Döring J, Hurek T.

Nucleic Acids Res. 2017 Apr 20;45(7):3967-3984. doi: 10.1093/nar/gkx073.

Arm-specific cleavage and mutation during reverse transcription of 2΄,5΄-branched RNA by Moloney murine leukemia virus reverse transcriptase.

Despite it is only single-stranded, the 2′ arm can be cleaved when polymerisation is primed on the 3′ arm, but not the converse.