Moreover , combined mutation of both microB and OCTA sites further reduced enhancer activity in lymphoid cells .
moreover , combined mutation of both microb and octa sites further reduced enhancer activity in lymphoid cells .
O O O O O O B-DNA_domain_or_region O B-DNA_domain_or_region I-DNA_domain_or_region O O B-other_name I-other_name O B-cell_type I-cell_type O