During T-cell activation , c-myb expression is induced and much of the increase in expression occurs at the transcriptional level .
during t-cell activation , c-myb expression is induced and much of the increase in expression occurs at the transcriptional level .
O B-other_name I-other_name O B-DNA_domain_or_region O O O O O O O O O O O O O B-other_name I-other_name O