1ZZN
Crystal structure of a group I intron/two exon complex that includes all catalytic metal ion ligands.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (B) | 197-MER | polymer | 197 | 64057.0 | 1 | |||
| 2 | B (C) | 5'-R(*AP*AP*GP*CP*CP*AP*CP*AP*CP*AP*AP*AP*CP*CP*AP*GP*AP*CP*GP*GP*CP*C)-3' | polymer | 22 | 7045.4 | 1 | |||
| 3 | C (D) | 5'-R(*CP*AP*(5MU))-3' | polymer | 3 | 909.6 | 1 | |||
| 4 | D (A) | U1 SMALL NUCLEAR RIBONUCLEOPROTEIN A RNA BINDING DOMAIN | polymer | 98 | 11340.3 | 1 | UniProt (P09012) Pfam (PF00076) | Homo sapiens (human) | U1 snRNP protein A, U1A protein, U1-A |
| 5 | E, F, H, I, J (B, C) | MAGNESIUM ION | non-polymer | 24.3 | 5 | Chemie (MG) | |||
| 6 | G (B) | POTASSIUM ION | non-polymer | 39.1 | 1 | Chemie (K) | |||
| 7 | K, L (B, C) | water | water | 18.0 | 54 | Chemie (HOH) |
Sequence modifications
A: 2 - 98 (UniProt: P09012)
| PDB | External Database | Details |
|---|---|---|
| Met 1 | - | initiating methionine |
| His 31 | Tyr 30 | engineered mutation |
| Arg 36 | Gln 35 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 83352.3 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 160.6 | |
| All* | Total formula weight | 83512.9 |
