3IIN
Plasticity of the kink turn structural motif
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | U1 small nuclear ribonucleoprotein A | polymer | 95 | 11038.9 | 1 | UniProt (P09012) Pfam (PF00076) In PDB | Homo sapiens (human) | U1 snRNP protein A, U1A protein, U1-A |
| 2 | B | Group I intron | polymer | 197 | 64057.0 | 1 | |||
| 3 | C | DNA/RNA (5'-R(*AP*AP*GP*CP*CP*AP*CP*AP*CP*AP*GP*AP*CP*C)-D(P*AP*GP*A)-R(P*CP*GP*GP*CP*C)-3') | polymer | 22 | 7013.4 | 1 | |||
| 4 | D | DNA/RNA (5'-R(*CP*A)-D(P*T)-3') | polymer | 3 | 893.6 | 1 | |||
| 5 | B | POTASSIUM ION | non-polymer | 39.1 | 5 | Chemie (K) | |||
| 6 | B | MAGNESIUM ION | non-polymer | 24.3 | 13 | Chemie (MG) | |||
| 7 | water | water | 18.0 | 1 | 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 | 83002.9 | |
| Non-Polymers* | Number of molecules | 18 |
| Total formula weight | 511.5 | |
| All* | Total formula weight | 83514.4 |
