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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1993-2-18
pubmed:abstractText
In the yeast Saccharomyces cerevisiae, the enzymes which catalyse the synthesis of ethyl acetate, ethyl n-hexanoate and isoamyl acetate were partly resolved from a fraction containing slowly sedimenting lipoproteins released during cell disruption with glass beads. Solubilization with detergents and fractionation by affinity chromatography have demonstrated the presence of at least three, and probably four, ester synthases which differ in their catalytic properties. Isoamyl-acetate synthase was solubilized and extensively purified to apparent homogeneity by successive chromatographies on various columns. On the basis of its specific activity in cell-free extracts, the enzyme was purified 19,000-fold with a 5% activity yield. As judged by SDS/PAGE, it consists of a single polypeptide chain with a molecular mass of 57 +/- 3 kDa and its apparent pI is 5.5. The enzyme acetylates isoamyl alcohol, ethanol and 12-DL-hydroxystearic acid from acetyl-CoA but is unable to use n-hexanoyl-CoA as a cosubstrate. This enzyme, defined as an acetyl-CoA: O-alcohol acetyltransferase, could be the product of one of the anaerobically induced genes in S. cerevisiae.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0014-2956
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
210
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1015-22
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Short-chain and medium-chain aliphatic-ester synthesis in Saccharomyces cerevisiae.
pubmed:affiliation
Unité de Brasserie et des Industries Alimentaires, Université Catholique de Louvain, Belgium.
pubmed:publicationType
Journal Article