    6.3.4.6 | up |
DUR1,2 and urea transporter DUR3 expression is strongly induced by urea, whereas the other putative transporter genes are induced less than twofold. Urea induction of DUR1,2 is reduced in a transcription factor gat1D mutant, strongly reduced in a transcription factor gln3D mutant, and abolished in a gat1D gln3D double mutant. Expression of DUR1,2 and DUR3 is higher in the GP basal media than in YPD medium. Addition of proline or glutamine at 10 mM in the presence of urea significantly repressed expression relative to urea alone. Urea induction of DUR3 is not dependent upon DUR1,2 expression |
716145 |
