tokens: In vitro precipitation with a glutathione-S-transferase-fusion protein containing the C-terminal transactivation domain of STAT5a showed GH regulated association of ERK1 / 2 with the fusion protein , while this was not seen when serine 780 in STAT5a was changed to alanine .
folded_tokens: in vitro precipitation with a glutathione-s-transferase-fusion protein contain the c-terminal transactivation domain of stat5a show gh regulated association of erk1 / 2 with the fusion protein , while this be not see when serine 780 in stat5a be change to alanine .