CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
|   | 3 | Alpha Beta | 
|   | 3.30 | 2-Layer Sandwich | 
|   | 3.30.56 | Phenylalanyl-tRNA Synthetase; Chain B, domain 1 | 
|   | 3.30.56.120 | 
Domain Context
CATH Clusters
| Superfamily | 3.30.56.120 | 
| Functional Family | 
Enzyme Information
| 3.6.4.12 | DNA helicase. based on mapping to UniProt O29238 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). | 
| 5.6.2.3 | DNA topoisomerase (ATP-hydrolyzing). based on mapping to UniProt O29238 ATP-dependent breakage, passage and rejoining of double-stranded DNA. -!- The enzyme can introduce negative superhelical turns into double- stranded circular DNA. -!- One unit has nicking-closing activity, and another catalyzes super- twisting and hydrolysis of ATP (cf. EC 5.6.2.2). -!- Formerly EC 5.99.1.3. | 
UniProtKB Entries (1)
| O29238 | RGYR_ARCFU Archaeoglobus fulgidus DSM 4304 Reverse gyrase | 
PDB Structure
| PDB | 1GL9 | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | Crystal Structure of Reverse Gyrase: Insights Into the Positive Supercoiling of DNA. Embo J. | 
