 5 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 C9QV42_ECOD1
Isoform —
PDB实体 4
链与序列区间 作者链 A; PDB构建体 1–371; UniProt 1–371 作者链 B; PDB构建体 1–371; UniProt 1–371

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_id4khz
沉积日期 deposition_date2013-05-01
结构标题 titleCrystal structure of the maltose-binding protein/maltose transporter complex in an pre-translocation conformation bound to maltoheptaose
关键词 keywordsABC transporter, ATPase Maltodextrin transporter, ATP binding maltodextrin binding, inner membrane, TRANSPORT PROTEIN; TRANSPORT PROTEIN
实验方法 methodX-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。

4khz__assembly_1__model_1

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

下载该曲线 .dat

4khz__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 个绘图点;横轴和纵轴均采用对数尺度。

4khz__assembly_1__model_1 | P(r) · Pending

新版 assembly/model P(r) 尚未计算 此处仅保留位置,不展示旧数据 r (Angstrom) P(r)
P(r) 将按相同 assembly/model 分别计算和展示。
Rg(Guinier)48.27 Å
Rg(电子密度)47.83 Å
总 Rg47.85 Å
原子数14654
残基数1873
排除体积264610 ų
最大 q0.500 Å⁻¹
Assembly Model 结构单元 聚集说明 状态 CRYSOL 操作
1 1 4khz__assembly_1__model_1 pentameric (5) 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 (8)

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6. 折叠分类 (SCOP + CATH) 21 domains

SCOP 2.08 (8 domains)

结构域编号 domain_idd4khza1
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family familyc.37.1.12 — ABC transporter ATPase domain-like
结构域编号 domain_idd4khza2
类 Class classb — All beta proteins
折叠类型 Fold foldb.40 — OB-fold
超家族 Superfamily superfamilyb.40.6 — MOP-like
家族 Family familyb.40.6.3 — ABC-transporter additional domain
结构域编号 domain_idd4khzb1
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family familyc.37.1.12 — ABC transporter ATPase domain-like
结构域编号 domain_idd4khzb2
类 Class classb — All beta proteins
折叠类型 Fold foldb.40 — OB-fold
超家族 Superfamily superfamilyb.40.6 — MOP-like
家族 Family familyb.40.6.3 — ABC-transporter additional domain
结构域编号 domain_idd4khze_
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.94 — Periplasmic binding protein-like II
超家族 Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
家族 Family familyc.94.1.1 — Phosphate binding protein-like
结构域编号 domain_idd4khzf1
类 Class classe — Multi-domain proteins (alpha and beta)
折叠类型 Fold folde.70 — MalF N-terminal region-like
超家族 Superfamily superfamilye.70.1 — MalF N-terminal region-like
家族 Family familye.70.1.1 — MalF N-terminal region-like
结构域编号 domain_idd4khzf2
类 Class classf — Membrane and cell surface proteins and peptides
折叠类型 Fold foldf.58 — MetI-like
超家族 Superfamily superfamilyf.58.1 — MetI-like
家族 Family familyf.58.1.1 — MetI-like
结构域编号 domain_idd4khzg_
类 Class classf — Membrane and cell surface proteins and peptides
折叠类型 Fold foldf.58 — MetI-like
超家族 Superfamily superfamilyf.58.1 — MetI-like
家族 Family familyf.58.1.1 — MetI-like

CATH v4.4 (13 domains)

结构域编号 domain_id4khzA01
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
结构域编号 domain_id4khzA02
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
同源超家族 H-superfamily homologous superfamily100 — RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain
结构域编号 domain_id4khzA03
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
同源超家族 H-superfamily homologous superfamily140 — Nucleic acid-binding proteins
结构域编号 domain_id4khzB01
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
结构域编号 domain_id4khzB02
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
同源超家族 H-superfamily homologous superfamily100 — RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain
结构域编号 domain_id4khzB03
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
同源超家族 H-superfamily homologous superfamily140 — Nucleic acid-binding proteins
结构域编号 domain_id4khzE01
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II
结构域编号 domain_id4khzE02
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
同源超家族 H-superfamily homologous superfamily10 — Periplasmic binding protein-like II
结构域编号 domain_id4khzF01
类 Class class1 — Mainly Alpha
架构 Architecture architecture20 — Up-down Bundle
拓扑 Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
同源超家族 H-superfamily homologous superfamily370 — MalF N-terminal region-like
结构域编号 domain_id4khzF02
类 Class class3 — Alpha Beta
架构 Architecture architecture10 — Roll
拓扑 Topology topology650 — MalF N-terminal region-like
同源超家族 H-superfamily homologous superfamily10 — MalF N-terminal region-like
结构域编号 domain_id4khzF03
类 Class class2 — Mainly Beta
架构 Architecture architecture40 — Beta Barrel
拓扑 Topology topology430 — Periplasmic binding protein-like II
同源超家族 H-superfamily homologous superfamily10 — D-maltodextrin-binding protein, MBP
结构域编号 domain_id4khzF04
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology3720 — MetI-like fold
同源超家族 H-superfamily homologous superfamily10 — MetI-like
结构域编号 domain_id4khzG00
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology3720 — MetI-like fold
同源超家族 H-superfamily homologous superfamily10 — MetI-like
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7. 引用文献 (1)