Complement C2
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 | 蛋白单体 | 单体 | 蛋白 1 | 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 | CO2_HUMAN |
| Isoform | — |
| PDB实体 | 1 |
| 链与序列区间 | 作者链 A； PDB构建体 1–223； UniProt 21–243 |
3erb
The Crystal Structure of C2b, a Fragment of Complement Component C2 produced during C3-convertase Formation
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 | 3erb |
| 沉积日期 deposition_date | 2008-10-01 |
| 结构标题 title | The Crystal Structure of C2b, a Fragment of Complement Component C2 produced during C3-convertase Formation |
| 关键词 keywords | ;Complement component C2b, C3/C5 convertase, complement control protein (CCP), short consensus repeat(SCR), Sushi domain, human complement system, complement second component C2, Complement pathway, Disease mutation, Glycoprotein, Hydrolase, Immune response, Innate immunity, Polymorphism, Protease, Secreted, Serine protease, Sushi ;; HYDROLASE |
| 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。
3erb__assembly_1__model_1
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
3erb__assembly_1__model_1 | I(q)
3erb__assembly_1__model_1 | P(r) · Pending
| Rg（Guinier） | 21.33 Å |
| Rg（电子密度） | 20.90 Å |
| 总 Rg | 21.46 Å |
| 原子数 | 1410 |
| 残基数 | 188 |
| 排除体积 | 24596 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 (2)
6. 折叠分类 (SCOP + CATH) 6 domains
SCOP 2.08 (3 domains)
| 结构域编号 domain_id | d3erba1 |
| 类 Class class | g — Small proteins |
| 折叠类型 Fold fold | g.18 — Complement control module/SCR domain |
| 超家族 Superfamily superfamily | g.18.1 — Complement control module/SCR domain |
| 家族 Family family | g.18.1.0 — automated matches |
| 结构域编号 domain_id | d3erba2 |
| 类 Class class | g — Small proteins |
| 折叠类型 Fold fold | g.18 — Complement control module/SCR domain |
| 超家族 Superfamily superfamily | g.18.1 — Complement control module/SCR domain |
| 家族 Family family | g.18.1.0 — automated matches |
| 结构域编号 domain_id | d3erba3 |
| 类 Class class | g — Small proteins |
| 折叠类型 Fold fold | g.18 — Complement control module/SCR domain |
| 超家族 Superfamily superfamily | g.18.1 — Complement control module/SCR domain |
| 家族 Family family | g.18.1.0 — automated matches |
CATH v4.4 (3 domains)
| 结构域编号 domain_id | 3erbA01 |
| 类 Class class | 2 — Mainly Beta |
| 架构 Architecture architecture | 10 — Ribbon |
| 拓扑 Topology topology | 70 — Complement Module; domain 1 |
| 同源超家族 H-superfamily homologous superfamily | 10 — Complement Module, domain 1 |
| 结构域编号 domain_id | 3erbA02 |
| 类 Class class | 2 — Mainly Beta |
| 架构 Architecture architecture | 10 — Ribbon |
| 拓扑 Topology topology | 70 — Complement Module; domain 1 |
| 同源超家族 H-superfamily homologous superfamily | 10 — Complement Module, domain 1 |
| 结构域编号 domain_id | 3erbA03 |
| 类 Class class | 2 — Mainly Beta |
| 架构 Architecture architecture | 10 — Ribbon |
| 拓扑 Topology topology | 70 — Complement Module; domain 1 |
| 同源超家族 H-superfamily homologous superfamily | 10 — Complement Module, domain 1 |