期刊
JOURNAL OF VIROLOGY
卷 75, 期 12, 页码 5684-5691出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/JVI.75.12.5684-5691.2001
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A novel member of the nectin family, nectin1 gamma, was molecularly cloned. The cDNA has the same ectodomain as nectin1 alpha and nectin1 beta, the two known transmembrane isoforms that serve as receptors for herpes simplex virus (HSV) entry into human cell lines (nectin1 alpha and nectin1 beta, also railed PRR1-HveC and HIgR, respectively). The 1.4-kb transcript, which originated by alternative splicing, is expressed in human cell lines, and appears to have a narrow distribution in human tissues. The sequence does not have a hydrophobic anchoring region, and the protein is secreted in the culture medium of cells transfected with the cDNA, Nectin1 gamma, purified from culture medium, can compete with membrane-bound nectin1 beta and reduce HSV infectivity, The expression of nectin1 gamma cDNA in cells resistant to HSV infection and lacking HSV receptors enables HSV to enter the cell, which implies that it is present at the cell surface, Thus, nectin1 gamma has the potential both to mediate and to reduce HSV entry into cells.
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