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Emerging Role of LY6E in Virus–Host Interactions
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Relating GPI-Anchored Ly6 Proteins uPAR and CD59 to Viral Infection

by Jingyou Yu 1,2,†, Vaibhav Murthy 1,2 and Shan-Lu Liu 1,2,3,4,*
Center for Retrovirus Research, The Ohio State University, Columbus, OH 43210, USA
Department of Veterinary Biosciences, The Ohio State University, Columbus, OH 43210, USA
Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210, USA
Viruses and Emerging Pathogens Program, Infectious Diseases Institute, The Ohio State University, Columbus, OH 43210, USA
Author to whom correspondence should be addressed.
Present address: Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA.
Viruses 2019, 11(11), 1060;
Received: 17 October 2019 / Revised: 10 November 2019 / Accepted: 12 November 2019 / Published: 14 November 2019
(This article belongs to the Special Issue Mechanisms of Viral Fusion and Applications in Antivirals)
The Ly6 (lymphocyte antigen-6)/uPAR (urokinase-type plasminogen activator receptor) superfamily protein is a group of molecules that share limited sequence homology but conserved three-fingered structures. Despite diverse cellular functions, such as in regulating host immunity, cell adhesion, and migration, the physiological roles of these factors in vivo remain poorly characterized. Notably, increasing research has focused on the interplays between Ly6/uPAR proteins and viral pathogens, the results of which have provided new insight into viral entry and virus–host interactions. While LY6E (lymphocyte antigen 6 family member E), one key member of the Ly6E/uPAR-family proteins, has been extensively studied, other members have not been well characterized. Here, we summarize current knowledge of Ly6/uPAR proteins related to viral infection, with a focus on uPAR and CD59. Our goal is to provide an up-to-date view of the Ly6/uPAR-family proteins and associated virus–host interaction and viral pathogenesis. View Full-Text
Keywords: Ly6/uPAR; viruses; Ly6E; uPAR/CD87; CD59 Ly6/uPAR; viruses; Ly6E; uPAR/CD87; CD59
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Yu, J.; Murthy, V.; Liu, S.-L. Relating GPI-Anchored Ly6 Proteins uPAR and CD59 to Viral Infection. Viruses 2019, 11, 1060.

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