Certain features of will be down for maintenance Saturday afternoon/evening, February 24th starting at 3:00 pm CT until 9:00 pm CT.

Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.


Technical Information on Lectins including sugar specificity, blood group specificity, mitogenic activity, molecular weight and more.
Lectins are proteins or glycoproteins from non-immune origins that agglutinate cells and/or precipitate complex carbohydrates. Lectins are isolated from a wide variety of natural sources, both plant and animal. Recombinant human and rat galectins are expessed in Escherichia coli. The agglutination activity of these highly specific carbohydrate-binding molecules is usually inhibited by a simple monosaccharide, but for some lectins di-, tri-, and even polysaccharides are required. Sigma offers a wide range of lectins suitable for the following applications:

  • Carbohydrate studies
  • Fractionation of cells and other particles
  • Lymphocyte subpopulation studies
  • Mitogenic stimulation
  • Blood group typing
  • Histochemical studies
For more information on Glycobiology browse our online Glycobiology Analysis Manual.