Startseite Lebenswissenschaften Flavivirus NS5 associates with host-cell proteins zonula occludens-1 (ZO-1) and regulating synaptic membrane exocytosis-2 (RIMS2) via an internal PDZ binding mechanism
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Flavivirus NS5 associates with host-cell proteins zonula occludens-1 (ZO-1) and regulating synaptic membrane exocytosis-2 (RIMS2) via an internal PDZ binding mechanism

  • Karin Ellencrona , Asim Syed und Magnus Johansson
Veröffentlicht/Copyright: 7. Februar 2009
Biological Chemistry
Aus der Zeitschrift Band 390 Heft 4

Abstract

Dengue virus (DENV) and tick-borne encephalitis virus (TBEV) are flaviviruses, which can cause lethal hemorrhagic fever and encephalitis, respectively. Here, we demonstrate that the TBEV-NS5 and DENV-NS5 proteins use an internal binding mechanism to target human PDZ proteins. TBEV-NS5 has high affinity to regulating synaptic membrane exocytosis-2 (RIMS2) and Scribble, whereas DENV-NS5 binds primarily to the tight junction protein zonula occludens-1 (ZO-1). Targeting of TBEV-NS5 to the plasma membrane is stabilised by ZO-1; however, DENV-NS5 co-localises with ZO-1 in the nucleus. These interactions have potential important roles in the ability of flaviviruses to manipulate cell proliferation, junction permeability and the interferon pathways.


Corresponding author

Received: 2008-11-21
Accepted: 2009-1-28
Published Online: 2009-02-07
Published in Print: 2009-04-01

©2009 by Walter de Gruyter Berlin New York

Heruntergeladen am 6.2.2026 von https://www.degruyterbrill.com/document/doi/10.1515/BC.2009.041/html?lang=de
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