Journal Current Biology recently published a study by the researchers of Biozentrum of the University of Basel. They proposed that an amino acid signal is necessary for fault free cell division. This amino acid signal is used to regulate the number of centrosomes in the cell, and their absence results in the development of pathologically altered cells. The centrosome which is a tiny cell organelle plays a decisive role in cell division process. The Ken-Box is the signal that orders the protein degradation machinery to break down the STIL protein, which degrades during cell division. Microcephaly is a cell division disorder and this new study may help in knowing the origin of the disorder.