tokens: To understand the molecular mechanisms controlling CD19 gene expression , we isolated and functionally characterized the CD19 promoter using in vivo footprinting , gel shift assays , and transfection studies .
folded_tokens: to understand the molecular mechanisms controlling cd19 gene expression , we isolated and functionally characterized the cd19 promoter using in vivo footprinting , gel shift assays , and transfection studies .
labels: O O O O O O B-protein_molecule O O O O O O O O O B-protein_molecule O O O B-other_name I-other_name O B-other_name I-other_name I-other_name O O B-other_name I-other_name O