Tags: Chemical Compound, Chemical Substance.
Sialyl LewisX also known as sialyl LeX and SLeX is a tetrasaccharide carbohydrate that is usually attached to O-glycans on the surface of cells. It is known to play a vital role in cell-to-cell recognition processes. It is also the means in which an egg attracts sperm – first to stick to it then bond with it and eventually form a fetus.
