Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/51925

TitleCarboxylic acids plasma membrane transporters in Saccharomyces cerevisiae
Author(s)Casal, Margarida
Queirós, Odília
Talaia, Gabriel
Ribas, David
Paiva, Sandra
KeywordsCarboxylic acids
Plasma membrane transporters
Yeast
Jen1
Ady2
Pdr12
Fps1
Issue date2016
PublisherSpringer
JournalAdvances in Experimental Medicine and Biology
Abstract(s)This chapter covers the functionally characterized plasma membrane carboxylic acids transporters Jenl, Ady2, Fpsl and Pdr12 in the yeast Saccharomyces cerevisiae, addressing also their homologues in other microorganisms, as filamentous fungi and bacteria. Carboxylic acids can either be transported into the cells, to be used as nutrients, or extruded in response to acid stress conditions. The secondary active transporters Jenl and Ady2 can mediate the uptake of the anionic form of these substrates by a 1-1 -symport mechanism. The undissociated form of carboxylic acids is lipid-soluble, crossing the plasma membrane by simple diffusion. Furthermore, acetic acid can also be transported by facilitated diffusion via Fpsl channel. At the cytoplasmic physiological pH, the anionic form of the acid prevails and it can be exported by the Pdr12 pump. This review will highlight the mechanisms involving carboxylic acids transporters, and the way they operate according to the yeast cell response to environmental changes, as carbon source availability, extracellular pH and acid stress conditions.
TypebookPart
URIhttp://hdl.handle.net/1822/51925
ISBN9783319253022
DOI10.1007/978-3-319-25304-6_9
ISSN0065-2598
AccessclosedAccess
Appears in Collections:DBio - Livros e Capítulos de Livros/Books and Books Chapters

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