Linked Life Data

1744117

Source:http://linkedlifedata.com/resource/pubmed/id/1744117

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
34
pubmed:dateCreated
1992-1-13
pubmed:abstractText
The gene encoding Candida tropicalis peroxisomal trifunctional enzyme, hydratase-dehydrogenase-epimerase (HDE), was expressed in both Candida albicans and Saccharomyces cerevisiae. The cellular location of HDE was determined by subcellular fractionation followed by Western blot analysis of peroxisomal and cytosolic fractions using antiserum specific for HDE. HDE was found to be exclusively targeted to and imported into peroxisomes in both heterologous expression systems. Deletion and mutational analyses were used to determine the regions within HDE which are essential for its targeting to peroxisomes. Deletion of a carboxyl-terminal tripeptide Ala-Lys-Ile completely abolished targeting of HDE to peroxisomes, whereas large internal deletions of HDE (amino acids 38-353 or 395-731) had no effect on HDE targeting to peroxisomes in either yeast. This tripeptide is similar to, but distinct from, other tripeptide peroxisomal targeting sequences (PTSs) as identified in peroxisomal firefly luciferase and four mammalian peroxisomal proteins. Substitutions within the carboxyl-terminal tripeptide (Ala----Gly and Lys----Gln) supported targeting of HDE to peroxisomes of C. albicans but not of S. cerevisiae. This is the first detailed analysis of the peroxisomal targeting signal in a yeast peroxisomal protein.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
266
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
23197-203
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
The carboxyl-terminal tripeptide Ala-Lys-Ile is essential for targeting Candida tropicalis trifunctional enzyme to yeast peroxisomes.
pubmed:affiliation
Department of Biochemistry, McMaster University, Hamilton, Ontario, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't