1NU4
U1A RNA binding domain at 1.8 angstrom resolution reveals a pre-organized C-terminal helix
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | U1A RNA binding domain | polymer | 97 | 11209.1 | 2 | UniProt (P09012) Pfam (PF00076) | Homo sapiens (human) | U1 snRNP A protein |
| 2 | C, D, K, L, M (A, B) | MAGNESIUM ION | non-polymer | 24.3 | 5 | Chemie (MG) | |||
| 3 | E, F, G, H, I... (A, B) | MALONIC ACID | non-polymer | 104.1 | 12 | Chemie (MLA) | |||
| 4 | T, U (A, B) | water | water | 18.0 | 99 | Chemie (HOH) |
Sequence modifications
A, B: 2 - 98 (UniProt: P09012)
| PDB | External Database | Details |
|---|---|---|
| His 31 | Tyr 31 | engineered mutation |
| Arg 36 | Gln 36 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 22418.2 | |
| Non-Polymers* | Number of molecules | 17 |
| Total formula weight | 1370.3 | |
| All* | Total formula weight | 23788.5 |
