Lentivirus is a genus of slow viruses of the Retroviridae family, characterized by a long incubation period.
Lentiviruses can deliver a significant amount of genetic information into the DNA of the host cell and have the unique ability among retroviruses of being able to replicate in non-dividing cells, so they are one of the most efficient methods of a gene delivery vector.
HIV, SIV, and FIV are all examples of lentiviruses.
Five serogroups of lentiviruses are recognized, reflecting the
vertebrate hosts with which they are associated (primates, sheep and
goats, horses, cats, and cattle).
The primate lentiviruses are
distinguished by the use of CD4 protein as receptor and the absence of
dUTPase. Some groups have cross-reactive ''gag'' antigens (e.g., the
ovine, caprine and feline lentiviruses).
Antibodies to ''gag'' antigens
in lions and other large felids indicate the existence of other viruses
related to FIV and the ovine/caprine lentiviruses. Description is on
taxonomic level of genus.
Further Reading
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"Lentivirus"
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