concentrations of dexamethasone that do not induce tyrosine aminotransferase fail to support bt2camp induction , removal of the steroid from the medium leads to a loss of the bt2camp effect , and an htc cell line whose aminotransferase is not steroid-inducible does not respond to the cyclic nucleotide .
C0041487
tyrosine aminotransferase
C0002594
aminotransferase