A ubiquitin-conjugating enzyme, RAD6, affects the distribution of Ty1 retrotransposon integration positions.
A galactose-inducible Ty1 element was used to generate 59 independent Ty1 inserts that inactivate the CAN1 gene. As found in previous studies, the distribution of these elements shows a gradient of insertion frequency from highest to lowest between the 5' and 3' ends of the gene. However, 53 independent Ty1 and Ty2 insertions isolated by an identical procedure in an isogenic rad6 deletion strain do not show this bias. In this strain, the Ty elements insert randomly throughout CAN1. These results show that the ubiquitin-conjugating enzyme, RAD6, alters the integration site preferences of Ty1 retrotransposons.
Department of Biological Sciences, University of Illinois, Chicago 60680.
S W
SW
Liebman
G
G
Newnam
D000483:Alleles; D001483:Base Sequence; D004251:DNA Transposable Elements / Q000235:genetics*; D004271:DNA, Fungal / Q000235:genetics; D005656:Fungal Proteins / Q000235:genetics; D015321:Gene Rearrangement; D005800:Genes, Fungal; D008025:Ligases / Q000235:genetics*; D008969:Molecular Sequence Data; D009154:Mutation; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D015183:Restriction Mapping; D012441:Saccharomyces cerevisiae / Q000235:genetics / Q000378:metabolism; D029701:Saccharomyces cerevisiae Proteins; D044763:Ubiquitin-Conjugating Enzymes
D004251:DNA Transposable Elements; D004271:DNA, Fungal; D005656:Fungal Proteins; D012333:RNA, Messenger; D029701:Saccharomyces cerevisiae Proteins; C471606:RAD6 protein, S cerevisiae; D044763:Ubiquitin-Conjugating Enzymes; D008025:Ligases