tokens: BACKGROUND : Recent data suggest that the regulation of class switching to IgE by cytokines is mediated by STAT transcription factors .
folded_tokens: background : recent data suggest that the regulation of class switching to ige by cytokines is mediated by stat transcription factors .
labels: O O O O O O O O O O O O B-protein_family_or_group O B-protein_family_or_group O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O