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 helicase/nuclease subunit A |
Enzyme Information
| 3.1.-.- |
Acting on ester bonds.
based on mapping to UniProt P23478
|
| 3.6.4.12 |
DNA helicase.
based on mapping to UniProt P23478
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)
| P23477 |
ADDB_BACSU
Bacillus subtilis subsp. subtilis str. 168
ATP-dependent helicase/deoxyribonuclease subunit B
|
PDB Structure
| PDB | 3U44 |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Insights into Chi recognition from the structure of an AddAB-type helicase-nuclease complex.
Embo J.
|
