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Original Article

Isolation and Molecular Analysis of Umhda2 a Gene Encoding a Histone Deacetylase from Ustilago maydis

, , , &
Pages 44-50 | Received 24 Apr 2003, Published online: 11 Jul 2009
 

Abstract

By use of the polymerase chain reaction and synthetic oligonucleotides designed from conserved regions, we amplified a fragment of a gene from Ustilago maydis encoding a putative histone deacetylase. With this probe we isolated the full gene from a minigenomic library. The gene (designated as Umhda2) contains an open reading frame (ORF) of 1701 bp encoding a protein of 566 amino acids. Multiple comparison analysis with other histone deacetylases suggests that the Umhda2 gene product belongs to the Rpd3-related family of proteins. The highest degree of homology with histone deacetylases from other organisms corresponded to Hda1p of Schizosaccharomyces pombe and Rpd3p of Saccharomyces cerevisiae with 64.2 and 62.2% of sequence similarity, respectively. It displayed a substantially lower similarity with another histone deacetylase from U. maydis (Hda1p, 52.4%). Semi-quantitative RTPCR results indicate that the gene is transcriptionally up-regulated during the in  vitro yeast-to-mycelium dimorphic transition.

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