Tailor-Made Ezrin Actin Binding Domain to Probe Its Interaction with Actin In-Vitro
Tailor-Made Ezrin Actin Binding Domain to Probe Its Interaction with Actin In-Vitro
复制标题
定制 Ezrin 肌动蛋白结合域,以在体外探测其与肌动蛋白的相互作用
作者:
Rohini Shrivastava;D. Köster;Sheetal Kalme;S. Mayor;Muniasamy Neerathilingam
Ezrin, a member of the ERM (Ezrin/Radixin/Moesin) protein family, is an Actin-plasma membrane linker protein mediating cellular integrity and function. In-vivo study of such interactions is a complex task due to the presence of a large number of endogenous binding partners for both Ezrin and Actin. Further, C-terminal actin binding capacity of the full length Ezrin is naturally shielded by its N-terminal, and only rendered active in the presence of Phosphatidylinositol bisphosphate (PIP2) or phosphorylation at the C-terminal threonine. Here, we demonstrate a strategy for the design, expression and purification of constructs, combining the Ezrin C-terminal actin binding domain, with functional elements such as fusion tags and fluorescence tags to facilitate purification and fluorescence microscopy based studies. For the first time, internal His tag was employed for purification of Ezrin actin binding domain based on in-silico modeling. The functionality (Ezrin-actin interaction) of these constructs was successfully demonstrated by using Total Internal Reflection Fluorescence Microscopy. This design can be extended to other members of the ERM family as well.
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影响因子:
4
作者:
Bretscher,A;Reczek,D;Berryman,M
通讯作者:
Berryman,M
影响因子:
3.9
作者:
Nye, Jeffrey A.;Groves, Jay T.
通讯作者:
Groves, Jay T.
影响因子:
3.3
作者:
GARY, R;BRETSCHER, A
通讯作者:
BRETSCHER, A
DOI:
10.1242/dev.103.4.675
发表时间:
1988
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
Kellogg,DR;Mitchison,TJ;Alberts,BM
通讯作者:
Alberts,BM