tokens: This cis element binds a protein complex referred to as HRF ( heme-responsive factor ) , which is greatly enhanced both in heme-treated FLCs and during monocyte-to-macrophage differentiation .
folded_tokens: this cis element binds a protein complex referred to as hrf ( heme-responsive factor ) , which is greatly enhanced both in heme-treated flcs and during monocyte-to-macrophage differentiation .
labels: O B-DNA_family_or_group I-DNA_family_or_group O O O O O O O B-protein_complex O B-protein_complex I-protein_complex O O O O O O O O O B-cell_line O O B-other_name I-other_name O