CATH Classification

Domain Context

CATH Clusters

Superfamily 2.30.30.780
Functional Family

Enzyme Information

3.6.4.12
DNA helicase.
based on mapping to UniProt P32270
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)

P32270
DDA_BPT4
Escherichia virus T4
ATP-dependent DNA helicase dda

PDB Structure

PDB 3UPU
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
The T4 Phage SF1B Helicase Dda Is Structurally Optimized to Perform DNA Strand Separation.
He, X., Byrd, A.K., Yun, M.K., Pemble, C.W., Harrison, D., Yeruva, L., Dahl, C., Kreuzer, K.N., Raney, K.D., White, S.W.
Structure