期刊
JOURNAL OF GENERAL VIROLOGY
卷 91, 期 -, 页码 3010-3015出版社
MICROBIOLOGY SOC
DOI: 10.1099/vir.0.026054-0
关键词
-
资金
- Health Research Council of New Zealand
- University of Otago
The poxvirus anaphase promoting complex regulator (PACR) promotes viral replication by manipulating the anaphase promoting complex/cyclosome (APC/C), a multisubunit ubiquitin ligase complex with essential roles in cell cycle regulation PACR has sequence similarities to APC/C subunit 11 (APC11) and associates with APC/C subunits However, unlike APC11, expression of PACR disrupts APC/C functions Here, we further investigated the interaction of PACR with APC/C Following knockdown of APC1, the subunit linking APC11/APC2 to the rest of APC/C, PACR remained bound to APC2 but not to other, distal, subunits of the complex, suggesting PACR associates with APC/C via APC2 This was supported by the demonstration, in vitro, of a direct interaction between PACR and APC2 Moreover, the presence of PACR interfered with interactions between both APC11 and APC2 Based on these observations we propose that PACR competes with APC11 for the incorporation into APC/C
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