1ken

INFLUENZA VIRUS HEMAGGLUTININ COMPLEXED WITH AN ANTIBODY THAT PREVENTS THE HEMAGGLUTININ LOW PH FUSOGENIC TRANSITION

Method: X-RAY DIFFRACTION

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

hemagglutinin HA2

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	异源复合物	蛋白 10 其他聚合物 3	hemagglutinin HA1 × 3 influenza virus infectivity neutralizing antibody (light chain) × 2 influenza virus infectivity neutralizing antibody (heavy chain) × 2 alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3	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	HEMA_IAAIC
Isoform	—
PDB实体	2
链与序列区间	作者链 B； PDB构建体 1–175； UniProt 346–520 作者链 D； PDB构建体 1–175； UniProt 346–520 作者链 F； PDB构建体 1–175； UniProt 346–520

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	1ken
沉积日期 deposition_date	2001-11-16
结构标题 title	INFLUENZA VIRUS HEMAGGLUTININ COMPLEXED WITH AN ANTIBODY THAT PREVENTS THE HEMAGGLUTININ LOW PH FUSOGENIC TRANSITION
关键词 keywords	HEMAGGLUTININ, ENVELOPE PROTEIN, GLYCOPROTEIN, Viral protein-Immune system COMPLEX; Viral protein/Immune system
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。

1ken__assembly_1__model_1

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

下载该曲线 .dat

1ken__assembly_1__model_1 | I(q)

100 个绘图点；横轴和纵轴均采用对数尺度。

1ken__assembly_1__model_1 | P(r) · Pending

P(r) 将按相同 assembly/model 分别计算和展示。

Rg（Guinier）	54.71 Å
Rg（电子密度）	55.01 Å
总 Rg	55.02 Å
原子数	18492
残基数	2351
排除体积	326110 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	`1ken__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 (5)

实体 1 Entity 1 polymer

描述 description	hemagglutinin HA1
分子量 formula_weight	36065.5 kDa
来源方法 src_method	nat
拷贝数 entity_count	3

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	A,C,E
原子数 atom_count	18492

QDLPGNDNSTATLCLGHHAVPNGTLVKTITDDQIEVTNATELVQSSSTGKICNNPHRILDGIDCTLIDALLGDPHCDVFQNETWDLFVERSKAFSNCYPYDVPDYASLRSLVASSGTLEFITEGFTWTGVTQNGGSNACKRGPGSGFFSRLNWLTKSGSTYPVLNVTMPNNDNFDKLYIWGIHHPSTNQEQTSLYVQASGRVTVSTRRSQQTIIPNIGSRPWVRGLSSRISIYWTIVKPGDVLVINSNGNLIAPRGYFKMRTGKSSIMRSDAPIDTCISECITPNGSIPNDKPFQNVNKITYGACPKYVKQNTLKLATGMRNVPEKQT

实体 2 Entity 2 polymer

描述 description	hemagglutinin HA2
分子量 formula_weight	20212.3 kDa
来源方法 src_method	nat
拷贝数 entity_count	3

聚合物 Polymer

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

GLFGAIAGFIENGWEGMIDGWYGFRHQNSEGTGQAADLKSTQAAIDQINGKLNRVIEKTNEKFHQIEKEFSEVEGRIQDLEKYVEDTKIDLWSYNAELLVALENQHTIDLTDSEMNKLFEKTRRQLRENAEEMGNGCFKIYHKCDNACIESIRNGTYDHDVYRDEALNNRFQIKG

实体 3 Entity 3 polymer

描述 description	influenza virus infectivity neutralizing antibody (light chain)
分子量 formula_weight	23275.8 kDa
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	L,U

QIVLTQSPAIMSASPGEKVTLTCSASSTITSSFLYWYQQKPGSSPKLWIYSTSNLASGVPARFSGSGSGTSYSLTISSLEAEDGASYFCHQWETFPRTFGGGTKLEIKRADAAPTVSIFPPSKIQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRN

实体 4 Entity 4 polymer

描述 description	influenza virus infectivity neutralizing antibody (heavy chain)
分子量 formula_weight	24352.0 kDa
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	H,T

DVHLQESGPGLVKPSQSLSLTCYVTGYSITSGYYWTWIRQFPGNKLEWMGYISYDGSNNYNPSLKNRISITRDTSKNQFFLKLNSVTAEDTASYYCAAFYYDYDFFFDYWGQGTTLTVSSAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSTWPSETVTCNVAHPASSTKVDKKIVPRD

实体 5 Entity 5 branched

描述 description	alpha-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	586.5 kDa
来源方法 src_method	man
拷贝数 entity_count	3

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6. 折叠分类 (SCOP + CATH) 28 domains

SCOP 2.08 (14 domains)

结构域编号 domain_id	d1kena_
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.19 — Viral protein domain
超家族 Superfamily superfamily	b.19.1 — Viral protein domain
家族 Family family	b.19.1.2 — Influenza hemagglutinin headpiece

结构域编号 domain_id	d1kenb_
类 Class class	h — Coiled coil proteins
折叠类型 Fold fold	h.3 — Stalk segment of viral fusion proteins
超家族 Superfamily superfamily	h.3.1 — Influenza hemagglutinin (stalk)
家族 Family family	h.3.1.1 — Influenza hemagglutinin (stalk)

结构域编号 domain_id	d1kenc_
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.19 — Viral protein domain
超家族 Superfamily superfamily	b.19.1 — Viral protein domain
家族 Family family	b.19.1.2 — Influenza hemagglutinin headpiece

结构域编号 domain_id	d1kend_
类 Class class	h — Coiled coil proteins
折叠类型 Fold fold	h.3 — Stalk segment of viral fusion proteins
超家族 Superfamily superfamily	h.3.1 — Influenza hemagglutinin (stalk)
家族 Family family	h.3.1.1 — Influenza hemagglutinin (stalk)

结构域编号 domain_id	d1kene_
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.19 — Viral protein domain
超家族 Superfamily superfamily	b.19.1 — Viral protein domain
家族 Family family	b.19.1.2 — Influenza hemagglutinin headpiece

结构域编号 domain_id	d1kenf_
类 Class class	h — Coiled coil proteins
折叠类型 Fold fold	h.3 — Stalk segment of viral fusion proteins
超家族 Superfamily superfamily	h.3.1 — Influenza hemagglutinin (stalk)
家族 Family family	h.3.1.1 — Influenza hemagglutinin (stalk)

结构域编号 domain_id	d1kenh1
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.1 — V set domains (antibody variable domain-like)

结构域编号 domain_id	d1kenh2
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.2 — C1 set domains (antibody constant domain-like)

结构域编号 domain_id	d1kenl1
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.1 — V set domains (antibody variable domain-like)

结构域编号 domain_id	d1kenl2
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.2 — C1 set domains (antibody constant domain-like)

结构域编号 domain_id	d1kent1
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.1 — V set domains (antibody variable domain-like)

结构域编号 domain_id	d1kent2
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.2 — C1 set domains (antibody constant domain-like)

结构域编号 domain_id	d1kenu1
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.1 — V set domains (antibody variable domain-like)

结构域编号 domain_id	d1kenu2
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.1.1 — Immunoglobulin
家族 Family family	b.1.1.2 — C1 set domains (antibody constant domain-like)

CATH v4.4 (14 domains)

结构域编号 domain_id	1kenA01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	209 — Hemagglutinin (Ha1 Chain); Chain: A; domain 1
同源超家族 H-superfamily homologous superfamily	20 — Haemagglutinin, alpha/beta domain, HA1 chain

结构域编号 domain_id	1kenB00
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	20 — Hemagglutinin Ectodomain; Chain B
同源超家族 H-superfamily homologous superfamily	10 —

结构域编号 domain_id	1kenC01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	209 — Hemagglutinin (Ha1 Chain); Chain: A; domain 1
同源超家族 H-superfamily homologous superfamily	20 — Haemagglutinin, alpha/beta domain, HA1 chain

结构域编号 domain_id	1kenD00
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	20 — Hemagglutinin Ectodomain; Chain B
同源超家族 H-superfamily homologous superfamily	10 —

结构域编号 domain_id	1kenE01
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	209 — Hemagglutinin (Ha1 Chain); Chain: A; domain 1
同源超家族 H-superfamily homologous superfamily	20 — Haemagglutinin, alpha/beta domain, HA1 chain

结构域编号 domain_id	1kenF00
类 Class class	3 — Alpha Beta
架构 Architecture architecture	90 — Alpha-Beta Complex
拓扑 Topology topology	20 — Hemagglutinin Ectodomain; Chain B
同源超家族 H-superfamily homologous superfamily	10 —

结构域编号 domain_id	1kenH01
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	1kenH02
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	1kenL01
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	1kenL02
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	1kenT01
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	1kenT02
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	1kenU01
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	1kenU02
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

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晶胞边长 a length_a	143.041 Å
晶胞边长 b length_b	315.588 Å
晶胞边长 c length_c	97.029 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	12

空间群 space_group	P 21 21 2
空间群编号 int_tables_number	18
晶系 crystal_system	—

分辨率 resolution	3.500 Å
最低分辨率 resolution_low	25.000 Å
R 因子 r_factor	—
R_work r_work	0.2550
R_free r_free	0.3230

INFLUENZA VIRUS HEMAGGLUTININ COMPLEXED WITH AN ANTIBODY THAT PREVENTS THE HEMAGGLUTININ LOW PH FUSOGENIC TRANSITION

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

hemagglutinin HA2

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

1ken__assembly_1__model_1

1ken__assembly_1__model_1 | I(q)

1ken__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 (5)

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 branched

6. 折叠分类 (SCOP + CATH) 28 domains

SCOP 2.08 (14 domains)

CATH v4.4 (14 domains)

7. 引用文献 (2)

INFLUENZA VIRUS HEMAGGLUTININ COMPLEXED WITH AN ANTIBODY THAT PREVENTS THE HEMAGGLUTININ LOW PH FUSOGENIC TRANSITION

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

hemagglutinin HA2

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

1ken__assembly_1__model_1

1ken__assembly_1__model_1 | I(q)

1ken__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 (5)

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 branched

6. 折叠分类 (SCOP + CATH) 28 domains

SCOP 2.08 (14 domains)

CATH v4.4 (14 domains)

7. 引用文献 (2)