A silent mutation in codon 10 of exon 1 , detected in ER-negative and ER-positive human breast cancer cell lines , in breast tumors and blood DNA from breast cancer patients , has been recognized as a polymorphic site .
a silent mutation in codon 10 of exon 1 , detected in er-negative and er-positive human breast cancer cell lines , in breast tumors and blood dna from breast cancer patients , has been recognized as a polymorphic site .
O B-other_name I-other_name O B-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O O O O B-tissue I-tissue O B-DNA_family_or_group I-DNA_family_or_group O B-other_name I-other_name O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O