A CD28 -associated signaling pathway leading to cytokine gene transcription and T cell proliferation without TCR engagement .
a cd28 -associated signaling pathway leading to cytokine gene transcription and t cell proliferation without tcr engagement .
O B-protein_molecule O O O O O B-DNA_family_or_group I-DNA_family_or_group O O B-other_name I-other_name I-other_name O B-protein_family_or_group O O