Abstract
Saccharomyces cerevisiae Hop2 and Mnd1 are abundant meiosis-specific chromosomal proteins, and mutations in the corresponding genes lead to defects in meiotic recombination and in homologous chromosome interactions during mid-prophase. Analysis of various double mutants suggests that HOP2, MND1, and DMC1 act in the same genetic pathway for the establishment of close juxtaposition between homologous meiotic chromosomes. Biochemical studies indicate that Hop2 and Mnd1 proteins form a stable heterodimer with a higher affinity for double-stranded than single-stranded DNA, and that this heterodimer stimulates the strand assimilation activity of Dmc1 in vitro. Together, the genetic and biochemical results suggest that Hop2, Mnd1, and Dmc1 are functionally interdependent during meiotic DNA recombination.
Original language | English |
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Pages (from-to) | 10572-10577 |
Number of pages | 6 |
Journal | Proceedings of the National Academy of Sciences of the United States of America |
Volume | 101 |
Issue number | 29 |
DOIs | |
Publication status | Published - Jul 20 2004 |
Externally published | Yes |
ASJC Scopus subject areas
- General