title: Extrachromosomal psi+ determinant suppresses nonsense mutations in yeast.
abstract: The extrachromosomal psi+ determinant in the yeast Saccharomyces cerevisiae enhanced the expression of Mendelian UAA suppressors by 6- to 10-fold. The psi+ determinant by itself is a weak UAA suppressor that caused the production of approximately 1% of the normal level of iso-1-cytochrome c in a strain containing the UAA mutation cycl-72.
mesh_terms: D003574:Cytochrome c Group / Q000032:analysis; D005111:Extrachromosomal Inheritance; D009154:Mutation; D012441:Saccharomyces cerevisiae / Q000235:genetics*; D013045:Species Specificity; D013053:Spectrophotometry; D013489:Suppression, Genetic
chemical_list: D003574:Cytochrome c Group