Virologica Sinica

, Volume 32, Issue 1, pp 44–50

Entry of severe fever with thrombocytopenia syndrome virus

Review

DOI: 10.1007/s12250-016-3858-6

Cite this article as:
Yuan, F. & Zheng, A. Virol. Sin. (2017) 32: 44. doi:10.1007/s12250-016-3858-6
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Abstract

Severe fever with thrombocytopenia syndrome virus (SFTSV) is a globe-shaped virus covered by a dense icosahedral array of glycoproteins Gn/Gc that mediate the attachment of the virus to host cells and the fusion of viral and cellular membranes. Several membrane factors are involved in virus entry, including C-type lectins and nonmuscle myosin heavy chain IIA. The post-fusion crystal structure of the Gc protein suggests that it is a class II membrane fusion protein, similar to the E/E1 protein of flaviviruses and alphaviruses. The virus particles are internalized into host cell endosomes through the clathrin-dependent pathway, where the low pH activates the fusion of the virus with the cell membrane. With information from studies on other bunyaviruses, herein we will review our knowledge of the entry process of SFTSV.

Keywords

severe fever with thrombocytopenia syndrome virus (SFTSV) bunyavirus entry fusion receptor 

Copyright information

© Wuhan Institute of Virology, CAS and Springer Science+Business Media Singapore 2017

Authors and Affiliations

  1. 1.CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of MicrobiologyChinese Academy of SciencesBeijingChina
  2. 2.State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of ZoologyChinese Academy of SciencesBeijingChina