Q2N and E64G double mutation of ubiquitin confers a stress sensitive phenotype on Saccharomyces cerevisiae.

Abstract excerpt

The eukaryotic protein, ubiquitin harbours a parallel β-bulge in its structure which is formed by residues Glu64(1), Ser65(2) and Gln2(X). Despite their low % frequency of occurrence in parallel β-bulges, the residues Gln2 and Glu64 have been totally conserved in ubiquitin. In a previous study, two single mutants UbQ2N and UbE64G were constructed by replacing the residues Gln2 and Glu64 with Asn and Gly,...

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