Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 8
pubmed:dateCreated
2006-7-19
pubmed:abstractText
ATP-binding cassette (ABC) proteins transport a wide variety of substrates, including sugars, amino acids, metal ions, lipids, peptides and proteins, across membranes, and most ABC proteins contain transmembrane domains (ABC transporters). Sequencing of the Schizosaccharomyces pombe genome has allowed identification of all genes encoding ABC transporters in fission yeast. To date, six such genes have been characterized, and an additional five genes encoding ABC transporters were identified from the genome sequence. In an attempt to characterize all of the ABC transporters in fission yeast, all 11 genes were disrupted. While all the genes were found to be dispensable for cell viability, some disruptants lacked apparent phenotypes. GFP-tagged ABC transporters were localized to membranes as follows: plasma membrane (2), vacuolar membrane (4), mitochondrial membrane (2), endoplasmic reticulum membrane (2), and endosome and Golgi membranes (1). Two Cluster II. 1 proteins, Abc2p (SPAC3F10.11c) and Abc4p (SPAC30.04c), were found to be localized to vacuolar membranes, and to be responsible for accumulation of a characteristic red pigment in the vacuole of an adenine biosynthetic mutant. The doubly disrupted mutant abc2 Delta abc4 Delta exhibited drug sensitivity, and a decreased accumulation of monochlorobimane, suggesting that both of the proteins encoded by these genes are involved in detoxification of xenobiotics, and vacuolar sequestration of glutathione S-conjugates.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1350-0872
pubmed:author
pubmed:issnType
Print
pubmed:volume
152
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2309-21
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
A survey of all 11 ABC transporters in fission yeast: two novel ABC transporters are required for red pigment accumulation in a Schizosaccharomyces pombe adenine biosynthetic mutant.
pubmed:affiliation
Department of Life Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa 761-0795, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't