Figure 2From: Retroviruses and retroelements in diseases and in gene therapy: 15 years laterExamples of retroelement regulation and its ability to regulate other genes. Protein products are encircled. Syncytin 1 gene corresponding to endogenous retroviral structure is presented in two parts. The left covers the retroviral sequence and the right part depicts retroviral envelope gene (env). For explanation see text.Back to article page