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Vol 58(2024) N 5 p. 896-907; DOI 10.1134/S0026893324700444 Full Text

F.K. Gyoeva1*

GRIP1 is Involved in the Interaction of Vimentin Filaments with Focal Adhesions in Endothelial Cells

1Institute of Protein Research, Russian Academy of Sciences, Pushchino, Moscow oblast, 142290 Russia

*fgyoeva@gmail.com
Received - 2023-10-07; Revised - 2024-03-04; Accepted - 2024-03-12

Vimentin intermediate filaments are dynamic structures that are able to move in cytoplasm owing to activity of the motor proteins, kinesin-1 and cytoplasmic dynein. How exactly motors interact with vimentin filaments remains unclear. In this work, I show that GRIP1 (Glutamate Receptor Interacting Protein 1), known as adapter for kinesin-1 on many cargoes in neurons, might also mediate kinesin-1 interaction with vimentin filaments. GRIP1 associates with vimentin filaments in various cells and co-immunoprecipitates with vimentin from cell lysates. Human endothelial cells knockout by GRIP1 gene lose focal adhesions and change their adhesive properties. Hypothetically, kinesin-1 engages GRIP1 to deliver vimentin filaments to the cell periphery so that they make contact with focal adhesions and stabilize them.

Glutamate Receptor Interacting Protein 1 (GRIP1), kinesin-1, vimentin intermediate filaments, focal adhesions



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