[PSI(+)] aggregate enlargement in rnq1 nonprion domain mutants, leading to a loss of prion in yeast.

Abstract excerpt

[PIN(+)] is the prion form of the Rnq1 protein of unknown function in Saccharomyces cerevisiae. A glutamine/asparagine (Q/N)-rich C-terminal domain is necessary for the propagation of [PIN(+)], whereas the N-terminal region is non-Q/N-rich and considered the nonprion domain. Here, we isolated numerous single-amino-acid mutations in Rnq1, phenotypically similar to Rnq1Δ100, which inhibit [PSI(+)] propagation in...

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