almost 60% of the potential open reading frames of the genome had no experimentally
determined function. Using a conserved sequence motif present in the zinc-containing
medium-chain alcohol dehydrogenases, we found several potential alcohol dehydrogenase
genes with no defined function. One of these, YAL060W, was overexpressed using a
multicopy inducible vector, and its protein product was purified to homogeneity. The enzyme …