HeLa CoCl2 treated/Untreated Cell Lysate

Cobalt Chloride (CoCl2) treated cells are often used as a positive control for HIF-1 and HIF-2 alpha analysis in hypoxia signaling experiments. HIFs induction can be conveniently achieved in vitro through CoCl2 treatment of cultured cells. CoCl2 inhibits prolyl-hydroxylases (PHD enzymes), the oxygen sensors, through replacement of Fe with Co making these enzymes unable to mark HIF alpha for degradation. In other words, CoCl2 allosterically blocks PHDs through its metal ion binding domain, hence, abolishing the VHL-HIF interaction which ultimately leads to the accumulation of HIFs in CoCl2 treated cells. CoCl2 has been regarded as one of the most reliable HIF-1 alpha inducer or hypoxia response mimicker, and this chemically induced hypoxia model is widely used in hypoxia-signaling research. Many researcher use Novus antibodies to Hif-1 and Hif-2 in Western blot analysis as markers for Hypoxia. For this reason it is important to have reliable positive controls for your Western blot to ensure that your antibodies and test conditions are optimized. Novus Biologicals is pleased to offer the same positive control cell lysates used to validate antibodies to Hif-1 and Hif-2 to our customers for their research. For Hif-1, we have matched pairs of lysate from HeLa cells treated with and without CoCl2.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Lysates are guaranteed for 6 months from date of receipt.

Array NBP2-36450

• HeLa Lysates