tokens: In the four representative mutants investigated , the DNA reiterations all started within a six-base-pair consensus sequence , G ( or C ) CTGTG , located in the second exon of the E1a region ( at nt 1333 , 1367 , or 1419 ) .
folded_tokens: in the four representative mutants investigated , the dna reiterations all started within a six-base-pair consensus sequence , g ( or c ) ctgtg , located in the second exon of the e1a region ( at nt 1333 , 1367 , or 1419 ) .
labels: O O O O O O O O B-DNA_family_or_group I-DNA_family_or_group O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O B-polynucleotide I-polynucleotide I-polynucleotide I-polynucleotide I-polynucleotide I-polynucleotide O O O O O B-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O O