CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
3 | Alpha Beta |
|
3.40 | 3-Layer(aba) Sandwich |
|
3.40.50 | Rossmann fold |
|
3.40.50.300 | P-loop containing nucleotide triphosphate hydrolases |
Domain Context
CATH Clusters
| Superfamily | P-loop containing nucleotide triphosphate hydrolases |
| Functional Family | ATP-dependent DNA helicase |
Enzyme Information
| 3.6.4.12 |
DNA helicase.
based on mapping to UniProt P56255
ATP + H(2)O = ADP + phosphate.
-!- DNA helicases utilize the energy from ATP hydrolysis to unwind double-stranded DNA. -!- Some of them unwind duplex DNA with a 3' to 5' polarity (1,3,5,8), other show 5' to 3' polarity (10,11,12,13) or unwind DNA in both directions (14,15). -!- Some helicases unwind DNA as well as RNA (4,9). -!- May be identical with EC 3.6.4.13 (RNA helicase).
|
UniProtKB Entries (1)
| P56255 |
PCRA_GEOSE
Geobacillus stearothermophilus
ATP-dependent DNA helicase PcrA
|
PDB Structure
| PDB | 1QHG |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | Escherichia |
| Primary Citation |
DNA binding mediates conformational changes and metal ion coordination in the active site of PcrA helicase.
J.Mol.Biol.
|
