Thus , this Alu repeat ( 90% identical to Alu consensus sequences ) has evolved to become both a positive and negative regulator .
thus , this alu repeat ( 90% identical to alu consensus sequences ) has evolved to become both a positive and negative regulator .
O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-other_name I-other_name I-other_name I-other_name O