...antibodies can be isotype-specific or even isotype subclass-specific. This specificity can be used to ensure...Isotype Description Configuration and Valency Subclasses IgA Prevalent antibody in secretions (e.g. tears...should never be stored below 4 °C. Certain isotype subclasses, such as IgG3, aggregate after thawing and therefore...reaction in the presence of several different substrates. The luminescence produced by the reaction can...different species of origin, isotypes, and isotype subclasses of a primary antibody, which becomes the limiting...and block the membrane. Activate the HRP with a substrate kit. Image the membrane using either X-ray film... cytometry requires a negative control, a small subset of the sample with no antibodies. It also requires...