Thermo Fisher Scientific offers bright conjugates of wheat germ agglutinin (WGA) with Alexa Fluor™, Alexa Fluor™ Plus, and other dyes. WGA selectively binds to N‐acetylglucosamine and N‐acetylneuraminic acid (sialic acid) residues. As a result, WGA conjugates can be used to label yeast bud scars and the cell membrane of gram bacteria and mammalian cells. In solution, WGA exists as a heterodimer with a molecular weight of approximately 38,000 Daltons and is normally cationic under physiological conditions. Our WGA conjugates have been used in variety of applications, including immunofluorescence (IF), immunohistochemistry (IHC), and flow cytometry (FC).