Absolute Lectins

Absolute Lectins, perfect for Glycoscience

Medicago is a primary manufacturer of a wide variety of exceptionally pure lectins purified by affinity chromatography. Lectins are non-enzymatic proteins of non-immunoglobulin origin that bind specifically and reversibly to carbohydrate moieties without altering the covalent structure of the glycosyl ligands.

The term ‘lectin’ is derived from the latin word legere, meaning ‘to select’. The specificity of a lectin is usually defined by the monosaccharides or oligosaccharides that are best at inhibiting the agglutination or precipitation caused by the lectin. Lectins are usually of plant origin but do occur in many types of organism; some are glycoproteins and may be soluble or membrane-bound.

The biological function of lectins is far from fully explored. Their specificity enables binding to glycoproteins and polysaccharides as well as agglutination of erythrocytes and stimulation of blood lymphocytes. Because of their ability to distinguish glycosyl ligands on human red blood cells, lectins can be used for blood typing.Immobilized lectins can be used in affinity chromatography to purify and isolate glycoproteins, glycolipids, polysaccharides, viruses and cells. Carbohydrate-containing substances bound to the lectin may be eluted with a competitive binding substance.

Medicago offers lectins as a freeze-dried powder or as a solution manufactured under aseptic conditions. If you don’t find the lectin you are looking for, we can certainly produce it for you. Furthermore, we offer different custom lectin conjugates on request. To read more about our lectins, click here


  • Ultrapure quality
  • High activity
  • Wide range
  • Lyophilized powder
  • Custom lectins and conjugates

how do I change the colour does not seem to be long



Application table Click to enlarge