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J. Virol., Jun 1997, 4657-4662, Vol 71, No. 6
Q Li, MK Spriggs, S Kovats, SM Turk, MR Comeau, B Nepom and LM Hutt-Fletcher
Infection of B lymphocytes by Epstein-Barr virus (EBV) requires attachment
of virus via binding of viral glycoprotein gp350 to CD21 on the cell
surface. Penetration of the cell membrane additionally involves a complex
of three glycoproteins, gH, gL, and gp42. Glycoprotein gp42 binds to
HLA-DR. Interference with this interaction with a soluble form of gp42,
with a monoclonal antibody (MAb) to gp42, or with a MAb to HLA-DR inhibited
virus infection. It was not possible to superinfect cells that failed to
express HLA-DR unless expression was restored by transfection or creation
of hybrid cell lines with complementing deficiencies in expression of HLA
class II. HLA class II molecules thus serve as cofactors for infection of
human B cells.
Copyright © 1997, American Society for Microbiology
Epstein-Barr virus uses HLA class II as a cofactor for infection of B lymphocytes
School of Biological Sciences, University of Missouri-Kansas City, 64110, USA.
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