The role of ABC proteins Aus1p and Pdr11p in the uptake of external sterols in yeast: Dehydroergosterol fluorescence study

► Dehydroergosterol is an excellent probe for studies of sterol uptake in yeast. ► ABC proteins Aus1 and Pdr11 are essential for the entry of dietary sterols into plasma membrane. ► Cell wall plays a significant role in the uptake of dietary sterols in yeast.