Reverse transcriptase domain and Integrase, catalytic core domain and Zinc finger, CCHC-type domain and Ribonuclease H-like domain and Aspartic peptidase domain-containing protein (Reverse transcriptase domain and Integrase,catalytic core domain and Zinc finger, CCHC-type domain and Ribonuclease H-like domain and Aspartic peptidase domain-containing protein)