tokens: This study was designed to investigate the functional significance of previously described mutations in the viral long terminal repeat ( LTR ) and to elucidate their contribution to the unique phenotype of SIVsmmPBj14 .
folded_tokens: this study was designed to investigate the functional significance of previously described mutations in the viral long terminal repeat ( ltr ) and to elucidate their contribution to the unique phenotype of sivsmmpbj14 .
labels: O O O O O O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_domain_or_region O O O O O O O O O O O B-virus O