iASPP oncoprotein is a key inhibitor of p53 conserved from worm to human.

Bergamaschi D., Samuels Y., O'Neil N. J., Trigiante G., Crook T., Hsieh J. K., O'Connor D. J., Zhong S., Campargue I., Tomlinson M. L., Kuwabara P. E., Lu X.. (2003)

Nature Genetics, 33, 162-7

Nature Genetics, 33, 162-7