title: Sequence rearrangements at the ori 7 region of Saccharomyces cerevisiae mitochondrial DNA.
abstract: Three ori elements (ori 2, ori 5, and ori 7) have been sequenced in Saccharomyces cerevisiae strain Dip 2 and compared to the equivalent ori elements of a second strain (B). Both ori 2 and ori 5 exhibit 98% base matching between strains Dip 2 and B. In contrast, the third ori element (ori 7) exhibits extensive sequence rearrangements whereby a segment located downstream in the consensus strain occurs within the ori structure in Dip 2. This represents a novel polymorphic form of the yeast mitochondrial genome.
authors.forename: P J
authors.initials: PJ
authors.lastname: Skelly
authors.forename: G D
authors.initials: GD
authors.lastname: Clark-Walker
mesh_terms: D001483:Base Sequence; D004247:DNA; D004261:DNA Replication; D004271:DNA, Fungal / Q000096:biosynthesis / Q000235:genetics; D004272:DNA, Mitochondrial / Q000096:biosynthesis / Q000235:genetics*; D004171:Diploidy; D008969:Molecular Sequence Data; D011995:Recombination, Genetic; D015183:Restriction Mapping; D012441:Saccharomyces cerevisiae / Q000235:genetics*; D013045:Species Specificity
chemical_list: D004271:DNA, Fungal; D004272:DNA, Mitochondrial; D004247:DNA