The structure and evolution of subtelomeric Y' repeats in Saccharomyces cerevisiae

Article Abstract:

The Y' element is a highly conserved repeat sequence found at some but not all chromosome ends. The function and origin of this repeat sequence is as yet, unknown. To help elucidate these questions, eight Y's from two strains of Saccharomyces cerevisiae were cloned and sequenced. The results showed that the Y' sequence consists of two overlapping open reading frames with no homologies to other known protein sequences, except for the RNA helicases. Further analyses revealed that the Y' elements probably arose from mobile elements, but now translocate via recombination mechanisms.

Analysis, Telomeres, Evolution (Biology), Microorganisms, Transposons

---

Site-specific recombination determined by I-SceI, a mitochondrial group I inton-encoded endonuclease expressed in the yeast nucleus

Article Abstract:

The Saccharomyces cerevisiae mitochondrial endonuclease I-SceI is responsible for intron mobility in the mitochondria of yeast. The I-SceI gene was synthesized and expressed in the nucleus. The gene functioned efficiently to catalyze recombination in a manner similar to that initiated by the HO endonuclease gene. However, proteins encoded by these two genes are not related.

Mitochondrial DNA, Introns

---

Mcm1 regulates donor preference controlled by the recombination enhancer in Saccharomyces mating-type switching

Article Abstract:

Mutation in the Mcm1 binding site affects the repression of RE activity in MATa cells indicating the importance of Mcm1. It is a cell binding between Matx2 and Mcm1 that affects RE activity. By affecting the recombination enhancer it also controls the choice of a donor, HML or HMR, in either mating types.

Similar abstracts:

• Abstracts: Instability of a plasmid-borne inverted repeat in Saccharomyces cerevisiae. Analysis of a gene conversion gradient at the HIS4 locus in Saccharomyces cerevisiae
• Abstracts: Evidence that Spt4, Spt5, and Spt6 control transcription elongation by RNA polymerase II in Saccharomyces cerevisiae
• Abstracts: High resolution mapping of genetic factors affecting abdominal bristle number in Drosophila melanogaster. Patterns of naturally occurring restriction map variation, dopa decarboxylase activity variation and linkage disequilibrium in the DdC gene region of Drosophila melanogaster
• Abstracts: Phenotypic and molecular characterization of SerD, a dominant allele of the Drosophila gene Serrate. The enhancer of split complex and adjacent genes in the 96F region of Drosophila melanogaster are required for segregation of neural and epidermal progenitor cells
• Abstracts: Empirical tests of some predictions from coalescent theory with applications to intraspecific phylogeny reconstruction

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.