Angela Then

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Phosphoinositide phosphatases play an essential but as yet not well-understood role in lipid-based signal transduction. Members of a subfamily of these enzymes share a specific domain that was first identified in the yeast Sac1 protein [1]. Sac1 homology domains were shown to exhibit 3- and 4-phosphatase activity in vitro [2, 3] and were also found, in(More)
Analysis of microsomal ATP transport in yeast resulted in the identification of Sac1p as an important factor in efficient ATP uptake into the endoplasmic reticulum (ER) lumen. Yet it remained unclear whether Sac1p is the authentic transporter in this reaction. Sac1p shows no homology to other known solute transporters but displays similarity to the(More)
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