Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-49285
Burckhardt, C J; Suomalainen, M; Schoenenberger, P; Boucke, K; Hemmi, S; Greber, U F (2011). Drifting Motions of the Adenovirus Receptor CAR and Immobile Integrins Initiate Virus Uncoating and Membrane Lytic Protein Exposure. Cell Host & Microbe, 10(2):105-117.
|Accepted Version (English)|
Viral particle binding to plasma membrane receptors elicits virus motions, recruits signaling proteins, and triggers membrane bending and fission, finally resulting in endocytic virus uptake. Here we analyze how human adenovirus engages its receptor coxsackievirus adenovirus receptor (CAR) and coreceptor αv integrin to move on the plasma membrane. Virus binding to CAR through fiber knobs gave rise to diffusive motions and actomyosin-2-dependent drifts, while integrin-targeted viruses were spatially more confined. Diffusions, drifts, and confined motions were specifically observed with viral particles that were subsequently internalized. CAR-mediated drifts together with integrin binding supported fiber shedding from adenovirus particles, leading to exposure of the membrane-lytic internal virion protein VI and enhanced viral escape from endosomes. Our results show that adenovirus uncoating is initiated at the plasma membrane by CAR drifting motion and binding to immobile integrins.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute of Molecular Life Sciences|
|DDC:||570 Life sciences; biology|
|Uncontrolled Keywords:||CAR (Coxsackievirus Adenovirus Receptor); plasma membrane; infection; virus entry; trajectory segmentation; single particle tracking; actin; myosin-2; integrin; membrane penetration; movement; diffusion; surfing; confinement; motions|
|Deposited On:||06 Sep 2011 15:43|
|Last Modified:||23 Nov 2012 15:33|
|Free access at:||Publisher DOI. An embargo period may apply.|
|WoS Citation Count:||7|
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