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J Cell Biol. 2009 Aug 24;186(4):461-72. doi: 10.1083/jcb.200906068. Epub 2009 Aug 17.

Bringing KASH under the SUN: the many faces of nucleo-cytoskeletal connections.

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  • 1Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, MO 63110, USA.


The nucleus is the most prominent cellular organelle, and its sharp boundaries suggest the compartmentalization of the nucleoplasm from the cytoplasm. However, the recent identification of evolutionarily conserved linkers of the nucleoskeleton to the cytoskeleton (LINC) complexes, a family of macromolecular assemblies that span the double membrane of the nuclear envelope, reveals tight physical connections between the two compartments. Here, we review the structure and evolutionary conservation of SUN and KASH domain-containing proteins, whose interaction within the perinuclear space forms the "nuts and bolts" of LINC complexes. Moreover, we discuss the function of these complexes in nuclear, centrosomal, and chromosome dynamics, and their connection to human disease.

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