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. 2006 Aug 11;313(5788):839-42.
doi: 10.1126/science.1130563.

Requirement for coronin 1 in T lymphocyte trafficking and cellular homeostasis

Niko Föger  1 , Linda Rangell, Dimitry M Danilenko, Andrew C Chan
Affiliations

Requirement for coronin 1 in T lymphocyte trafficking and cellular homeostasis

Niko Föger et al. Science. .

Abstract

The evolutionarily conserved actin-related protein (Arp2/3) complex is a key component of actin filament networks that is dynamically regulated by nucleation-promoting and inhibitory factors. Although much is known about actin assembly, the physiologic functions of inhibitory proteins are unclear. We generated coronin 1-/- mice and found that coronin 1 exerted an inhibitory effect on cellular steady-state F-actin formation via an Arp2/3-dependent mechanism. Whereas coronin 1 was required for chemokine-mediated migration, it was dispensable for T cell antigen receptor functions in T cells. Moreover, actin dynamics, through a mitochondrial pathway, was linked to lymphocyte homeostasis.

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