DIPHTHERIA TOXIN (DIMERIC)
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 | 蛋白同源多聚体 | 同源多聚体 | 蛋白 2 | water × 2 | 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 | DTX_CORBE |
| Isoform | — |
| PDB实体 | 1 |
| 链与序列区间 | 作者链 A； PDB构建体 1–535； UniProt 26–560 |
1sgk
NUCLEOTIDE-FREE DIPHTHERIA TOXIN
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 | 1sgk |
| 沉积日期 deposition_date | 1996-09-12 |
| 结构标题 title | NUCLEOTIDE-FREE DIPHTHERIA TOXIN |
| 关键词 keywords | TOXIN, ADP-RIBOSYLATION, TRANSFERASE, GLYCOSYLTRANSFERASE, NAD, ADP-RIBOSYL TRANSFERASE; TOXIN |
| 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。
1sgk__assembly_1__model_1
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
1sgk__assembly_1__model_1 | I(q)
1sgk__assembly_1__model_1 | P(r) · Pending
| Rg（Guinier） | 33.59 Å |
| Rg（电子密度） | 32.83 Å |
| 总 Rg | 33.44 Å |
| 原子数 | 8042 |
| 残基数 | 1046 |
| 排除体积 | 142460 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 | d1sgka1 |
| 类 Class class | b — All beta proteins |
| 折叠类型 Fold fold | b.2 — Common fold of diphtheria toxin/transcription factors/cytochrome f |
| 超家族 Superfamily superfamily | b.2.1 — Diphtheria toxin, C-terminal domain |
| 家族 Family family | b.2.1.1 — Diphtheria toxin, C-terminal domain |
| 结构域编号 domain_id | d1sgka2 |
| 类 Class class | d — Alpha and beta proteins (a+b) |
| 折叠类型 Fold fold | d.166 — ADP-ribosylation |
| 超家族 Superfamily superfamily | d.166.1 — ADP-ribosylation |
| 家族 Family family | d.166.1.1 — ADP-ribosylating toxins |
| 结构域编号 domain_id | d1sgka3 |
| 类 Class class | f — Membrane and cell surface proteins and peptides |
| 折叠类型 Fold fold | f.1 — Toxins' membrane translocation domains |
| 超家族 Superfamily superfamily | f.1.2 — Diphtheria toxin, middle domain |
| 家族 Family family | f.1.2.1 — Diphtheria toxin, middle domain |
CATH v4.4 (3 domains)
| 结构域编号 domain_id | 1sgkA01 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 90 — Alpha-Beta Complex |
| 拓扑 Topology topology | 175 — Diphtheria Toxin; domain 1 |
| 同源超家族 H-superfamily homologous superfamily | 10 — Diphtheria Toxin, domain 1 |
| 结构域编号 domain_id | 1sgkA02 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 10 — Orthogonal Bundle |
| 拓扑 Topology topology | 490 — Globin-like |
| 同源超家族 H-superfamily homologous superfamily | 40 — Diphtheria toxin, translocation domain |
| 结构域编号 domain_id | 1sgkA03 |
| 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 | 700 — Diphtheria toxin, receptor-binding domain |