OrganismNot specified
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein homooligomer | Homooligomer | Protein 2 | SULFATE ION × 2 water × 2 | Consistent with protein count |
| UniProt name | SYH_THETH |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain B； PDBConstruct 1–421； UniProt 1–421 |
The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.
| Entry ID entry_id | 1h4v |
| Deposition date deposition_date | 2001-05-14 |
| Structure title title | HISTIDYL-TRNA SYNTHETASE from Thermus Thermophilus (ligand free) |
| Keywords keywords | TRNA SYNTHETASE, CLASS IIA AMINOACYL-TRNA SYNTHETASE, ATP + L-HISTIDINE TRNA(HIS)-> AMP + PPI + L-HISTIDYL-TRNA(HIS); TRNA SYNTHETASE |
| Experimental Method method | X-RAY DIFFRACTION |
This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
| Rg（Guinier） | 31.64 Å |
| Rg (electron density) | 30.83 Å |
| Total Rg | 31.44 Å |
| Atom count | 6382 |
| Residues | 808 |
| Excluded volume | 113600 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1h4vb1 |
| Class class | c — Alpha and beta proteins (a/b) |
| Fold Fold fold | c.51 — Anticodon-binding domain-like |
| Superfamily Superfamily superfamily | c.51.1 — Class II aaRS ABD-related |
| Family Family family | c.51.1.1 — Anticodon-binding domain of Class II aaRS |
| Domain ID domain_id | d1h4vb2 |
| Class class | d — Alpha and beta proteins (a+b) |
| Fold Fold fold | d.104 — Class II aaRS and biotin synthetases |
| Superfamily Superfamily superfamily | d.104.1 — Class II aaRS and biotin synthetases |
| Family Family family | d.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain |
| Domain ID domain_id | 1h4vB01 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 30 — 2-Layer Sandwich |
| Topology topology | 930 — BirA Bifunctional Protein; domain 2 |
| Homologous superfamily homologous superfamily | 10 — Bira Bifunctional Protein; Domain 2 |
| Domain ID domain_id | 1h4vB02 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| Topology topology | 50 — Rossmann fold |
| Homologous superfamily homologous superfamily | 800 — Anticodon-binding domain |