A site-directed approach for constructing temperature-sensitive ubiquitin-conjugating enzymes reveals a cell cycle function and growth function for RAD6.

Abstract excerpt

We have determined the gene sequence of a temperature-sensitive allele of the cell cycle-related ubiquitin-conjugating enzyme CDC34 (UBC 3) from Saccharomyces cerevisiae. The basis of temperature sensitivity is a missense mutation resulting in a proline to serine substitution at a residue that is conserved in all ubiquitin-conjugating enzymes identified thus far. This observation raised the possibility that other...

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