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2008 ; 24
(ä): 475-99
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Regulation of APC/C activators in mitosis and meiosis
#MMPMID18598214
Pesin JA
; Orr-Weaver TL
Annu Rev Cell Dev Biol
2008[]; 24
(ä): 475-99
PMID18598214
show ga
The anaphase-promoting complex/cyclosome (APC/C) is a multisubunit E3 ubiquitin
ligase that triggers the degradation of multiple substrates during mitosis.
Cdc20/Fizzy and Cdh1/Fizzy-related activate the APC/C and confer substrate
specificity through complex interactions with both the core APC/C and substrate
proteins. The regulation of Cdc20 and Cdh1 is critical for proper APC/C activity
and occurs in multiple ways: targeted protein degradation, phosphorylation, and
direct binding of inhibitory proteins. During the specialized divisions of
meiosis, the activity of the APC/C must be modified to achieve proper chromosome
segregation. Recent studies show that one way in which APC/C activity is modified
is through the use of meiosis-specific APC/C activators. Furthermore, regulation
of the APC/C during meiosis is carried out by both mitotic regulators of the
APC/C as well as meiosis-specific regulators. Here, we review the regulation of
APC/C activators during mitosis and the role and regulation of the APC/C during
female meiosis.