2wqy

Remodelling of carboxin binding to the Q-site of avian respiratory complex II

Method: X-RAY DIFFRACTION

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

SUCCINATE DEHYDROGENASE FLAVOPROTEIN SUBUNIT

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	蛋白异源复合物	异源复合物	蛋白 4	SUCCINATE DEHYDROGENASE IP SUBUNIT × 1 （Q9YHT2） SUCCINATE DEHYDROGENASE CYTOCHROME B, LARGE SUBUNIT × 1 SUCCINATE DEHYDROGENASE CYTOCHROME B, SMALL SUBUNIT × 1 （Q5ZIS0） UNKNOWN LIGAND × 55 POTASSIUM ION × 2 AZIDE ION × 1 FLAVIN-ADENINE DINUCLEOTIDE × 1 OXALOACETATE ION × 1 FE2/S2 (INORGANIC) CLUSTER × 1 IRON/SULFUR CLUSTER × 1 FE3-S4 CLUSTER × 1 GLYCEROL × 2 hexyl beta-D-galactopyranoside × 1 PROTOPORPHYRIN IX CONTAINING FE × 1 2-METHYL-N-PHENYL-5,6-DIHYDRO-1,4-OXATHIINE-3-CARBOXAMIDE × 1 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 1 water × 4	与蛋白数一致
2	蛋白异源复合物	异源复合物	蛋白 4	SUCCINATE DEHYDROGENASE IP SUBUNIT × 1 （Q9YHT2） SUCCINATE DEHYDROGENASE CYTOCHROME B, LARGE SUBUNIT × 1 SUCCINATE DEHYDROGENASE CYTOCHROME B, SMALL SUBUNIT × 1 （Q5ZIS0） UNKNOWN LIGAND × 40 POTASSIUM ION × 2 FLAVIN-ADENINE DINUCLEOTIDE × 1 OXALOACETATE ION × 1 FE2/S2 (INORGANIC) CLUSTER × 1 IRON/SULFUR CLUSTER × 1 FE3-S4 CLUSTER × 1 GLYCEROL × 2 hexyl beta-D-galactopyranoside × 1 PROTOPORPHYRIN IX CONTAINING FE × 1 2-METHYL-N-PHENYL-5,6-DIHYDRO-1,4-OXATHIINE-3-CARBOXAMIDE × 1 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 1 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	DHSA_CHICK
Isoform	—
PDB实体	1
链与序列区间	作者链 A； PDB构建体 1–621； UniProt 45–665 作者链 N； PDB构建体 1–621； UniProt 45–665

SUCCINATE DEHYDROGENASE IP SUBUNIT

物种未注明

UniProt Q9YHT2

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	蛋白异源复合物	异源复合物	蛋白 4	SUCCINATE DEHYDROGENASE FLAVOPROTEIN SUBUNIT × 1 （Q9YHT1） SUCCINATE DEHYDROGENASE CYTOCHROME B, LARGE SUBUNIT × 1 SUCCINATE DEHYDROGENASE CYTOCHROME B, SMALL SUBUNIT × 1 （Q5ZIS0） UNKNOWN LIGAND × 55 POTASSIUM ION × 2 AZIDE ION × 1 FLAVIN-ADENINE DINUCLEOTIDE × 1 OXALOACETATE ION × 1 FE2/S2 (INORGANIC) CLUSTER × 1 IRON/SULFUR CLUSTER × 1 FE3-S4 CLUSTER × 1 GLYCEROL × 2 hexyl beta-D-galactopyranoside × 1 PROTOPORPHYRIN IX CONTAINING FE × 1 2-METHYL-N-PHENYL-5,6-DIHYDRO-1,4-OXATHIINE-3-CARBOXAMIDE × 1 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 1 water × 4	与蛋白数一致
2	蛋白异源复合物	异源复合物	蛋白 4	SUCCINATE DEHYDROGENASE FLAVOPROTEIN SUBUNIT × 1 （Q9YHT1） SUCCINATE DEHYDROGENASE CYTOCHROME B, LARGE SUBUNIT × 1 SUCCINATE DEHYDROGENASE CYTOCHROME B, SMALL SUBUNIT × 1 （Q5ZIS0） UNKNOWN LIGAND × 40 POTASSIUM ION × 2 FLAVIN-ADENINE DINUCLEOTIDE × 1 OXALOACETATE ION × 1 FE2/S2 (INORGANIC) CLUSTER × 1 IRON/SULFUR CLUSTER × 1 FE3-S4 CLUSTER × 1 GLYCEROL × 2 hexyl beta-D-galactopyranoside × 1 PROTOPORPHYRIN IX CONTAINING FE × 1 2-METHYL-N-PHENYL-5,6-DIHYDRO-1,4-OXATHIINE-3-CARBOXAMIDE × 1 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 1 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	DHSB_CHICK
Isoform	—
PDB实体	2
链与序列区间	作者链 B； PDB构建体 1–252； UniProt 39–290 作者链 O； PDB构建体 1–252； UniProt 39–290

SUCCINATE DEHYDROGENASE CYTOCHROME B, SMALL SUBUNIT

物种未注明

UniProt Q5ZIS0

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	蛋白异源复合物	异源复合物	蛋白 4	SUCCINATE DEHYDROGENASE FLAVOPROTEIN SUBUNIT × 1 （Q9YHT1） SUCCINATE DEHYDROGENASE IP SUBUNIT × 1 （Q9YHT2） SUCCINATE DEHYDROGENASE CYTOCHROME B, LARGE SUBUNIT × 1 UNKNOWN LIGAND × 55 POTASSIUM ION × 2 AZIDE ION × 1 FLAVIN-ADENINE DINUCLEOTIDE × 1 OXALOACETATE ION × 1 FE2/S2 (INORGANIC) CLUSTER × 1 IRON/SULFUR CLUSTER × 1 FE3-S4 CLUSTER × 1 GLYCEROL × 2 hexyl beta-D-galactopyranoside × 1 PROTOPORPHYRIN IX CONTAINING FE × 1 2-METHYL-N-PHENYL-5,6-DIHYDRO-1,4-OXATHIINE-3-CARBOXAMIDE × 1 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 1 water × 4	与蛋白数一致
2	蛋白异源复合物	异源复合物	蛋白 4	SUCCINATE DEHYDROGENASE FLAVOPROTEIN SUBUNIT × 1 （Q9YHT1） SUCCINATE DEHYDROGENASE IP SUBUNIT × 1 （Q9YHT2） SUCCINATE DEHYDROGENASE CYTOCHROME B, LARGE SUBUNIT × 1 UNKNOWN LIGAND × 40 POTASSIUM ION × 2 FLAVIN-ADENINE DINUCLEOTIDE × 1 OXALOACETATE ION × 1 FE2/S2 (INORGANIC) CLUSTER × 1 IRON/SULFUR CLUSTER × 1 FE3-S4 CLUSTER × 1 GLYCEROL × 2 hexyl beta-D-galactopyranoside × 1 PROTOPORPHYRIN IX CONTAINING FE × 1 2-METHYL-N-PHENYL-5,6-DIHYDRO-1,4-OXATHIINE-3-CARBOXAMIDE × 1 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 1 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	DHSD_CHICK
Isoform	—
PDB实体	4
链与序列区间	作者链 D； PDB构建体 1–103； UniProt 55–157 作者链 Q； PDB构建体 1–103； UniProt 55–157

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	2wqy
沉积日期 deposition_date	2009-08-27
结构标题 title	Remodelling of carboxin binding to the Q-site of avian respiratory complex II
关键词 keywords	;OXALOACETATE NITROPROPIONATE UBIQUINONE, RESPIRATORY CHAIN, COMPLEX II, CYTOCROME B, REDOX ENZYME, HEME PROTEIN, FLAVOPROTEIN, OXIDOREDUCTASE, METAL-BINDING, MITOCHONDRION INNER MEMBRANE, IRON SULFUR PROTEIN, TRICARBOXYLIC ACID CYCLE ;; OXIDOREDUCTASE
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。

2wqy__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

下载该曲线 .dat

2wqy__assembly_2__model_1 | I(q)

100 个绘图点；横轴和纵轴均采用对数尺度。

2wqy__assembly_2__model_1 | P(r) · Pending

P(r) 将按相同 assembly/model 分别计算和展示。

Rg（Guinier）	32.60 Å
Rg（电子密度）	33.32 Å
总 Rg	33.39 Å
原子数	8731
残基数	1092
排除体积	155780 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	`2wqy__assembly_1__model_1`	tetrameric （4）	成功	4.1.3-1-20251215 (887e7ef)	查看下载
2	1	`2wqy__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 (18)

实体 1 Entity 1 polymer

描述 description	SUCCINATE DEHYDROGENASE FLAVOPROTEIN SUBUNIT
分子量 formula_weight	68256.9 kDa
EC 编号 ec_number	1.3.5.1
来源方法 src_method	nat
拷贝数 entity_count	2

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	A,N
原子数 atom_count	19490

STKVSDSISTQYPVVDHEFDAVVVGAGGAGLRAAFGLSEAGFNTACVTKLFPTRSHTVAAQGGINAALGNMEDDNWRWHFYDTVKGSDWLGDQDAIHYMTEQAPAAVIELENYGMPFSRTEEGKIYQRAFGGQSLQFGKGGQAHRCCCVADRTGHSLLHTLYGRSLRYDTSYFVEYFALDLLMENGECRGVIALCIEDGTIHRFRAKNTVIATGGYGRTYFSCTSAHTSTGDGTAMVTRAGLPCQDLEFVQFHPTGIYGAGCLITEGCRGEGGILINSQGERFMERYAPVAKDLASRDVVSRSMTIEIREGRGCGPEKDHVYLQLHHLPPQQLATRLPGISETAMIFAGVDVTKEPIPVLPTVHYNMGGIPTNYKGQVITHVNGEDKVVPGLYACGEAASASVHGANRLGANSLLDLVVFGRACALTIAETCKPGEPVPSIKPNAGEESVANLDKLRFADGTIRTSEARLNMQKTMQSHAAVFRTGSILQEGCEKLSQIYRDLAHLKTFDRGIVWNTDLVETLELQNLMLCALQTIYGAEARKESRGAHAREDYKLRIDEFDYSKPLQGQQKRPFEEHWRKHTLSYVDVKSGKVTLKYRPVIDRTLNEEDCSSVPPAIRSY

实体 2 Entity 2 polymer

描述 description	SUCCINATE DEHYDROGENASE IP SUBUNIT
分子量 formula_weight	28685.2 kDa
EC 编号 ec_number	1.3.5.1
来源方法 src_method	nat
拷贝数 entity_count	2

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	B,O

AQTAAAATSRIKKFSIYRWDPDKPGDKPRMQTYEVDLNKCGPMVLDALIKIKNELDSTLTFRRSCREGICGSCAMNIAGGNTLACTKKIDPDLSKTTKIYPLPHMYVVKDLVPDLSNFYAQYKSIEPYLKKKDESKQGKEQYLQSIEDRQKLDGLYECILCACCSTSCPSYWWNGDKYLGPAVLMQAYRWMIDSRDDYTEERLAQLQDPFSLYRCHTIMNCTRTCPKGLNPGKAIAEIKKMMATYKEKAAAA

实体 3 Entity 3 polymer

描述 description	SUCCINATE DEHYDROGENASE CYTOCHROME B, LARGE SUBUNIT
分子量 formula_weight	15419.1 kDa
EC 编号 ec_number	1.3.5.1
来源方法 src_method	nat
拷贝数 entity_count	2

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	C,P

MATTAKEEMARFWEKNTKSSRPLSPHISIYKWSLPMAMSITHRGTGVALSLGVSLFSVAALLLPEQFPHYVAVVKSLSLSPALIYSAKFALVFPLSYHTWNGIRHLVWDMGKGFKLSQVEQSGVVVLILTLLSSAGIAAIS

实体 4 Entity 4 polymer

描述 description	SUCCINATE DEHYDROGENASE CYTOCHROME B, SMALL SUBUNIT
分子量 formula_weight	10971.6 kDa
EC 编号 ec_number	1.3.5.1
来源方法 src_method	nat
拷贝数 entity_count	2

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	D,Q

GSSKAASLHWTSERAVSALLLGLLPAAYLYPGPAVDYSLAAALTLHGHWGLGQVITDYVHGDTPIKVANTGLYVLSAITFTGLCYFNYYDVGICKAVAMLWSI

实体 5 Entity 5 non-polymer

描述 description	UNKNOWN LIGAND
来源方法 src_method	syn
拷贝数 entity_count	95

实体 6 Entity 6 non-polymer

描述 description	POTASSIUM ION
分子量 formula_weight	39.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	4

实体 7 Entity 7 non-polymer

描述 description	AZIDE ION
分子量 formula_weight	42.0 kDa
来源方法 src_method	syn
拷贝数 entity_count	1

实体 8 Entity 8 non-polymer

描述 description	FLAVIN-ADENINE DINUCLEOTIDE
分子量 formula_weight	785.5 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

实体 9 Entity 9 non-polymer

描述 description	OXALOACETATE ION
分子量 formula_weight	131.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

实体 10 Entity 10 non-polymer

描述 description	FE2/S2 (INORGANIC) CLUSTER
分子量 formula_weight	175.8 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

实体 11 Entity 11 non-polymer

描述 description	IRON/SULFUR CLUSTER
分子量 formula_weight	351.6 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

实体 12 Entity 12 non-polymer

描述 description	FE3-S4 CLUSTER
分子量 formula_weight	295.8 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

实体 13 Entity 13 non-polymer

描述 description	GLYCEROL
分子量 formula_weight	92.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	4

实体 14 Entity 14 non-polymer

描述 description	hexyl beta-D-galactopyranoside
分子量 formula_weight	264.3 kDa
来源方法 src_method	man
拷贝数 entity_count	2

实体 15 Entity 15 non-polymer

描述 description	PROTOPORPHYRIN IX CONTAINING FE
分子量 formula_weight	616.5 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

实体 16 Entity 16 non-polymer

描述 description	2-METHYL-N-PHENYL-5,6-DIHYDRO-1,4-OXATHIINE-3-CARBOXAMIDE
分子量 formula_weight	235.3 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

实体 17 Entity 17 non-polymer

描述 description	1,2-dioleoyl-sn-glycero-3-phosphoethanolamine
分子量 formula_weight	744.0 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

实体 18 Entity 18 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	1996

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6. 折叠分类 (SCOP + CATH) 26 domains

SCOP 2.08 (8 domains)

结构域编号 domain_id	d2wqyb1
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.15 — beta-Grasp (ubiquitin-like)
超家族 Superfamily superfamily	d.15.4 — 2Fe-2S ferredoxin-like
家族 Family family	d.15.4.2 — 2Fe-2S ferredoxin domains from multidomain proteins

结构域编号 domain_id	d2wqyb2
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.1 — Globin-like
超家族 Superfamily superfamily	a.1.2 — alpha-helical ferredoxin
家族 Family family	a.1.2.1 — Fumarate reductase/Succinate dehydogenase iron-sulfur protein, C-terminal domain

结构域编号 domain_id	d2wqyc_
类 Class class	f — Membrane and cell surface proteins and peptides
折叠类型 Fold fold	f.21 — Heme-binding four-helical bundle
超家族 Superfamily superfamily	f.21.2 — Fumarate reductase respiratory complex transmembrane subunits
家族 Family family	f.21.2.2 — Succinate dehydrogenase/Fumarate reductase transmembrane subunits (SdhC/FrdC and SdhD/FrdD)

结构域编号 domain_id	d2wqyd_
类 Class class	f — Membrane and cell surface proteins and peptides
折叠类型 Fold fold	f.21 — Heme-binding four-helical bundle
超家族 Superfamily superfamily	f.21.2 — Fumarate reductase respiratory complex transmembrane subunits
家族 Family family	f.21.2.2 — Succinate dehydrogenase/Fumarate reductase transmembrane subunits (SdhC/FrdC and SdhD/FrdD)

结构域编号 domain_id	d2wqyo1
类 Class class	d — Alpha and beta proteins (a+b)
折叠类型 Fold fold	d.15 — beta-Grasp (ubiquitin-like)
超家族 Superfamily superfamily	d.15.4 — 2Fe-2S ferredoxin-like
家族 Family family	d.15.4.2 — 2Fe-2S ferredoxin domains from multidomain proteins

结构域编号 domain_id	d2wqyo2
类 Class class	a — All alpha proteins
折叠类型 Fold fold	a.1 — Globin-like
超家族 Superfamily superfamily	a.1.2 — alpha-helical ferredoxin
家族 Family family	a.1.2.1 — Fumarate reductase/Succinate dehydogenase iron-sulfur protein, C-terminal domain

结构域编号 domain_id	d2wqyp_
类 Class class	f — Membrane and cell surface proteins and peptides
折叠类型 Fold fold	f.21 — Heme-binding four-helical bundle
超家族 Superfamily superfamily	f.21.2 — Fumarate reductase respiratory complex transmembrane subunits
家族 Family family	f.21.2.2 — Succinate dehydrogenase/Fumarate reductase transmembrane subunits (SdhC/FrdC and SdhD/FrdD)

结构域编号 domain_id	d2wqyq_
类 Class class	f — Membrane and cell surface proteins and peptides
折叠类型 Fold fold	f.21 — Heme-binding four-helical bundle
超家族 Superfamily superfamily	f.21.2 — Fumarate reductase respiratory complex transmembrane subunits
家族 Family family	f.21.2.2 — Succinate dehydrogenase/Fumarate reductase transmembrane subunits (SdhC/FrdC and SdhD/FrdD)

CATH v4.4 (18 domains)

结构域编号 domain_id	2wqyA01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	50 — 3-Layer(bba) Sandwich
拓扑 Topology topology	50 — FAD/NAD(P)-binding domain
同源超家族 H-superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

结构域编号 domain_id	2wqyA02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	700 — Flavocytochrome C3; Chain A, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain

结构域编号 domain_id	2wqyA03
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
同源超家族 H-superfamily homologous superfamily	100 — Fumarate reductase/succinate dehydrogenase flavoprotein-like, C-terminal domain

结构域编号 domain_id	2wqyA04
类 Class class	4 — Few Secondary Structures
架构 Architecture architecture	10 — Irregular
拓扑 Topology topology	80 — Rhinovirus 14, subunit 4
同源超家族 H-superfamily homologous superfamily	40 — succinate dehydrogenase protein domain

结构域编号 domain_id	2wqyB01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	10 — Roll
拓扑 Topology topology	20 — Ubiquitin-like (UB roll)
同源超家族 H-superfamily homologous superfamily	30 — Beta-grasp domain

结构域编号 domain_id	2wqyB02
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	1060 — Fumarate Reductase Iron-sulfur Protein; Chain B, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Alpha-helical ferredoxin

结构域编号 domain_id	2wqyC01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
同源超家族 H-superfamily homologous superfamily	540 — Single helix bin

结构域编号 domain_id	2wqyC02
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	1300 — 3 helical TM bundles of succinate and fumarate reductases
同源超家族 H-superfamily homologous superfamily	10 — Fumarate reductase/succinate dehydrogenase, transmembrane subunit

结构域编号 domain_id	2wqyD00
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	1300 — 3 helical TM bundles of succinate and fumarate reductases
同源超家族 H-superfamily homologous superfamily	10 — Fumarate reductase/succinate dehydrogenase, transmembrane subunit

结构域编号 domain_id	2wqyN01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	50 — 3-Layer(bba) Sandwich
拓扑 Topology topology	50 — FAD/NAD(P)-binding domain
同源超家族 H-superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

结构域编号 domain_id	2wqyN02
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	700 — Flavocytochrome C3; Chain A, domain 1
同源超家族 H-superfamily homologous superfamily	10 — Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain

结构域编号 domain_id	2wqyN03
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
同源超家族 H-superfamily homologous superfamily	100 — Fumarate reductase/succinate dehydrogenase flavoprotein-like, C-terminal domain

结构域编号 domain_id	2wqyN04
类 Class class	4 — Few Secondary Structures
架构 Architecture architecture	10 — Irregular
拓扑 Topology topology	80 — Rhinovirus 14, subunit 4
同源超家族 H-superfamily homologous superfamily	40 — succinate dehydrogenase protein domain

结构域编号 domain_id	2wqyO01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	10 — Roll
拓扑 Topology topology	20 — Ubiquitin-like (UB roll)
同源超家族 H-superfamily homologous superfamily	30 — Beta-grasp domain

结构域编号 domain_id	2wqyO02
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	10 — Orthogonal Bundle
拓扑 Topology topology	1060 — Fumarate Reductase Iron-sulfur Protein; Chain B, domain 2
同源超家族 H-superfamily homologous superfamily	10 — Alpha-helical ferredoxin

结构域编号 domain_id	2wqyP01
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
同源超家族 H-superfamily homologous superfamily	540 — Single helix bin

结构域编号 domain_id	2wqyP02
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	1300 — 3 helical TM bundles of succinate and fumarate reductases
同源超家族 H-superfamily homologous superfamily	10 — Fumarate reductase/succinate dehydrogenase, transmembrane subunit

结构域编号 domain_id	2wqyQ00
类 Class class	1 — Mainly Alpha
架构 Architecture architecture	20 — Up-down Bundle
拓扑 Topology topology	1300 — 3 helical TM bundles of succinate and fumarate reductases
同源超家族 H-superfamily homologous superfamily	10 — Fumarate reductase/succinate dehydrogenase, transmembrane subunit

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晶胞边长 a length_a	118.700 Å
晶胞边长 b length_b	200.753 Å
晶胞边长 c length_c	67.631 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	90.06 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	4

空间群 space_group	P 1 21 1
空间群编号 int_tables_number	4
晶系 crystal_system	—

分辨率 resolution	2.100 Å
最低分辨率 resolution_low	64.090 Å
R 因子 r_factor	0.1858
R_work r_work	0.1840
R_free r_free	0.2228

Remodelling of carboxin binding to the Q-site of avian respiratory complex II

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

SUCCINATE DEHYDROGENASE FLAVOPROTEIN SUBUNIT

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

SUCCINATE DEHYDROGENASE IP SUBUNIT

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

SUCCINATE DEHYDROGENASE CYTOCHROME B, SMALL SUBUNIT

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

2wqy__assembly_2__model_1

2wqy__assembly_2__model_1 | I(q)

2wqy__assembly_2__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 (18)

实体 1 Entity 1 polymer

聚合物 Polymer

实体 2 Entity 2 polymer

聚合物 Polymer

实体 3 Entity 3 polymer

聚合物 Polymer

实体 4 Entity 4 polymer

聚合物 Polymer

实体 5 Entity 5 non-polymer

实体 6 Entity 6 non-polymer

实体 7 Entity 7 non-polymer

实体 8 Entity 8 non-polymer

实体 9 Entity 9 non-polymer

实体 10 Entity 10 non-polymer

实体 11 Entity 11 non-polymer

实体 12 Entity 12 non-polymer

实体 13 Entity 13 non-polymer

实体 14 Entity 14 non-polymer

实体 15 Entity 15 non-polymer

实体 16 Entity 16 non-polymer

实体 17 Entity 17 non-polymer

实体 18 Entity 18 water

6. 折叠分类 (SCOP + CATH) 26 domains

SCOP 2.08 (8 domains)

CATH v4.4 (18 domains)

7. 引用文献 (2)