3U1K
Crystal structure of human PNPase
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D (A, C, B, D) | Polyribonucleotide nucleotidyltransferase 1, mitochondrial | polymer | 630 | 68809.6 | 4 | UniProt (Q8TCS8) Pfam (PF01138) Pfam (PF03725) Pfam (PF03726) Pfam (PF00013) | Homo sapiens (human) | 3'-5' RNA exonuclease OLD35, PNPase old-35, Polynucleotide phosphorylase 1, PNPase 1, Polynucleotide phosphorylase-like protein |
| 2 | E, F, G, H, I... (A, C, B, D) | CITRIC ACID | non-polymer | 192.1 | 8 | Chemie (CIT) | |||
| 3 | M, N, O, P (A, C, B, D) | water | water | 18.0 | 1172 | Chemie (HOH) |
Sequence modifications
A, C, B, D: 46 - 669 (UniProt: Q8TCS8)
| PDB | External Database | Details |
|---|---|---|
| Gly 40 | - | expression tag |
| Ser 41 | - | expression tag |
| His 42 | - | expression tag |
| Met 43 | - | expression tag |
| Ala 44 | - | expression tag |
| Ser 45 | - | expression tag |
| Val 121 | Ile 121 | SEE REMARK 999 |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 275238.4 | |
| Non-Polymers* | Number of molecules | 8 |
| Total formula weight | 1537.0 | |
| All* | Total formula weight | 276775.4 |
