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XB-ART-44145
Hybridoma (Larchmt) 2011 Oct 01;305:469-74. doi: 10.1089/hyb.2011.0051.
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Monoclonal antibodies against Xenopus greatwall kinase.

Wang L , Fisher LA , Wahl JK , Peng A .


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Mitosis is known to be regulated by protein kinases, including MPF, Plk1, Aurora kinases, and so on, which become active in M-phase and phosphorylate a wide range of substrates to control multiple aspects of mitotic entry, progression, and exit. Mechanistic investigations of these kinases not only provide key insights into cell cycle regulation, but also hold great promise for cancer therapy. Recent studies, largely in Xenopus, characterized a new mitotic kinase named Greatwall (Gwl) that plays essential roles in both mitotic entry and maintenance. In this study, we generated a panel of mouse monoclonal antibodies (MAbs) specific for Xenopus Gwl and characterized these antibodies for their utility in immunoblotting, immunoprecipitation, and immunodepletion in Xenopus egg extracts. Importantly, we generated an MAb that is capable of neutralizing endogenous Gwl. The addition of this antibody into M-phase extracts results in loss of mitotic phosphorylation of Gwl, Plk1, and Cdk1 substrates. These results illustrate a new tool to study loss-of-function of Gwl, and support its essential role in mitosis. Finally, we demonstrated the usefulness of the MAb against human Gwl/MASTL.

???displayArticle.pubmedLink??? 22008075
???displayArticle.pmcLink??? PMC3199536
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Species referenced: Xenopus
Genes referenced: cdk1 mastl plk1
???displayArticle.antibodies??? Mastl Ab2

References [+] :
Burgess, Loss of human Greatwall results in G2 arrest and multiple mitotic defects due to deregulation of the cyclin B-Cdc2/PP2A balance. 2010, Pubmed