The helper activity for IgE synthesis by the CD27 /CD70 interaction did not contribute to the enhancement of germline epsilon transcripts .
the helper activity for ige synthesis by the cd27 /cd70 interaction did not contribute to the enhancement of germline epsilon transcripts .
O O O O B-protein_family_or_group O O O B-protein_molecule O O O O O O O O O B-RNA_family_or_group I-RNA_family_or_group I-RNA_family_or_group O