CD81 antigen
Homo sapiens
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 | SINGLE CHAIN FV FRAGMENT × 2 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 | CD81_HUMAN |
| Isoform | — |
| PDB实体 | 1 |
| 链与序列区间 | 作者链 A； PDB构建体 3–92； UniProt 112–201 |
5dfw
CRYSTAL STRUCTURE OF HUMAN CD81 LARGE EXTRACELLULAR LOOP IN COMPLEX WITH SINGLE CHAIN FV FRAGMENT K13
1. 蛋白身份与相关结构 Protein Identity & Related Structures
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。
2. 结构基本信息 2. Structure Basics
| 条目编号 entry_id | 5dfw |
| 沉积日期 deposition_date | 2015-08-27 |
| 结构标题 title | CRYSTAL STRUCTURE OF HUMAN CD81 LARGE EXTRACELLULAR LOOP IN COMPLEX WITH SINGLE CHAIN FV FRAGMENT K13 |
| 关键词 keywords | HELICAL BUNDLE, ANTIBODY-ANTIGEN COMPLEX, CELL ADHESION; CELL ADHESION |
| 实验方法 method | X-RAY DIFFRACTION |
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。
5dfw__assembly_1__model_1
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
5dfw__assembly_1__model_1 | I(q)
5dfw__assembly_1__model_1 | P(r) · Pending
| Rg（Guinier） | 28.96 Å |
| Rg（电子密度） | 28.43 Å |
| 总 Rg | 29.16 Å |
| 原子数 | 4836 |
| 残基数 | 624 |
| 排除体积 | 85376 ų |
| 最大 q | 0.500 Å⁻¹ |
4. 晶体学与实验 4. Crystallography & Experiment
5. 实体与聚合物信息 Entities & Polymers (3)
6. 折叠分类 (SCOP + CATH) 7 domains
SCOP 2.08 (4 domains)
| 结构域编号 domain_id | d5dfwa1 |
| 类 Class class | a — All alpha proteins |
| 折叠类型 Fold fold | a.135 — Tetraspanin |
| 超家族 Superfamily superfamily | a.135.1 — Tetraspanin |
| 家族 Family family | a.135.1.1 — Tetraspanin |
| 结构域编号 domain_id | d5dfwa2 |
| 类 Class class | l — Artifacts |
| 折叠类型 Fold fold | l.1 — Tags |
| 超家族 Superfamily superfamily | l.1.1 — Tags |
| 家族 Family family | l.1.1.1 — Tags |
| 结构域编号 domain_id | d5dfwh1 |
| 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.1.1.0 — automated matches |
| 结构域编号 domain_id | d5dfwh2 |
| 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.1.1.0 — automated matches |
CATH v4.4 (3 domains)
| 结构域编号 domain_id | 5dfwA00 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 10 — Orthogonal Bundle |
| 拓扑 Topology topology | 1450 — Cd81 Antigen, Extracellular Domain; Chain: A |
| 同源超家族 H-superfamily homologous superfamily | 10 — Tetraspanin |
| 结构域编号 domain_id | 5dfwH01 |
| 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 | 5dfwH02 |
| 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 |