tokens: Activation of mature B cells via Ag receptor cross-linking induces transient expression of the transcription factor Egr-1 .
folded_tokens: activation of mature b cells via ag receptor cross-linking induces transient expression of the transcription factor egr-1 .
labels: O O O B-cell_type I-cell_type O B-protein_family_or_group I-protein_family_or_group O O B-other_name I-other_name O O B-protein_family_or_group I-protein_family_or_group B-protein_molecule O