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Wheat Germ Agglutinin (WGA), Fluorescein, 10 mg. The receptor sugar for WGA is N-acetylglucosamine, with preferential binding to dimers and trimers of this sugar. WGA can bind oligosaccharides containing terminal N-acetylglucosamine or chitobiose, structures common to many serum and membrane glycoproteins. Bacterial cell wall peptidoglycans, chitin, cartilage glycosaminoglycans, and glycolipids can also bind WGA. Native WGA has also been reported to interact with some glycoproteins via sialic acid residues (see succinylated WGA). Fluorescein-labeled WGA has an appropriate number of fluorochromes bound to provide the optimum staining characteristics for this lectin. This conjugate is supplied essentially free of unconjugated fluorochromes. The excitation maximum is at 495 nm, and the emission maximum is at 515 nm. The recommended concentration range for use is 5–20 µg/ml.
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Vector Laboratories
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Vector Laboratories
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Vector Laboratories
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Vector Laboratories
