CHITOBIASE
Serratia marcescens
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 | SULFATE ION × 4 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 | CHB_SERMA |
| Isoform | — |
| PDB实体 | 1 |
| 链与序列区间 | 作者链 A； PDB构建体 1–858； UniProt 28–885 |
1qba
BACTERIAL CHITOBIASE, GLYCOSYL HYDROLASE FAMILY 20
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 | 1qba |
| 沉积日期 deposition_date | 1996-06-06 |
| 结构标题 title | BACTERIAL CHITOBIASE, GLYCOSYL HYDROLASE FAMILY 20 |
| 关键词 keywords | GLYCOSYL HYDROLASE, CHITOBIASE, CHITINOLYSIS, BA8-BARREL; GLYCOSYL 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。
1qba__assembly_1__model_1
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
1qba__assembly_1__model_1 | I(q)
1qba__assembly_1__model_1 | P(r) · Pending
| Rg（Guinier） | 28.76 Å |
| Rg（电子密度） | 27.81 Å |
| 总 Rg | 28.75 Å |
| 原子数 | 13286 |
| 残基数 | 858 |
| 排除体积 | 119670 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) 8 domains
SCOP 2.08 (4 domains)
| 结构域编号 domain_id | d1qbaa1 |
| 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.1.18 — E set domains |
| 家族 Family family | b.1.18.2 — E-set domains of sugar-utilizing enzymes |
| 结构域编号 domain_id | d1qbaa2 |
| 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.2.2 — Carbohydrate-binding domain |
| 家族 Family family | b.2.2.3 — Bacterial chitobiase, n-terminal domain |
| 结构域编号 domain_id | d1qbaa3 |
| 类 Class class | c — Alpha and beta proteins (a/b) |
| 折叠类型 Fold fold | c.1 — TIM beta/alpha-barrel |
| 超家族 Superfamily superfamily | c.1.8 — (Trans)glycosidases |
| 家族 Family family | c.1.8.6 — beta-N-acetylhexosaminidase catalytic domain |
| 结构域编号 domain_id | d1qbaa4 |
| 类 Class class | d — Alpha and beta proteins (a+b) |
| 折叠类型 Fold fold | d.92 — Zincin-like |
| 超家族 Superfamily superfamily | d.92.2 — beta-N-acetylhexosaminidase-like domain |
| 家族 Family family | d.92.2.1 — beta-N-acetylhexosaminidase domain |
CATH v4.4 (4 domains)
| 结构域编号 domain_id | 1qbaA01 |
| 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 | 290 — |
| 结构域编号 domain_id | 1qbaA02 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 30 — 2-Layer Sandwich |
| 拓扑 Topology topology | 379 — Chitobiase; domain 2 |
| 同源超家族 H-superfamily homologous superfamily | 10 — Chitobiase/beta-hexosaminidase domain 2-like |
| 结构域编号 domain_id | 1qbaA03 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 20 — Alpha-Beta Barrel |
| 拓扑 Topology topology | 20 — TIM Barrel |
| 同源超家族 H-superfamily homologous superfamily | 80 — Glycosidases |
| 结构域编号 domain_id | 1qbaA04 |
| 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 |