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Virology. 2000 Mar 1;268(1):41-8.

The HTLV receptor is a widely expressed protein.

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Washington University School of Medicine, St. Louis, Missouri, 63110, USA.


The receptor for human T-cell leukemia virus type 1 (HTLV-1) was found to be expressed on a broad range of cell lines derived from multiple species. Receptor expression was assessed using human immunodeficiency virus type 1 particles, pseudotyped with the HTLV-1 envelope glycoprotein, and expressing luciferase under the control of an SV40 enhancer and promoter. Infection by pseudotyped virus was blocked with neutralizing antibodies to HTLV-1, and infection was dependent on the presence of the cleavage and fusogenic sequences in the envelope protein precursor. Trypsin treatment of susceptible target lymphocytes reduced entry. Entry was partially resistant to ammonium chloride.

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