Date: 09 Aug 2007
ZMM proteins during meiosis: Crossover artists at work
Faithful segregation of homologous chromosomes (homologs) during meiosis depends on chiasmata which correspond to crossovers between parental DNA strands. Crossover forming homologous recombination takes place in the context of the synaptonemal complex (SC), a proteinaceous structure that juxtaposes homologs. The coordination between molecular recombination events and assembly of the SC as a structure that provides global connectivity between homologs represents one of the remarkable features of meiosis. ZMM proteins (also known as the synapsis initiation complex = SIC) play crucial roles in both processes providing a link between recombination and SC assembly. The ZMM group includes at least seven functionally collaborating, yet structurally diverse proteins: The transverse filament protein Zip1 establishes stable homolog juxtaposition by polymerizing as an integral component of the SC. Zip2, Zip3, and Zip4 likely mediate protein–protein interactions, while Mer3, Msh4, and Msh5 directly promote steps in DNA recombination. This review focuses on recent insights into ZMM functions in yeast meiosis and draws comparisons to ZMM-related proteins in other model organisms.
de los Santos T, Hunter N, Lee C, Larkin B, Loidl J, Hollingsworth NM (2003) The Mus81/Mms4 endonuclease acts independently of double-Holliday junction resolution to promote a distinct subset of crossovers during meiosis in budding yeast. Genetics 164: 81–94.PubMed
de Vries SS, Baart EB, Dekker M, Siezen A, de Rooij DG, de Boer P, te Riele H (1999) Mouse MutS-like protein Msh5 is required for proper chromosome synapsis in male and female meiosis. Genes Dev 13: 523–531.PubMed
Kelly KO, Dernburg AF, Stanfield GM, Villeneuve AM (2000) Caenorhabditis elegans msh-5 is required for both normal and radiation-induced meiotic crossing over but not for completion of meiosis. Genetics 156: 617–630.PubMed
Kneitz B, Cohen PE, Avdievich E, et al. (2000) MutS homolog 4 localization to meiotic chromosomes is required for chromosome pairing during meiosis in male and female mice. Genes Dev 14: 1085–1097.PubMed
Marcon E, Moens P (2003) MLH1p and MLH3p localize to precociously induced chiasmata of okadaic-acid-treated mouse spermatocytes. Genetics 165: 2283–2287.PubMed
Moens PB, Kolas NK, Tarsounas M, Marcon E, Cohen PE, Spyropoulos B (2002) The time course and chromosomal localization of recombination-related proteins at meiosis in the mouse are compatible with models that can resolve the early DNA–DNA interactions without reciprocal recombination. J Cell Sci 15: 1611–1622.
Novak JE, Ross-Macdonald PB, Roeder GS (2001) The budding yeast Msh4 protein functions in chromosome synapsis and the regulation of crossover distribution. Genetics 158: 1013–1025.PubMed
Tanaka K, Miyamoto N, Shouguchi-Miyata J, Ikeda JE (2006) HFM1, the human homologue of yeast Mer3, encodes a putative DNA helicase expressed specifically in germ-line cells. DNA Seq 17: 226–242.
Zalevsky J, MacQueen AJ, Duffy JB, Kemphues KJ, Villeneuve AM (1999) Crossing over during Caenorhabditis elegans meiosis requires a conserved MutS-based pathway that is partially dispensable in budding yeast. Genetics 153: 1271–1283.PubMed
- ZMM proteins during meiosis: Crossover artists at work
Volume 15, Issue 5 , pp 591-605
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- double Holliday junctions
- stable strand invasion
- ZMM proteins
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