Abstract:
:We have expressed wild-type and human tumour-derived mutant p53 cDNA genes in the fission yeast Schizosaccharomyces pombe. In the case of one mutant this resulted in a growth arrest of recipient yeast cells. In contrast, wild-type p53 and three other mutant proteins tested did not block outgrowth of colonies. Human and yeast cdc2 acted as functionally equivalent extragenic suppressors of the mutant-induced growth arrest allowing the establishment of viable p53 expressor strains. In cotransformation assays the mutant allele was found to be dominant over wt p53. Our results provide the first evidence of a functional relationship between p53 and p34cdc2 in an in-vivo system and suggest that the wide variety of mutant proteins present in human tumours may fall into functionally distinct subclasses.
journal_name
Oncogenejournal_title
Oncogeneauthors
Wagner P,Simanis V,Maimets T,Keenan E,Addison C,Brain R,Grimaldi M,Sturzbecher HW,Jenkins Jsubject
Has Abstractpub_date
1991-09-01 00:00:00pages
1539-47issue
9eissn
0950-9232issn
1476-5594journal_volume
6pub_type
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