One region , centered at -54 , is similar to a nuclear factor E1-binding site , and a region located at position -233 contains a CCAAT motif .
one region , centered at -54 , is similar to a nuclear factor e1-binding site , and a region located at position -233 contains a ccaat motif .
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 O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O