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Does the Human IL-22 Recombinant Protein #74808 contain any human or animal material and is it free of HIV/AIDS, HCV/HBC or other infectious material?

No materials of animal origin are used in the production of our Human IL-22 Recombinant Protein #74808. Therefore, additional testing for infectious material is not relevant.

Can I use your Protein A Agarose Beads #9863 and Protein G Agarose Beads #37478 if they have been frozen?

Although we are unable to guarantee that both our Protein A Agarose Beads #9863 and Protein G Agarose Beads #37478 will work after being stored at -20C, we have used beads that have been frozen and th...

Can I use mixed species samples for a PTMScan® experiment?

The PTMScan® technology is compatible with samples derived from all kingdoms of life as well as samples containing mixed species like xenografts (mouse and human), microbiome samples (bacterial and ho...

Can I reuse PTMScan® antibody beads?

The “classic” PTMScan® kits that use agarose beads and the PTMScan HS kits that use magnetic beads are both designed for a single PTM peptide enrichment. The nature of the acidic elution step, which l...

How are the SignalStar™ Multiplex IHC Kits & Reagents validated?

CST thoroughly validates each antibody available in the

Can I store the unopened, lyophilized PTMScan® LysC Protease #84748 at -80°C instead of -20°C?

Yes, the lyophilized PTMScan® LysC Protease #84748 may be stored at -80°C. However, we do not recommend storing the LysC powder in a frost-free freezer or a freezer that undergoes freeze-thaw cycles. ...

Which total Akt antibody do you suggest for immunofluorescent immunocytochemistry (IF-IC) with human samples?

We have several antibodies for detecting total Akt protein that are validated for IF-IC with human samples. These are as follows: