To characterize the human elk-1 promoter , we mapped the transcriptional start site and isolated elk-1 -specific genomic phage clones that contained extensive upstream and downstream sequences .
to characterize the human elk-1 promoter , we mapped the transcriptional start site and isolated elk-1 -specific genomic phage clones that contained extensive upstream and downstream sequences .
O O O B-DNA_domain_or_region B-DNA_domain_or_region O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region O O O O O O O O O O O O