Interaction of Arl1-GTP with GRIP domains recruits autoantigens golgin-97 and golgin-245/p230 onto the golgi
Interaction of Arl1-GTP with GRIP domains recruits autoantigens golgin-97 and golgin-245/p230 onto the golgi
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DOI:
10.1091/mbc.e03-01-0864
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发表时间:
2003-09-01
影响因子:
3.3
通讯作者:
Hong, WJ
中科院分区:
文献类型:
--
作者:
Lu, L;Hong, WJ
A cellular role and the mechanism of action for small GTPase Arl1 have been defined. Arl1-GTP interacts with the GRIP domains of Golgin-97 and Golgin-245, a process dependent on conserved residues of the GRIP domains that are important for Golgi targeting. The switch 11 region of Arl1 confers the specificity of this interaction. Arl1-GTP mediates Golgi recruitment of Golgin-97 in a switch II-dependent manner, whereas tethering Arl1-GTP onto endosomes can mediate endosomal targeting of Golgin-97. Golgin-97 and Golgin-245 are dissociated from the Golgi when Arl1 is knocked-down by its siRNA. Arl1-GTP thus functions to recruit Golgin-97 and Golgin-245 onto the Golgi via interacting with their GRIP domains.