CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
3 | Alpha Beta |
|
3.30 | 2-Layer Sandwich |
|
3.30.1490 | Dna Ligase; domain 1 |
|
3.30.1490.100 | DNA polymerase, Y-family, little finger domain |
Domain Context
CATH Clusters
| Superfamily | DNA polymerase, Y-family, little finger domain |
| Functional Family | DNA polymerase IV |
Enzyme Information
| 2.7.7.7 |
DNA-directed DNA polymerase.
based on mapping to UniProt Q4JB80
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1).
-!- Catalyzes DNA-template-directed extension of the 3'-end of a DNA strand by one nucleotide at a time. -!- Cannot initiate a chain de novo. -!- Requires a primer which may be DNA or RNA. -!- See also EC 2.7.7.49.
|
| 2.7.7.7 |
DNA-directed DNA polymerase.
based on mapping to UniProt Q97W02
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1).
-!- Catalyzes DNA-template-directed extension of the 3'-end of a DNA strand by one nucleotide at a time. -!- Cannot initiate a chain de novo. -!- Requires a primer which may be DNA or RNA. -!- See also EC 2.7.7.49.
|
UniProtKB Entries (2)
| Q97W02 |
DPO4_SULSO
Sulfolobus solfataricus P2
DNA polymerase IV
|
| Q4JB80 |
DPO4_SULAC
Sulfolobus acidocaldarius DSM 639
DNA polymerase IV
|
PDB Structure
| PDB | 4F4W |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Y-family polymerase conformation is a major determinant of fidelity and translesion specificity.
Structure
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