This Isotype Control May Need Its Own Control

Biological Sciences
University of Idaho
Graduate student

Overall

Quality of Results

Ease-of-Optimization

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Company:

eBioscience

Product Name:

Rat IgG2b K Isotype Control PerCP-Cyanine5.5

Catalog Number:

45-4031

I am analyzing immune cell populations in the murine lung and how they change following viral infection. I needed an isotype control for each antibody in my panel and I chose this product because it was recommended from the company as the isotype control for my CD11b antibody.

Experimental Design and Results Summary

Applications

Flow Cytometry

Sample

Murine lungs

Primary Incubation

0.25 ug/10^6 cells, 20 minutes on ice

Blocking Agent

Anti-mouse CD16/32

Secondary Incubation

No secondary

Tertiary Incubation

No tertiary

Detection

Flow cytometer

Results Summary

I was expecting a well separated population for my CD11b+ cells and its respective isotype control to show very minimal to no binding. But this isotype showed a high level of background that was not present when I used other antibody isotypes. It made it more difficult to work with my samples and I had to purchase new antibodies.

Additional Notes

None

Image Gallery

Summary

The Good

Easy to use.

The Bad

Very high background.

The Bottom Line

I was not happy with this product and had to purchase new antiobodies. I would be hesitant getting an isotype control here again.

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