Abstract Background Over the years. a number of reports have revealed that Ty1 integration occurs in a 1-kb window upstream of Pol III-transcribed genes with an approximate 80-bp periodicity between each integration hotspot and that this targeting requires active Pol III transcription at the site of integration. However. the molecular bases of Ty1 targeting are still not understood. https://www.marketingjeunesse.com/product-category/crayon-eye-color/