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    Virology. 2003 Sep 1;313(2):645-52.

    Construction and characterisation of a full-length infectious molecular clone from a fast replicating, X4-tropic HIV-1 CRF02.AG primary isolate.

    Tebit DM, Zekeng L, Kaptué L, Kräusslich HG, Herchenröder O.

    Abteilung Virologie, Universität Heidelberg, Im Neuenheimer Feld 324, D-69120 Heidelberg, Germany.

    Based on our previous analysis of HIV-1 isolates from Cameroon, we constructed a full-length infectious molecular clone from a primary isolate belonging to the CRF02.AG group of recombinant viruses which dominate the HIV-epidemic in West and Central Africa. The virus derived by transfection of the proviral clone pBD6-15 replicated with similar efficiency compared to its parental isolate and used CXCR4 as coreceptor as well. Furthermore, HIV-1 BD6-15 exhibited similar replication properties and virus yield as the reference B-type HIV-1 strain NL4-3. Sequence analysis revealed open reading frames for all structural and accessory genes apart from vpr. Phylogenetic and bootscanning analyses confirmed that BD6-15 clusters with CRF02.AG recombinant strains from West and Central Africa with similar cross-over points as described for the CRF02.AG prototype strain lbNG. Thus, pBD6-15 represents the first non-subtype B infectious molecular clone of a fast replicating, high producer, X4-tropic primary HIV-1 isolate, which had only been briefly passaged in primary cells.

    PMID: 12954230 [PubMed - indexed for MEDLINE]

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