Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein monomer | Monomer | Protein 1 | water × 1 | Consistent with protein count |
| UniProt name | ADA_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–180； UniProt 175–354 |
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 | 1sfe |
| Deposition date deposition_date | 1996-06-21 |
| Structure title title | ADA O6-METHYLGUANINE-DNA METHYLTRANSFERASE FROM ESCHERICHIA COLI |
| Keywords keywords | ENZYME, TRANSFERASE, METHYLTRANSFERASE, NUCLEIC ACID BINDING PROTEIN, DNA REPAIR PROTEIN, DNA-BINDING PROTEIN, DNA BINDING PROTEIN; DNA BINDING PROTEIN |
| 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） | 16.74 Å |
| Rg (electron density) | 15.60 Å |
| Total Rg | 16.60 Å |
| Atom count | 1257 |
| Residues | 165 |
| Excluded volume | 22310 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1sfea1 |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.4 — DNA/RNA-binding 3-helical bundle |
| Superfamily Superfamily superfamily | a.4.2 — Methylated DNA-protein cysteine methyltransferase, C-terminal domain |
| Family Family family | a.4.2.1 — Methylated DNA-protein cysteine methyltransferase, C-terminal domain |
| Domain ID domain_id | d1sfea2 |
| Class class | c — Alpha and beta proteins (a/b) |
| Fold Fold fold | c.55 — Ribonuclease H-like motif |
| Superfamily Superfamily superfamily | c.55.7 — Methylated DNA-protein cysteine methyltransferase domain |
| Family Family family | c.55.7.1 — Methylated DNA-protein cysteine methyltransferase domain |
| Domain ID domain_id | 1sfeA01 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 30 — 2-Layer Sandwich |
| Topology topology | 160 — Double Stranded RNA Binding Domain |
| Homologous superfamily homologous superfamily | 70 — Methylated DNA-protein cysteine methyltransferase domain |
| Domain ID domain_id | 1sfeA02 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 10 — Arc Repressor Mutant, subunit A |
| Homologous superfamily homologous superfamily | 10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain |