Most STR has no function of coding, maybe they have activating matter, recombination site and the function of combining site of DNA topoisomerase.

• 本文对呼吸道合胞病毒感染和腺病毒感染的患儿STR改变进行研究，发现病毒感染后D5S818基因座等位基因频率与正常新生儿对照组有明显差异。