SensiStain™ Anti-p63 Antibody is developed and designed to detect for the presence of p63. p63 is a tumor suppressor protein, which is very similar to p53 in structure and function, while being homologous to p73. p63 is important the process of development and differentiation, and has been identified as a useful marker for distinguishing between lung squamous cell carcinomas and adenocarcinomas.