The Cul3-KLHL21 E3 ubiquitin ligase targets aurora B to midzone microtubules in anaphase and is required for cytokinesis.
The Cul3-KLHL21 E3 ubiquitin ligase targets aurora B to midzone microtubules in anaphase and is required for cytokinesis.
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DOI:
10.1083/jcb.200906117
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发表时间:
2009-12-14
期刊:
影响因子:
--
通讯作者:
Peter M
中科院分区:
文献类型:
--
作者:
Maerki S;Olma MH;Staubli T;Steigemann P;Gerlich DW;Quadroni M;Sumara I;Peter M
Selective ubiquitination of Aurora B by different Cul3 adaptors targets it at the correct time to the correct place during mitosis. Cul3 (Cullin3)-based E3 ubiquitin ligases recently emerged as critical regulators of mitosis. In this study, we identify two mammalian BTB (Bric-a-brac–Tramtrack–Broad complex)-Kelch proteins, KLHL21 and KLHL22, that interact with Cul3 and are required for efficient chromosome alignment. Interestingly, KLHL21 but not KLHL22 is necessary for cytokinesis and regulates translocation of the chromosomal passenger complex (CPC) from chromosomes to the spindle midzone in anaphase, similar to the previously described BTB-Kelch proteins KLHL9 and KLHL13. KLHL21 directly binds to Aurora B and mediates ubiquitination of Aurora B in vitro. In contrast to KLHL9 and KLHL13, KLHL21 localizes to midzone microtubules in anaphase and recruits Aurora B and Cul3 to this region. Together, our results suggest that different Cul3 adaptors nonredundantly regulate Aurora B during mitosis, possibly by ubiquitinating different pools of Aurora B at distinct subcellular localizations.
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DOI:
10.1083/jcb.151.4.749
发表时间:
2000-11-13
期刊:
The Journal of cell biology
影响因子:
--
作者:
Sumara I;Vorlaufer E;Gieffers C;Peters BH;Peters JM
通讯作者:
Peters JM
影响因子:
9.2
作者:
Sumara, I;Giménez-Abián, JF;Peters, JM
通讯作者:
Peters, JM
影响因子:
7.8
作者:
Mackay, AM;Ainsztein, AM;Earnshaw, WC
通讯作者:
Earnshaw, WC
影响因子:
21.3
作者:
Angers, S;Thorpe, CJ;Moon, RT
通讯作者:
Moon, RT
影响因子:
64.8
作者:
Ramadan, Kristijan;Bruderer, Roland;Meyer, Hemmo H.
通讯作者:
Meyer, Hemmo H.