Unlike other class II promoters , the HLA-DR alpha ( DRA ) promoter also contains one element identical to the "octamer" motif of immunoglobulin variable region promoters that is responsible for B cell-specific transcription .
unlike other class ii promoters , the hla-dr alpha ( dra ) promoter also contains one element identical to the "octamer" motif of immunoglobulin variable region promoters that is responsible for b cell-specific transcription .
O O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O B-DNA_domain_or_region I-DNA_domain_or_region I-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 B-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O O O B-other_name I-other_name B-other_name O