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A retrovirus is a type of virus that inserts a DNA copy of its RNA genome into the DNA of a host cell that it invades, thus changing the genome of that cell. [2] After invading a host cell's cytoplasm, the virus uses its own reverse transcriptase enzyme to produce DNA from its RNA genome, the reverse of the usual pattern, thus retro (backward).
Lentivirus is a genus of retroviruses that cause chronic and deadly diseases characterized by long incubation periods, in humans and other mammalian species. [2] The genus includes the human immunodeficiency virus (HIV), which causes AIDS.
This new retroviral DNA can now be passed on from parent to child. [3] Furthermore, the integrated viral genome has transposable element features, meaning it can replicate or jump in the human ancestor genome. Looking to the genomes of many species related to humans helped determine how long ago this retroviral genome was integrated into the ...
Rarely, retroviral integration may occur in a germline cell that goes on to develop into a viable organism. This organism will carry the inserted retroviral genome as an integral part of its own genome—an "endogenous" retrovirus (ERV) that may be inherited by its offspring as a novel allele. Many ERVs have persisted in the genome of their ...
HIV screening is recommended by the United States Preventive Services ... Antiretroviral treatment among people with HIV whose CD4 count ≤ 550 cells/μL is a ...
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The reason that they are so useful is because their genomes are very simple and easy to use. Retroviruses have the ability to integrate into host cell genomes very well, which allows for the long term expression of their genome. One specific gammaretrovirus that is commonly used as a retroviral vector is the Moloney murine leukemia virus. [7] [9]
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related to: retroviral screening