Nucleotide sequence analysis of the long terminal repeat (LTR) of avian retroviruses: structural similarities with transposable elements.

The nucleotide sequences of the long terminal repeat (LTR) from six independently derived avian retrovirus recombinant DNA clones have been determined. The LTRs from three clones are approximately 350 bp in length and differ only in minor base insertions or substitutions. Three other clones have smaller LTRs, each with a large deletion which ranged from 89… CONTINUE READING