tokens: The Thy-1 gene promoter resembles a "housekeeping" promoter in that it is located within a methylation-free island , lacks a canonical TATA box , and displays heterogeneity in the 5'-end termini of the mRNA .
folded_tokens: the thy-1 gene promoter resembles a "housekeeping" promoter in that it is located within a methylation-free island , lacks a canonical tata box , and displays heterogeneity in the 5'-end termini of the mrna .
labels: O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-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 O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-RNA_domain_or_region I-RNA_domain_or_region O O B-RNA_domain_or_region O