|Title||A molecular barcoded yeast ORF library enables mode-of-action analysis of bioactive compounds.|
|Publication Type||Journal Article|
|Year of Publication||2009|
|Authors||Ho, CHei, Magtanong, L, Barker, SL, Gresham, D, Nishimura, S, Natarajan, P, L Y Koh, J, Porter, J, Gray, CA, Andersen, RJ, Giaever, G, Nislow, C, Andrews, B, Botstein, D, Graham, TR, Yoshida, M, Boone, C|
|Date Published||2009 Apr|
|Keywords||Cloning, Molecular, Gene Library, Genetic Engineering, Open Reading Frames|
We present a yeast chemical-genomics approach designed to identify genes that when mutated confer drug resistance, thereby providing insight about the modes of action of compounds. We developed a molecular barcoded yeast open reading frame (MoBY-ORF) library in which each gene, controlled by its native promoter and terminator, is cloned into a centromere-based vector along with two unique oligonucleotide barcodes. The MoBY-ORF resource has numerous genetic and chemical-genetic applications, but here we focus on cloning wild-type versions of mutant drug-resistance genes using a complementation strategy and on simultaneously assaying the fitness of all transformants with barcode microarrays. The complementation cloning was validated by mutation detection using whole-genome yeast tiling microarrays, which identified unique polymorphisms associated with a drug-resistant mutant. We used the MoBY-ORF library to identify the genetic basis of several drug-resistant mutants and in this analysis discovered a new class of sterol-binding compounds.
|Alternate Journal||Nat. Biotechnol.|