The acetate uptake transporter family motif “NPAPLGL(M/S)” is essential for substrate uptake

David Ribas, Isabel Soares-Silva, Daniel Vieira, Maria Sousa-Silva, Joana Sá-Pessoa, João Azevedo-Silva, Sandra Cristina Viegas, Cecília Maria Arraiano, George Diallinas, Sandra Paiva, Pedro Soares, Margarida Casal*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Organic acids are recognized as one of the most prevalent compounds in ecosystems, thus the transport and assimilation of these molecules represent an adaptive advantage for organisms. The AceTr family members are associated with the active transport of organic acids, namely acetate and succinate. The phylogenetic analysis shows this family is dispersed in the tree of life. However, in eukaryotes, it is almost limited to microbes, though reaching a prevalence close to 100% in fungi, with an essential role in spore development. Aiming at deepening the knowledge in this family, we studied the acetate permease AceP from Methanosarcina acetivorans, as the first functionally characterized archaeal member of this family. Furthermore, we demonstrate that the yeast Gpr1 from Yarrowia lipolytica is an acetate permease, whereas the Ady2 closest homologue in Saccharomyces cerevisiae, Fun34, has no role in acetate uptake. In this work, we describe the functional role of the AceTr conserved motif NPAPLGL(M/S). We further unveiled the role of the amino acid residues R122 and Q125 of SatP as essential for protein activity.
Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalFungal Genetics and Biology
Publication statusPublished - Jan 2019
Externally publishedYes


  • Acetate transport
  • AceTr family phylogeny
  • Carboxylate transporters
  • Cell membrane
  • Succinate transport


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