The Alexa Fluor 633 donkey anti—goat IgG is labeled with our
bright, far-red—fluorescent Alexa Fluor 633 dye and is prepared
from affinity-purified antibodies that react with IgG heavy
chains and all classes of immunoglobulin light chains from goat.
To minimize crossreactivity, it has been adsorbed against
rabbit, rat, mouse and human IgG. Fluorescence of this long-
wavelength Alexa Fluor dye is not visible to the human eye but
is readily detected by most imaging systems.