The burst sequence (BS) region within the promoter is very important for the burst expression of the very late promoters of baculovirus. As the use of repeated BSs in the polyhedrin promoter was reported to increase its activity, in this study, the effect of repeated BSs of the p10 promoter on the activity of the p10 promoter was investigated. The effect of repeated BSs was determined through analysis of virus-induced transient expression and the generation of recombinant viruses. It was observed that the use of repeated BSs downstream of the p10 promoter strongly inhibited the activity of the p10 promoter. However, the insertion of noncoding sequences instead of repeated BSs into the p10 promoter led to a very weak decrease in the activity of the p10 promoter, rather than the strong decrease caused by repeated BSs. These results indicated that the decrease in p10 promoter activity was BS-specific. In addition, it was suggested that although the polyhedrin promoter and the p10 promoter share a number of transcription factors, there are also transcription factors that bind only one of these promoters and not the other.

启动子内的爆发序列（BS）区域对于杆状病毒的非常晚的启动子的爆发表达非常重要。由于在多角体蛋白启动子中使用重复的BS会增加其活性，因此在这项研究中，研究了p10启动子的重复BS对p10启动子活性的影响。通过分析病毒诱导的瞬时表达和重组病毒的产生来确定重复BS的作用。观察到在p10启动子下游使用重复的BS强烈抑制了p10启动子的活性。但是，将非编码序列而不是重复的BS插入p10启动子会导致p10启动子活性的降低非常微弱，而不是由重复的BS引起的强烈降低。这些结果表明，p10启动子活性的降低是BS特异性的。另外，提出了尽管多面体启动子和p10启动子共享许多转录因子，但是也存在仅结合这些启动子之一而不结合其他转录子的转录因子。