tar bases
1.In addition, two different bases in 0-A EIAV TAR element were mutated to the same asthose of DLA EIAV TAR by PCR-directed mutagenesis. Namely, two adenines (A) locatedwithin 0-A EIAV TAR element and its neighbor region, respectively, were mutated to guanine(G) and thymine (T).
