Linked Life Data

10092594

Source:http://linkedlifedata.com/resource/pubmed/id/10092594

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
1999-4-27
pubmed:databankReference
pubmed:abstractText
A computer-based screen of the Saccharomyces cerevisiae genome identified YJR019C as a candidate oleate-induced gene. YJR019C mRNA levels were increased significantly during growth on fatty acids, suggesting that it may play a role in fatty acid metabolism. The YJR019C product is highly similar to tesB, a bacterial acyl-CoA thioesterase, and carries a tripeptide sequence, alanine-lysine-phenylalanineCOOH, that closely resembles the consensus sequence for type-1 peroxisomal targeting signals. YJR019C directed green fluorescence protein to peroxisomes, and biochemical studies revealed that YJR019C is an abundant component of purified yeast peroxisomes. Disruption of the YJR019C gene caused a significant decrease in total cellular thioesterase activity, and recombinant YJR019C was found to exhibit intrinsic acyl-CoA thioesterase activity of 6 units/mg. YJR019C also shared significant sequence similarity with hTE, a human thioesterase that was previously identified because of its interaction with human immunodeficiency virus-Nef in the yeast two-hybrid assay. We report here that hTE is also a peroxisomal protein, demonstrating that thioesterase activity is a conserved feature of peroxisomes. We propose that YJR019C and hTE be renamed as yeast and human PTE1 to reflect the fact that they encode peroxisomal thioesterases. The physical segregation of yeast and human PTE1 from the cytosolic fatty acid synthase suggests that these enzymes are unlikely to play a role in formation of fatty acids. Instead, the observation that PTE1 contributes to growth on fatty acids implicates this thioesterase in fatty acid oxidation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
2
pubmed:volume
274
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
9216-23
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:10092594-Amino Acid Sequence, pubmed-meshheading:10092594-Base Sequence, pubmed-meshheading:10092594-Consensus Sequence, pubmed-meshheading:10092594-DNA, Fungal, pubmed-meshheading:10092594-Fluorescent Antibody Technique, Indirect, pubmed-meshheading:10092594-Gene Expression Regulation, Enzymologic, pubmed-meshheading:10092594-Green Fluorescent Proteins, pubmed-meshheading:10092594-Humans, pubmed-meshheading:10092594-Luminescent Proteins, pubmed-meshheading:10092594-Microbodies, pubmed-meshheading:10092594-Microscopy, Fluorescence, pubmed-meshheading:10092594-Molecular Sequence Data, pubmed-meshheading:10092594-Oleic Acid, pubmed-meshheading:10092594-Open Reading Frames, pubmed-meshheading:10092594-Palmitoyl-CoA Hydrolase, pubmed-meshheading:10092594-RNA, Messenger, pubmed-meshheading:10092594-Saccharomyces cerevisiae, pubmed-meshheading:10092594-Sequence Alignment, pubmed-meshheading:10092594-Thiolester Hydrolases
pubmed:year
1999
pubmed:articleTitle
Identification of peroxisomal acyl-CoA thioesterases in yeast and humans.
pubmed:affiliation
Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.