['Histone acetyltransferase enzymes (HATs) are implicated in regulation of transcription. HATs from different families may overlap in target and substrate specificity.', 'We isolated the elp3+ gene encoding the histone acetyltransferase subunit of the Elongator complex in fission yeast and characterized the phenotype of an Deltaelp3 mutant. We examined genetic interactions between Deltaelp3 and two other HAT mutants, Deltamst2 and Deltagcn5 and used whole genome microarray analysis to analyze their effects on gene expression.'] Does expression profiling of S. pombe acetyltransferase mutants identify redundant pathways of gene regulation?