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. 1989 Feb;63(2):513–522. doi: 10.1128/jvi.63.2.513-522.1989

Generation of a helper cell line for packaging avian leukosis virus-based vectors.

P Savatier 1, C Bagnis 1, P Thoraval 1, D Poncet 1, M Belakebi 1, F Mallet 1, C Legras 1, F L Cosset 1, J L Thomas 1, Y Chebloune 1, et al.
PMCID: PMC247719  PMID: 2536089

Abstract

We constructed an avian leukosis virus-based packaging cell line, pHF-g, containing Rous-associated virus DNA with several alterations to abolish RNA packaging. One of them is a 52-base-pair deletion encompassing the putative encapsidation signal in the leader region. The 3' long terminal repeat was also removed and replaced by the polyadenylation sequence from the herpes simplex virus thymidine kinase gene. When pHF-g cells were transfected by an avian leukosis virus-based vector, they produced replication-defective virus at high titer but they did not release any replication-competent particles. Proviral DNA was shown to be correctly integrated as well as correctly expressed. Viral RNAs were shown to be correctly translated into gag-related polypeptides.

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Selected References

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