>7USF_1|Chains A, B, C, D|Integrase|Mouse mammary tumor virus (11757) ALESAQESHALHHQNAAALRFQFHITREQAREIVKLCPNCPDWGHAPQLGVNPRGLKPRVLWQMDVTHVSEFGKLKYVHVTVDTYSHFTFATARTGEATKDVLQHLAQSFAYMGIPQKIKTDNAPAYVSRSIQEFLARWKISHVTGIPYNPQGQAIVERTHQNIKAQLNKLQKAGKYYTPHHLLAHALFVLNHVNMDNQGHTAAERHWGPISADPKPMVMWKDLLTGSWKGPDVLITAGRGYACVFPQDAESPIWVPDRFIRPFTERKEATPTPGTAEKTPPRDEKDQQESPKNESSPHQREDGLATSAGVDLRSGGGP >7USF_2|Chain E[auth I]|vDNA strand (non-transferred)|Mouse mammary tumor virus (11757) AATGCCGCAGTCGGCCGACCTGAGGGTCAC >7USF_3|Chain F[auth J]|vDNA-tDNA strand (transferred)|Mouse mammary tumor virus (11757) CAGGTCGGCCGACTGCGGCACTCGAGCTACTTCCCTGTTTAG >7USF_4|Chain G[auth K]|tDNA strand|Mouse mammary tumor virus (11757) CTAAACAGGGAAGTAG