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.Základní údaje
Originální název
The yeast APC/C subunit Mnd2 prevents premature sister chromatid separation triggered by the meiosis-specific APC/C-Ama1
Autoři
HAVLIŠ, Jan, Tobias OELSCHLAEGEL, Martin SCHWICKART, Joao MATOS, Aliona BOGDANOVA, Alain CAMASSES, Andrej SHEVCHENKO a Wolfgang ZACHARIAE
Vydání
Cell, United States of America, Cell Press, Cambridge, MA, USA, 2005, 0092-8674
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
Genetika a molekulární biologie
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 29.431
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000228067500008
Klíčová slova anglicky
anaphase-promoting complex; chromosome segregation; fission yeast; centromeric cohesion; spore formation; protein family; kinase cdc5; cleavage; mitosis; proteolysis
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 7. 2009 18:59, doc. Mgr. Jan Havliš, Dr.
Anotace
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.