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The human papillomavirus type 11 regulatory region was cloned upstream of a reporter complex and microinjected into nuclei of individual primary human keratinocytes. Genital and laryngeal keratinocytes, normal host cells for this virus, exhibited higher levels of expression than cutaneous keratinocytes. We conclude that a papillomavirus enhancer(s) shows preferences among epithelial cells from different tissue sites.
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Steinberg et al. (1989) studied this question.
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