betaretroviruses การใช้

Although OPA resembles human lung cancer, human lung cancer is not known to be caused by betaretroviruses.
Same with all restroviruses, SRV is able to transcribe its own RNA genome into double-stranded DNA by using reverse transcriptase enzyme ( Mg + 2 dependent for betaretroviruses ).
Some use systems similar to Rev / RRE; these include HIV-2 and SIV ( Simian Immunodeficiency Virus ) which use their own Rev-RRE systems, some betaretroviruses, which use a Rem / RmRE system, and all deltaretroviruses which use a Rex / RxRRE systems.