Linked Life Data

12172617

Source:http://linkedlifedata.com/resource/pubmed/id/12172617

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4-5
pubmed:dateCreated
2002-8-12
pubmed:abstractText
Branched-chain alcohols, such as isoamyl alcohol and isobutanol, and isoamyl acetate are important flavor components of yeast-fermented alcoholic beverages. Analysis of a null mutant of the BAT2 gene encoding cytosolic branched-chain amino acid aminotransferase, and a transformant with multi-copy plasmids containing the BAT2 gene showed that the BAT2 gene product plays an important role in the production of branched-chain alcohols and isoamyl acetate. Fermentation tests using the bat2 null mutant transformed with multi-copy plasmids carrying the ATF1 gene, which encodes alcohol acetyltransferase, indicated that modified expression of BAT2 and ATF1 genes could significantly alter the proportion of branched-chain alcohols and isoamyl acetate synthesized. Furthermore, fermentation tests using different ratios of nitrogen source and RNA blot analyses demonstrated that transcription of L-leucine biosynthetic ( LEU) and BAT genes is co-regulated by nitrogen source, that production of isoamyl alcohol depends on this transcription, and that ATF transcription increased with increased concentrations of nitrogen source. Our data suggest that changes in isoamyl alcohol production by nitrogen source are due to transcriptional co-regulation of LEU and BAT genes, and that production of isoamyl acetate is dependent on isoamyl alcohol production and ATF transcription.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0175-7598
pubmed:author
pubmed:issnType
Print
pubmed:volume
59
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
501-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Genetic and physiological analysis of branched-chain alcohols and isoamyl acetate production in Saccharomyces cerevisiae.
pubmed:affiliation
Central Laboratories for Key Technology, Kirin Brewery Co. Ltd., 1-13-5, Fukuura, Kanazawa-ku, Yokohama-shi, Kanagawa 236-0004, Japan. hyoshimoto@kirin.co.jp
pubmed:publicationType
Journal Article