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Integration site choice of a feline immunodeficiency virus vector

  • Yubin Kang
  • , Christopher J. Moressi
  • , Todd E. Scheetz
  • , Litao Xie
  • , Diane Thi Tran
  • , Thomas L. Casavant
  • , Prashanth Ak
  • , Craig J. Benham
  • , Beverly L. Davidson
  • , Paul B. McCray

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

We mapped 226 unique integration sites in human hepatoma cells following gene transfer with a feline immunodeficiency virus (FIV)-based lentivirus vector. FIV integrated across the entire length of the transcriptional units. Microarray data indicated that FIV integration favored actively transcribed genes. Approximately 21% of FIV integrations within transcriptional units occurred in genes regulated by the LEDGF/p75 transcriptional coactivator. DNA in regions of FIV insertion sites exhibited a "bendable" structure and a pattern of duplex destabilization favoring strand separation. FIV integration preferences are more similar to those of primate lentiviruses and distinct from those of Moloney murine leukemia virus, avian sarcoma leukosis virus, and foamy virus.

Original languageEnglish
Pages (from-to)8820-8823
Number of pages4
JournalJournal of Virology
Volume80
Issue number17
DOIs
StatePublished - Sep 2006
Externally publishedYes

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