Related Experiment Video
Updated: Nov 14, 2025

Validation of a Mouse Model to Disrupt LINC Complexes in a Cell-specific Manner
Published on: December 10, 2015
The SUN2-nesprin-2 LINC complex and KIF20A function in the Golgi dispersal
Miki Hieda1,2, Taizo Matsumoto3, Mari Isobe4,5
1Graduate School of Health Sciences, Ehime Prefectural University of Health Sciences, Ehime, 791-2101, Japan. mikihieda@gmail.com.
Abstract:
The morphology of the Golgi complex is influenced by the cellular context, which strictly correlates with nuclear functions; however, the mechanism underlying this association remains elusive. The inner nuclear membrane SUN proteins, SUN1 and SUN2, have diverse functions together with the outer nuclear membrane nesprin proteins, which comprise the LINC complex. We found that depletion of SUN1 leads to Golgi complex dispersion with maintenance of ministacks and retained function for vesicle transport through the Golgi complex. In addition, SUN2 associates with microtubule plus-end-directed motor KIF20A, possibly via nesprin-2. KIF20A plays a role in the Golgi dispersion in conjunction with the SUN2-nesprin-2 LINC complex in SUN1-depleted cells, suggesting that SUN1 suppresses the function of the SUN2-nesprin-2 LINC complex under a steady-state condition. Further, SUN1-knockout mice, which show impaired cerebellar development and cerebellar ataxia, presented altered Golgi morphology in Purkinje cells. These findings revealed a regulation of the Golgi organization by the LINC complex.
More Related Videos
Related Concept Videos
Coat Assembly and GTPases
Coat assembly depends on the local availability of phosphatidylinositol phosphates or PIPs and GTP-binding proteins. Adaptor proteins, which link the coat proteins to the membrane, bind to these PIPs and play a crucial role in controlling...
Transport Across the Golgi
Golgi Matrix Proteins
One of the first identified Golgi matrix proteins was GM130, a rod-like protein located in the cis-Golgi. Subsequently, many Golgi...
Nuclear Export
NES are of three types- the canonical 10-residue long leucine-rich signal and other...
ER Retrieval Pathway
The ER uses many checkpoints to prevent the entry of incorrectly folded or a resident protein as cargo onto a transport vesicle. These mechanisms...
The Movement of Organelles and Vesicles

