CATH Domain 4cgzA02

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	Bloom syndrome, RecQ helicase

Enzyme Information

3.6.4.12

DNA helicase.

based on mapping to UniProt P54132

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)

P54132

BLM_HUMAN

Homo sapiens

Bloom syndrome protein

PDB Structure

PDB	4CGZ
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism
Primary Citation	Crystal Structure of the Bloom'S Syndrome Helicase Indicates a Role for the Hrdc Domain in Conformational Changes. Newman, J.A., Savitsky, P., Allerston, C.K., Bizard, A.H., Ozer, O., Sarlos, K., Liu, Y., Pardon, E., Steyaert, J., Hickson, I.D., Gileadi, O. Nucleic Acids Res.