The combination of Pit-1 and Pit-1T have a synergistic stimulatory effect on the thyrotropin beta-subunit promoter but not the growth hormone or prolactin promoters.
Haugen BR, Gordon DF, Nelson AR, Wood WM, Ridgway EC. The combination of Pit-1 and Pit-1T have a synergistic stimulatory effect on the thyrotropin beta-subunit promoter but not the growth hormone or prolactin promoters. Mol Endocrinol. 1994 Nov; 8(11):1574-82.