tokens: Immunofluorescence studies on thymic populations of mice carrying transgenes in various combinations of these regulatory DNA elements revealed that thymocytes control the CD4 gene in a different manner than mature peripheral T lymphocytes .
folded_tokens: immunofluorescence studies on thymic populations of mice carrying transgenes in various combinations of these regulatory dna elements revealed that thymocytes control the cd4 gene in a different manner than mature peripheral t lymphocytes .
labels: B-other_name I-other_name O B-cell_type I-cell_type O B-multi_cell O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-cell_type O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-cell_type I-cell_type I-cell_type O