Based on these results we estimate a 5-10% difference in virus production of the LTR variants when compared to that of wild-type .
based on these results we estimate a 5-10% difference in virus production of the ltr variants when compared to that of wild-type .
O O O O O O O O O O B-other_name I-other_name O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O B-virus O