3BO4
A relaxed active site following exon ligation by a group I intron
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (B) | Group I intron P9 | polymer | 197 | 64057.0 | 1 | synthetic construct | ||
| 2 | B (C) | DNA/RNA (5'-R(*AP*AP*GP*CP*CP*AP*CP*AP*CP*AP*AP*AP*CP*CP*A)-D(P*DG)-3') | polymer | 16 | 5094.2 | 1 | synthetic construct | ||
| 3 | C (D) | DNA/RNA (5'-R(*CP*A)-D(P*DU)-R(P*AP*CP*GP*GP*CP*C)-3') | polymer | 9 | 2828.8 | 1 | synthetic construct | ||
| 4 | D (A) | U1 small nuclear ribonucleoprotein A | polymer | 95 | 11038.9 | 1 | UniProt (P09012) Pfam (PF00076) | Homo sapiens (human) | U1 snRNP protein A, U1A protein, U1-A |
| 5 | E, F, G, K, L... (B) | MAGNESIUM ION | non-polymer | 24.3 | 12 | Chemie (MG) | |||
| 6 | H, I, J, S, U... (B) | POTASSIUM ION | non-polymer | 39.1 | 6 | Chemie (K) | |||
| 7 | W, X, Y (B, C, D) | water | water | 18.0 | 33 | Chemie (HOH) |
Sequence modifications
A: 4 - 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 | 4 |
| Total formula weight | 83018.9 | |
| Non-Polymers* | Number of molecules | 18 |
| Total formula weight | 526.2 | |
| All* | Total formula weight | 83545.2 |
