| 摘要 |
<p>A novel alteration of a viral DNA sequence, derived from a human adenovirus type 3 mutant (Ad3) designated Ad3h15, provides a transcriptional control element which can be used to regulate expression of a selected gene in animal and human cells. The Ad3h15 control element blocks transcription of a controlled gene in the presence of the products of the Ad3 E1A gene, and amplifies transcription in the presence of type 5 (Ad5) adenovirus E1A gene products.</p> |
