Article
Viable nonsense mutants for the essential gene SUP45 of Saccharomyces cerevisiae.
BMC molecular biology - 10 Feb 2003
Moskalenko Svetlana E, Chabelskaya Svetlana V, Inge-Vechtomov Sergei G, Philippe Michel, Zhouravleva Galina A
Abstract excerpt
BACKGROUND: Termination of protein synthesis in eukaryotes involves at least two polypeptide release factors (eRFs) - eRF1 and eRF3. The highly conserved translation termination factor eRF1 in Saccharomyces cerevisiae is encoded by the essential gene SUP45. RESULTS: We have isolated five sup45-n (n from nonsense) mutations that cause nonsense substitutions in the following amino acid positions of eRF1: Y53 -->...
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