Title : Differential regulation and substrate preferences in two peptide transporters of Saccharomyces cerevisiae.

Pub. Date : 2007 Oct

PMID : 17693598






7 Functional Relationships(s)
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1 Dal5p has been shown previously to act as an allantoate/ureidosuccinate permease and to play a role in the utilization of certain dipeptides as a nitrogen source in Saccharomyces cerevisiae. Dipeptides allantoate permease Saccharomyces cerevisiae S288C
2 Here, we provide direct evidence that dipeptides are transported by Dal5p, although the affinity of Dal5p for allantoate and ureidosuccinate is higher than that for dipeptides. Dipeptides allantoate permease Saccharomyces cerevisiae S288C
3 Here, we provide direct evidence that dipeptides are transported by Dal5p, although the affinity of Dal5p for allantoate and ureidosuccinate is higher than that for dipeptides. Dipeptides allantoate permease Saccharomyces cerevisiae S288C
4 Here, we provide direct evidence that dipeptides are transported by Dal5p, although the affinity of Dal5p for allantoate and ureidosuccinate is higher than that for dipeptides. Dipeptides allantoate permease Saccharomyces cerevisiae S288C
5 In contrast to the well-studied di/tripeptide transporter Ptr2p, whose substrate specificity is very broad, Dal5p preferred to transport non-N-end rule dipeptides. Dipeptides allantoate permease Saccharomyces cerevisiae S288C
6 Toxic dipeptide and uptake assays indicated that either Ptr2p or Dal5p was predominantly used for dipeptide transport in the common laboratory strains S288c and W303, respectively. Dipeptides allantoate permease Saccharomyces cerevisiae S288C
7 Toxic dipeptide and uptake assays indicated that either Ptr2p or Dal5p was predominantly used for dipeptide transport in the common laboratory strains S288c and W303, respectively. Dipeptides allantoate permease Saccharomyces cerevisiae S288C