4NZG_A   52 HQLTHLSFSKMKALLERShspYYMLNRDRTLKNITETCKACA 93   Moloney murine leukemia virus isolate Shinnick
Q7ZGS3  836 HKTTHLGQESLEKLLVRY---FYILHLSALAKTVTQRCVTCP 874  Human endogenous retrovirus HCML-ARV
P03360  807 HRATHLGESKLTELVRKH---YLICGIYRAARDITTRCVACA 845  Reticuloendotheliosis virus
Q8UM96  794 HRLTHLGTKHLXQLVRTSp--YHVLRLPGVADSVVKHCVPCQ 833  Porcine endogenous retrovirus
Q7ZL01  392 HKLTHLGLKKMKTLLRREeidTYLLGRDQALREVTESCRACA 433  Recombinant M-MuLV/RaLV retrovirus
Q9YK99  853 HQLTHLSFSKTKALLERShspYYMLNRDRTLKNIIETCQACA 894  Murine leukemia virus
Q1KYL9 1386 HRLTHLGYQKMKALLDRGespYYMLNRDKTLQYVADSCTVCA 1427 house mouse
Q5PYI3 1381 HQLTHLSPRKMRALLDREespYHMLYRDKILHQVTESCTACA 1422 Murine leukemia virus
Q61530   57 HQLTHLSYQKMRALLDRKespYYMLNKDKILHEVAESCQACV 98   house mouse
Q85521 1426 HKLTHLSARKMKTLLEREetgFYLPNRDLHLRQVTESCRACA 1467 Feline leukemia virus