Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-1-22
pubmed:databankReference
pubmed:abstractText
In plants, nucleobase biochemistry is highly compartmented relying upon a well-regulated and selective membrane transport system. In Arabidopsis two proteins, AtAzg1 and AtAzg2, show substantial amino acid sequence similarity to the adenine-guanine-hypoxanthine transporter AzgA of Aspergillus nidulans. Analysis of single and double mutant lines harboring T-DNA insertion alleles AtAzg1-1 and AtAzg2-1 reveal a marked resistance to growth in the presence of 8-azaadenine and 8-azaguanine but not to other toxic nucleobase analogues. Conversely, yeast strains expressing AtAzg1 and AtAzg2 gain heightened sensitivity to growth on 8-azaadenine and 8-azaguanine. Radio-labeled purine uptake experiments in yeast and in planta confirm the function of AtAzg1 and AtAzg2 as plant adenine-guanine transporters.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1873-3468
pubmed:author
pubmed:issnType
Electronic
pubmed:day
22
pubmed:volume
583
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
481-6
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
AtAzg1 and AtAzg2 comprise a novel family of purine transporters in Arabidopsis.
pubmed:affiliation
Department of Biology, Indiana University-Purdue University Fort Wayne, Fort Wayne, IN 46805, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't