Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein homooligomer | Homooligomer | Protein 8 | L-NEOPTERIN × 8 water × 8 | Consistent with protein count |
| UniProt name | FOLB_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–122； UniProt 1–122 |
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 | 2o90 |
| Deposition date deposition_date | 2006-12-12 |
| Structure title title | Atomic resolution crystal structure of E.coli dihydroneopterin aldolase in complex with neopterin |
| Keywords keywords | DIHYDRONEOPTERIN ALDOLASE, DHNA, NEOPTERIN, MONAPTERIN, 7, 8-DIHYDRONEOPTERIN, DRUG DESIGN, ATOMIC RESOLUTION, LYASE; LYASE |
| 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） | 29.45 Å |
| Rg (electron density) | 27.91 Å |
| Total Rg | 28.78 Å |
| Atom count | 7344 |
| Residues | 920 |
| Excluded volume | 131000 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d2o90a_ |
| Class class | d — Alpha and beta proteins (a+b) |
| Fold Fold fold | d.96 — T-fold |
| Superfamily Superfamily superfamily | d.96.1 — Tetrahydrobiopterin biosynthesis enzymes-like |
| Family Family family | d.96.1.0 — automated matches |
| Domain ID domain_id | 2o90A00 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 30 — 2-Layer Sandwich |
| Topology topology | 1130 — GTP Cyclohydrolase I, domain 2 |
| Homologous superfamily homologous superfamily | 10 — GTP cyclohydrolase I, C-terminal domain/NADPH-dependent 7-cyano-7-deazaguanine reductase, N-terminal domain |