HIV-1 capsids bind and exploit the kinesin-1 adaptor FEZ1 for inward movement to the nucleus

Viacheslav Malikov, Eveline Santos da Silva, Vladimir Jovasevic, Geoffrey Bennett, Daniel A. de Souza Aranha Vieira, Bianca Schulte, Felipe Diaz-Griffero, Derek Walsh and Mojgan H. Naghavi ()
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Viacheslav Malikov: Northwestern University Feinberg School of Medicine
Eveline Santos da Silva: Northwestern University Feinberg School of Medicine
Vladimir Jovasevic: Northwestern University Feinberg School of Medicine
Geoffrey Bennett: Columbia University
Daniel A. de Souza Aranha Vieira: Albert Einstein College of Medicine
Bianca Schulte: Albert Einstein College of Medicine
Felipe Diaz-Griffero: Albert Einstein College of Medicine
Derek Walsh: Northwestern University Feinberg School of Medicine
Mojgan H. Naghavi: Northwestern University Feinberg School of Medicine

Nature Communications, 2015, vol. 6, issue 1, 1-13

Abstract: Abstract Intracellular transport of cargos, including many viruses, involves directed movement on microtubules mediated by motor proteins. Although a number of viruses bind motors of opposing directionality, how they associate with and control these motors to accomplish directed movement remains poorly understood. Here we show that human immunodeficiency virus type 1 (HIV-1) associates with the kinesin-1 adaptor protein, Fasiculation and Elongation Factor zeta 1 (FEZ1). RNAi-mediated FEZ1 depletion blocks early infection, with virus particles exhibiting bi-directional motility but no net movement to the nucleus. Furthermore, both dynein and kinesin-1 motors are required for HIV-1 trafficking to the nucleus. Finally, the ability of exogenously expressed FEZ1 to promote early HIV-1 infection requires binding to kinesin-1. Our findings demonstrate that opposing motors both contribute to early HIV-1 movement and identify the kinesin-1 adaptor, FEZ1 as a capsid-associated host regulator of this process usurped by HIV-1 to accomplish net inward movement towards the nucleus.

Date: 2015
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DOI: 10.1038/ncomms7660

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