First is an expansion phase prior to TCR rearrangement , which appears to be correlated with programming of at least some response genes for inducibility .
first is an expansion phase prior to tcr rearrangement , which appears to be correlated with programming of at least some response genes for inducibility .
O O O O O O O B-protein_family_or_group O O O O O O O O O O O O O O O O O O