Detailed Information on Publication Record
2005
The yeast APC/C subunit Mnd2 prevents premature sister chromatid separation triggered by the meiosis-specific APC/C-Ama1
HAVLIŠ, Jan, Tobias OELSCHLAEGEL, Martin SCHWICKART, Joao MATOS, Aliona BOGDANOVA et. al.Basic information
Original name
The yeast APC/C subunit Mnd2 prevents premature sister chromatid separation triggered by the meiosis-specific APC/C-Ama1
Authors
HAVLIŠ, Jan, Tobias OELSCHLAEGEL, Martin SCHWICKART, Joao MATOS, Aliona BOGDANOVA, Alain CAMASSES, Andrej SHEVCHENKO and Wolfgang ZACHARIAE
Edition
Cell, United States of America, Cell Press, Cambridge, MA, USA, 2005, 0092-8674
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
Genetics and molecular biology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 29.431
Organization unit
Faculty of Science
UT WoS
000228067500008
Keywords in English
anaphase-promoting complex; chromosome segregation; fission yeast; centromeric cohesion; spore formation; protein family; kinase cdc5; cleavage; mitosis; proteolysis
Tags
Tags
International impact, Reviewed
Změněno: 2/7/2009 18:59, doc. Mgr. Jan Havliš, Dr.
Abstract
V originále
Cohesion established between sister chromatids during pre-meiotic DNA replication mediates two rounds of chromosome segregation. The first division is preceded by an extended prophase wherein homologous chromosomes undergo recombination. The persistence of cohesion during prophase is essential for recombination and both meiotic divisions. Here we show that Mnd2, a subunit of the anaphase-promoting complex (APC/C) from budding yeast, is essential to prevent premature destruction of cohesion in meiosis. During S- and prophase, Mnd2 prevents activation of the APC/C by a melosis-specific activator called Ama1. In cells lacking Mnd2 the APC/C-Ama1 enzyme triggers degradation of Pds1, which causes premature sister chromatid separation due to unrestrained separase activity. In vitro, Mnd2 inhibits ubiquitination of Pds1 by APC/C-Ama1 but not by other APC/C holo-enzymes. We conclude that chromosome segregation in meiosis depends on the selective inhibition of a meiosis-specific form of the APC/C.