Reference: Koll H, et al. (1987) Three nuclear genes suppress a yeast mitochondrial splice defect when present in high copy number. Curr Genet 12(7):503-9

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Abstract

A gene bank of a yeast wild type DNA in the high copy number vector YEp13 was screened for recombinant plasmids which suppress the mitochondrial RNA splice defect exerted by mutant M1301, a -1 bp deletion in the first intron of the mitochondrial COB gene (bI1). A total of 17 recombinant plasmids with similar suppressor activity were found. Restriction mapping and cross-hybridization of the inserts revealed that these 17 plasmids contain three different inserts, all lacking any extended sequence homology. Each of the inserts, when present in high copy number, has a similar suppressor activity: high in the presence of mutation M1301 in bI1, a group II intron, and low but significant with the presence of few mutants in bI2 and bI3 of the COB gene, both of which are group I introns.

Reference Type
Journal Article
Authors
Koll H, Schmidt C, Wiesenberger G, Schmelzer C
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