2a5h
2.1 Angstrom X-ray crystal structure of lysine-2,3-aminomutase from Clostridium subterminale SB4, with Michaelis analog (L-alpha-lysine external aldimine form of pyridoxal-5'-phosphate).
1. 蛋白身份与相关结构 Protein Identity & Related Structures
当前条目没有可用的 UniProt 蛋白身份。
七张关系表仍保留该条目的 assembly 与组成信息，但缺少统一蛋白身份时，不能可靠建立跨 PDB 的同蛋白链接。
当前条目的 assembly 组成
| Assembly | 物理组成 | 蛋白状态 | 蛋白 / DNA / RNA / 其他聚合物 | 数据核对 |
|---|---|---|---|---|
| 1 | 蛋白同源多聚体 | 同源多聚体 | 4 / 0 / 0 / 0 | 与蛋白数一致 |
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 | 2a5h |
| 沉积日期 deposition_date | 2005-06-30 |
| 结构标题 title | 2.1 Angstrom X-ray crystal structure of lysine-2,3-aminomutase from Clostridium subterminale SB4, with Michaelis analog (L-alpha-lysine external aldimine form of pyridoxal-5'-phosphate). |
| 关键词 keywords | ;radical sam, four-iron-four-sulfur cluster, 4Fe4S, FS4, SAM, S-adenosylmethionine, alpha-beta channel, pyridoxal-5'-phosphate, external aldimine, Michaelis analog, ISOMERASE ;; ISOMERASE |
| 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。
2a5h__assembly_1__model_1
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
2a5h__assembly_1__model_1 | I(q)
2a5h__assembly_1__model_1 | P(r) · Pending
| Rg（Guinier） | 36.31 Å |
| Rg（电子密度） | 35.78 Å |
| 总 Rg | 36.18 Å |
| 原子数 | 13254 |
| 残基数 | 1602 |
| 排除体积 | 236680 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 (8)
6. 折叠分类 (SCOP + CATH) 12 domains
CATH v4.4 (12 domains)
| 结构域编号 domain_id | 2a5hA01 |
| 类 Class class | 6 — Special |
| 架构 Architecture architecture | 10 — Helix non-globular |
| 拓扑 Topology topology | 140 — Helix Hairpins |
| 同源超家族 H-superfamily homologous superfamily | 1170 — |
| 结构域编号 domain_id | 2a5hA02 |
| 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 | 70 — Aldolase class I |
| 结构域编号 domain_id | 2a5hA03 |
| 类 Class class | 6 — Special |
| 架构 Architecture architecture | 20 — Other non-globular |
| 拓扑 Topology topology | 120 — OB fold (Dihydrolipoamide Acetyltransferase, E2P) |
| 同源超家族 H-superfamily homologous superfamily | 40 — |
| 结构域编号 domain_id | 2a5hB01 |
| 类 Class class | 6 — Special |
| 架构 Architecture architecture | 10 — Helix non-globular |
| 拓扑 Topology topology | 140 — Helix Hairpins |
| 同源超家族 H-superfamily homologous superfamily | 1170 — |
| 结构域编号 domain_id | 2a5hB02 |
| 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 | 70 — Aldolase class I |
| 结构域编号 domain_id | 2a5hB03 |
| 类 Class class | 6 — Special |
| 架构 Architecture architecture | 20 — Other non-globular |
| 拓扑 Topology topology | 120 — OB fold (Dihydrolipoamide Acetyltransferase, E2P) |
| 同源超家族 H-superfamily homologous superfamily | 40 — |
| 结构域编号 domain_id | 2a5hC01 |
| 类 Class class | 6 — Special |
| 架构 Architecture architecture | 10 — Helix non-globular |
| 拓扑 Topology topology | 140 — Helix Hairpins |
| 同源超家族 H-superfamily homologous superfamily | 1170 — |
| 结构域编号 domain_id | 2a5hC02 |
| 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 | 70 — Aldolase class I |
| 结构域编号 domain_id | 2a5hC03 |
| 类 Class class | 6 — Special |
| 架构 Architecture architecture | 20 — Other non-globular |
| 拓扑 Topology topology | 120 — OB fold (Dihydrolipoamide Acetyltransferase, E2P) |
| 同源超家族 H-superfamily homologous superfamily | 40 — |
| 结构域编号 domain_id | 2a5hD01 |
| 类 Class class | 6 — Special |
| 架构 Architecture architecture | 10 — Helix non-globular |
| 拓扑 Topology topology | 140 — Helix Hairpins |
| 同源超家族 H-superfamily homologous superfamily | 1170 — |
| 结构域编号 domain_id | 2a5hD02 |
| 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 | 70 — Aldolase class I |
| 结构域编号 domain_id | 2a5hD03 |
| 类 Class class | 6 — Special |
| 架构 Architecture architecture | 20 — Other non-globular |
| 拓扑 Topology topology | 120 — OB fold (Dihydrolipoamide Acetyltransferase, E2P) |
| 同源超家族 H-superfamily homologous superfamily | 40 — |