2g8l
Crystal structure of a duf89 family protein (ph1575) from pyrococcus horikoshii at 2.04 A resolution
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 | 2 / 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 | 2g8l |
| 沉积日期 deposition_date | 2006-03-02 |
| 结构标题 title | Crystal structure of a duf89 family protein (ph1575) from pyrococcus horikoshii at 2.04 A resolution |
| 关键词 keywords | Structural genomics, Joint Center for Structural Genomics, JCSG, Protein Structure Initiative, PSI-2, unknown function; UNKNOWN FUNCTION |
| 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。
2g8l__assembly_1__model_1
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
2g8l__assembly_1__model_1 | I(q)
2g8l__assembly_1__model_1 | P(r) · Pending
| Rg（Guinier） | 28.88 Å |
| Rg（电子密度） | 28.55 Å |
| 总 Rg | 28.90 Å |
| 原子数 | 4477 |
| 残基数 | 553 |
| 排除体积 | 81537 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 (4)
6. 折叠分类 (SCOP + CATH) 9 domains
SCOP 2.08 (3 domains)
| 结构域编号 domain_id | d2g8la1 |
| 类 Class class | e — Multi-domain proteins (alpha and beta) |
| 折叠类型 Fold fold | e.50 — AF1104-like |
| 超家族 Superfamily superfamily | e.50.1 — AF1104-like |
| 家族 Family family | e.50.1.1 — AF1104-like |
| 结构域编号 domain_id | d2g8la2 |
| 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 | d2g8lb_ |
| 类 Class class | e — Multi-domain proteins (alpha and beta) |
| 折叠类型 Fold fold | e.50 — AF1104-like |
| 超家族 Superfamily superfamily | e.50.1 — AF1104-like |
| 家族 Family family | e.50.1.1 — AF1104-like |
CATH v4.4 (6 domains)
| 结构域编号 domain_id | 2g8lA01 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 10 — Orthogonal Bundle |
| 拓扑 Topology topology | 8 — Helicase, Ruva Protein; domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 380 — Uncharacterised protein PF01937, DUF89, domain 1 |
| 结构域编号 domain_id | 2g8lA02 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 10 — Orthogonal Bundle |
| 拓扑 Topology topology | 285 — Glutamate Dehydrogenase; Chain A, domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 20 — Uncharacterised protein PF01937, DUF89, domain 2 |
| 结构域编号 domain_id | 2g8lA03 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| 拓扑 Topology topology | 50 — Rossmann fold |
| 同源超家族 H-superfamily homologous superfamily | 10880 — Uncharacterised protein PF01937, DUF89, domain 3 |
| 结构域编号 domain_id | 2g8lB01 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 10 — Orthogonal Bundle |
| 拓扑 Topology topology | 8 — Helicase, Ruva Protein; domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 380 — Uncharacterised protein PF01937, DUF89, domain 1 |
| 结构域编号 domain_id | 2g8lB02 |
| 类 Class class | 1 — Mainly Alpha |
| 架构 Architecture architecture | 10 — Orthogonal Bundle |
| 拓扑 Topology topology | 285 — Glutamate Dehydrogenase; Chain A, domain 3 |
| 同源超家族 H-superfamily homologous superfamily | 20 — Uncharacterised protein PF01937, DUF89, domain 2 |
| 结构域编号 domain_id | 2g8lB03 |
| 类 Class class | 3 — Alpha Beta |
| 架构 Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| 拓扑 Topology topology | 50 — Rossmann fold |
| 同源超家族 H-superfamily homologous superfamily | 10880 — Uncharacterised protein PF01937, DUF89, domain 3 |