Localization of the Tp53 gene on Syrian hamster chromosome 9 by fluorescence in situ hybridization.

Mutations of the Tp53 tumor suppressor gene have been detected in 50% of all human cancers. The normal Tp53 gene product acts as a negative regulator of cell division or is associated with abnormal growth in certain differentiated cell types. The Tp53 gene was mapped by FISH to Syrian hamster chromosome 9 bands qb2.2-->2.3 using a genomic DNA probe with a high degree of sequence identity to the human Tp53 gene.