Truncated forms of glycoprotein D of herpes simplex virus 1 capable of blocking apoptosis and of low-efficiency entry into cells form a heterodimer dependent on the presence of a cysteine located in the shared transmembrane domains.

Abstract excerpt

Earlier studies have shown that herpes simplex virus 1 (HSV-1) virions of mutant lacking glycoprotein D (gD) and made in either complementing (gD(-/+) stocks) or noncomplementing cells (gD(-/-) stocks) induce apoptosis. Subsequent studies have shown that apoptosis induced by gD(-/-) mutant virus stocks can be blocked by in trans delivery of viral genes that encode either intact gD or a mixture of two genes...

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