Cytokinesis: GAGs form the walls that separate our parts.

Cytokinesis, the final step of cell division, involves the formation of membranous barriers that partition cytosol and organelles between the resultant daughter cells. Recent studies reveal a crucial role for the extracellular glycosaminoglycan chondroitin in the completion of the cleavage furrow in dividing Caenorhabditis elegans embryos.