Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein monomer | Monomer | Protein 1 | ADENOSINE × 1 METHIONINE × 1 water × 1 | Consistent with protein count |
| UniProt name | SYM_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–551； UniProt 1–551 |
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 | 1pg2 |
| Deposition date deposition_date | 2003-05-27 |
| Structure title title | METHIONYL-TRNA SYNTHETASE FROM ESCHERICHIA COLI COMPLEXED WITH METHIONINE AND ADENOSINE |
| Keywords keywords | Rossmann fold, LIGASE; LIGASE |
| 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） | 26.43 Å |
| Rg (electron density) | 25.71 Å |
| Total Rg | 26.40 Å |
| Atom count | 3972 |
| Residues | 488 |
| Excluded volume | 70288 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1pg2a1 |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.27 — Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases |
| Superfamily Superfamily superfamily | a.27.1 — Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases |
| Family Family family | a.27.1.1 — Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases |
| Domain ID domain_id | d1pg2a2 |
| Class class | c — Alpha and beta proteins (a/b) |
| Fold Fold fold | c.26 — Adenine nucleotide alpha hydrolase-like |
| Superfamily Superfamily superfamily | c.26.1 — Nucleotidylyl transferase |
| Family Family family | c.26.1.1 — Class I aminoacyl-tRNA synthetases (RS), catalytic domain |
| Domain ID domain_id | 1pg2A01 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| Topology topology | 50 — Rossmann fold |
| Homologous superfamily homologous superfamily | 620 — HUPs |
| Domain ID domain_id | 1pg2A02 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 730 — Isoleucyl-tRNA Synthetase; Domain 1 |
| Homologous superfamily homologous superfamily | 10 — Isoleucyl-tRNA Synthetase; Domain 1 |