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ATP-dependent DNA helicase RecQ, Active

Recombinant full-length E. coli ATP-dependent DNA helicase RecQ was expressed in E. coli using C-terminal His-tag.


50 ug 100 ug 200 ug 500 ug

$ 180


RecQ helicases catalyze double-stranded DNA unwinding in the 3’ to 5’ direction, which is driven by ATPase activity that is dependent on a bivalent cation (1). RecQ helicases are important in coordinating genome maintenance and preserving genomic integrity in prokaryotes and eukaryotes (2). E. coli RecQ plays an important role in resuming DNA replication at stalled replication forks after repairing UV-induced DNA damage (3). They are also important in preventing future chromosomal abnormalities that result from DNA damage (3).

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Recombinant protein stored in 50mM sodium phosphate, pH 8.0, 300mM NaCl, 150mM imidazole, 1 mM DTT, 10% glycerol.


1. Sharma, S. et al: Mechanisms of RecQ helicases in pathways of DNA metabolism and maintenance of genomic stability. Biochem J, 2006; 398(3): 319-337. 2. Bennet, R. J., Keck, J. L.: Structure and function of RecQ DNA helicases. Crit Rev Biochem Mol Biol., 2004; 39(2): 79-97. 3. Hishida, T. et al: Role of the Escherichia coli RecQ DNA helicase in SOS signaling and genome stabilization at stalled replication forks. Genes Dev., 2004; 18(15): 1886-1897.

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