Molecular model of the nucleic acids involved in this complex. The transposase has been removed in order to have an unobstructed view in the nucleic acids in their post-strand exchange state (Holliday junction intermediate): the bridge RNA (ribonucleic acid, yellow-brown), the target DNA-donor DNA (deoxyribonucleic acid, blue), the target DNA (cyan), the donor DNA-target DNA (green) and the donor DNA (violet red).