Pullen K A, Champoux J J
Department of Microbiology, School of Medicine, University of Washington, Seattle 98195.
J Virol. 1990 Dec;64(12):6274-7. doi: 10.1128/JVI.64.12.6274-6277.1990.
The start site for human immunodeficiency virus type 1 plus strands within the polypurine tract was mapped by an in vitro analysis to the sequence 5'-ACTG....From this result, it can be inferred that integration of human immunodeficiency virus type 1 must be accompanied by the loss of two base pairs from the polypurine tract-primed long terminal repeat end.