Significant sequence homology of this element was found in the DNA of the DR beta , DP alpha and -beta , and DQ alpha genes , always located downstream of the transcriptional start site .
significant sequence homology of this element was found in the dna of the dr beta , dp alpha and -beta , and dq alpha genes , always located downstream of the transcriptional start site .
O O O O O B-DNA_domain_or_region O O O O O O O O O O O O O O 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 O