Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein homooligomer | Homooligomer | Protein 2 | ZINC ION × 2 METHIONINE × 2 water × 2 | 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 | 1f4l |
| Deposition date deposition_date | 2000-06-08 |
| Structure title title | CRYSTAL STRUCTURE OF THE E.COLI METHIONYL-TRNA SYNTHETASE COMPLEXED WITH METHIONINE |
| Keywords keywords | Rossmann fold, zinc domain, amino acid, tRNA, HYDROLASE; HYDROLASE |
| 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） | 38.77 Å |
| Rg (electron density) | 38.53 Å |
| Total Rg | 39.02 Å |
| Atom count | 8788 |
| Residues | 1090 |
| Excluded volume | 155810 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1f4la1 |
| 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 | d1f4la2 |
| 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 | d1f4la3 |
| Class class | g — Small proteins |
| Fold Fold fold | g.41 — Rubredoxin-like |
| Superfamily Superfamily superfamily | g.41.1 — Methionyl-tRNA synthetase (MetRS), Zn-domain |
| Family Family family | g.41.1.1 — Methionyl-tRNA synthetase (MetRS), Zn-domain |
| Domain ID domain_id | 1f4lA01 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 20 — Single Sheet |
| Topology topology | 28 — Rubrerythrin, domain 2 |
| Homologous superfamily homologous superfamily | 20 — Methionyl-tRNA synthetase, Zn-domain |
| Domain ID domain_id | 1f4lA02 |
| 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 | 1f4lA03 |
| 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 |