These data provide direct evidence for the involvement of NF-kappaB /Rel family proteins in late stages of T lymphocyte development , coincident with positive and negative selection .
these data provide direct evidence for the involvement of nf-kappab /rel family proteins in late stages of t lymphocyte development , coincident with positive and negative selection .
O O O O O O O O O B-protein_complex O O O O O O O B-cell_type I-cell_type O O O O O O O O O