Ambient pH signalling in the yeast Yarrowia lipolytica involves YlRim23p/PalC, which interacts with Snf7p/Vps32p, but does not require the long C terminus of YlRim9p/PalI.

Abstract excerpt

A conserved ambient pH signal transduction pathway has been evidenced in both ascomycetous yeasts and filamentous fungi, called the Rim or Pal pathway, respectively. However, closely related PalC orthologues are found only in Yarrowia lipolytica and in filamentous fungi, where the Rim9p/PalI factor has a much longer C-terminal tail than in other yeasts. We show here that, like Aspergillus nidulans palI mutants, a...

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