From: Identification of diverse full-length endogenous betaretroviruses in megabats and microbats
 |  |  |  |  |  |  | Extra | LTR |  |  |
---|---|---|---|---|---|---|---|---|---|---|
 |  | Genome | gag b | pro c | pol | env | ORFsd | Lengthe | PBSf | Additional notes |
 |  | Sizea(nt) |  |  |  |  | ≥ 300 nt | (nt) |  |  |
P. vampyrus | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 | PvERV-βA | 7,705 | Defective | Defective | Defective | Defective | 0 | 407* | Unknown | 100 nt NSR overlapping 5' LTR and beginning of gag gene |
 | PvERV-βB | 9,257 | Defective | Intact | Intact | Defective | 1 | 1265 | Lys 3 | 102 nt NSR within gag gene |
 | PvERV-βC | 7,126 | Defective | Defective | Defective | Intact | 0 | 366* | Lys 3 | Short env gene may indicate in-frame deletion |
 | PvERV-βD | 7,928 | Defective | Defective | Defective | Defective | 1 | 398 | Lys 1,2 | NSRs overlapping 5' LTR and pro-pol junction |
 | PvERV-βE | 7,879 | Intact | Defective | Intact | Intact | 1 | 371* | Lys 3 | A single stop mutation in pro prevents this ERV being intact |
 | PvERV-βF | 7,804 | Intact | Defective | Defective | Defective | 1 | 370 | Lys 3 | 41 nt NSR at extreme 5' end of the 5′ LTR |
 | PvERV-βG | 7,631 | Defective | Intact | Defective | Defective | 0 | 387* | Lys 3 | Appears to contain a deletion that overlaps PPT and 3'LTR |
 | PvERV-βH | 7,843 | Defective | Intact | Defective | Defective | 1 | 361 | Lys 3 |  |
 | PvERV-βI | 7,809 | Defective | Defective | Defective | Defective | 0 | 371* | Lys 3 |  |
 | PvERV-βJ | 8,773 | Defective | Intact | Intact | Intact | 2 | 427* | Lys 1,2 |  |
 | PvERV-βK | 8,611 | Defective | Defective | Intact | Intact | 1 | 425* | Lys 1,2 | 3' LTR appears truncated |
P. alecto | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 | PaERV-βA | >8,103§ | Defective | Defective | Defective | Defective | 2 | Unknown | Unknown | Contains artifact ORF (denoted as ORF* in Figure 1) |
M. lucifugus | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 | MlERV-βA | 9,866 | Defective | Intact | Defective | Defective | 0 | 422* | Lys 1,2 | Large foreign insertion in 5' LTR |
 | MlERV-βB | 8,121 | Unknown | Defective | Intact | Defective | 0 | 480 | Lys 3 | 669 nt NSR within gag gene |
 | MlERV-βC | 8,102 | Intact | Intact | Intact | Intact | 0 | 479* | Lys 3 | Completely intact |
 | MlERV-βD | 9,007 | Defective | Defective | Defective | Intact | 0 | 479* | Lys 3 | Contains short foreign insertions in pro and pol genes |
 | MlERV-βE | 7,890 | Defective | Defective | Defective | Defective | 1 | 440 | Lys†|  |
 | MlERV-βF | 8,235 | Intact | Intact | Defective | Defective | 1 | 470 | Lys 3 | Small ~45nt deletion overlapping pol and env genes |