Development of a yeast-based recombination cloning/system for the analysis of gene products from diverse human immunodeficiency virus type 1 isolates

A recent shift from studies on a few subtype B laboratory human immunodeficiency virus type 1 (HIV-1) clones to analyses of extremely diverse primary HIV-1 isolates from different subtype requires the development of a rapid and generic cloning technique. This report describes the use of gap repair/recombination in yeast to shuttle env, gag, and pol genes from diverse HIV-1 subtypes into a DNA vector that can be amplified in bacteria and can express the gene of interest in mammalian cells. These diverse HIV-1 genes have also been introduced into an infectious clone to produce chimeric viruses that are useful for studies on drug susceptibility, receptor binding and fitness. (C) 2003 Elsevier B.V. All rights reserved.