The   p53  tumor  suppressor  gene
   encodes  a  transcription  factor that regulates transcription of more
   than 50 different genes involved in the cell cycle.
<P>
   <A ClAsS=WWW Href="http://www.hhmi.org/biointeractive/media/using_p53-sm.wmv" oNClick="popurlt('http://www.hhmi.org/biointeractive/media/using_p53-sm.wmv');txtcolor('p53_1','gray');return false;" Id=p53_1 ClAsS=WWW>p53 and Adenovirus</A>