The molecular mechanisms by which IL-4 induces expression of the IL-4 gene are not known , although the IL-4 -activated transcription factor signal transducer and activator of transcription 6 ( Stat6 ) is required for this effect .
the molecular mechanisms by which il-4 induces expression of the il-4 gene are not known , although the il-4 -activated transcription factor signal transducer and activator of transcription 6 ( stat6 ) is required for this effect .
O O O O O B-protein_molecule O O O O B-protein_molecule O O O O O O O B-protein_molecule O B-protein_family_or_group I-protein_family_or_group O O O O O O O O B-protein_molecule O O O O O O O