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Host sequences flanking the HIV provirus.

ABSTRACT: A conserved property of retroviral proviruses is the presence of a direct repeat in the host DNA immediately flanking the viral sequence; each virus generates a repeat with a characteristic length. By sequencing the viral/host DNA junctions from five HIV-1 proviral clones, we have confirmed that integration of HIV results in the generation of a five basepair direct repeat. A target sequence in uninfected host DNA was analyzed to establish that the five basepair sequence flanking the provirus was present only once prior to integration. Of the five proviruses examined, two were found to have integrated in known repetitive sequence elements of the human genome; one in a Line-1 element and a second in satellite DNA.

SUBMITTER: Vincent KA

PROVIDER: S-EPMC332403 | biostudies-other | 1990 Oct

REPOSITORIES: biostudies-other

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Host sequences flanking the HIV provirus.

Vincent K A KA York-Higgins D D Quiroga M M Brown P O PO

Nucleic acids research 19901001 20

A conserved property of retroviral proviruses is the presence of a direct repeat in the host DNA immediately flanking the viral sequence; each virus generates a repeat with a characteristic length. By sequencing the viral/host DNA junctions from five HIV-1 proviral clones, we have confirmed that integration of HIV results in the generation of a five basepair direct repeat. A target sequence in uninfected host DNA was analyzed to establish that the five basepair sequence flanking the provirus was ...[more]

PMID: 2235486

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