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You are here:Home » Molecular Biology » MB-Cancer Markers » Chk2, active, Recombinant, Human (Checkpoint Kinase 2, Rad 53)

Chk2, active, Recombinant, Human (Checkpoint Kinase 2, Rad 53)


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Chk2 is rapidly phosphorylated and activated in response to replication blocks and DNA damage; the response to DNA damage occurs in an ataxia telangiectasia mutated (ATM)-dependent manner (1). Expression of wild-type Chk2 leads to increased p53 stabilization after DNA damage, whereas expression of a dominant-negative Chk2 mutant abrogated both phosphorylation of p53 on Serine 20 and p53 stabilization (2).
Catalog #C4201-15B
SourceRecombinant full-length human Chk2 was expressed by baculovirus in Sf 9 insect cells using an N-terminal GST tag. The gene accession number is NM_007194.
Molecular MassThe approximate molecular weight is 88kD.
ActivityThe specific activity of Chk2 was determined to be 729 nmol/min/mg using a synthetic peptide substrate (KKKVSRSGLYRSPSMPENLNRPR).
StorageThis product is stable at -70°C for at least 6 months from the date of receipt. For optimal storage, aliquot into smaller quantities after centrifugation and store at recommended temperature. Avoid repeated freeze-thaw cycles.
SourceBaculovirus in Sf9 insect cells
Purity90% by densitometry
FormSupplied as a liquid in 50mM Tris-HCl, pH 7.5, 150mM sodium chloride, 0.25mM DTT, 0.1mM EGTA, 0.1mM EDTA, 0.1mM PMSF, 25% glycerol.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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