Structure and allosteric inhibition of excitatory amino acid transporter 1

Juan C. Canul-Tec, Reda Assal, Erica Cirri, Pierre Legrand, Sébastien Brier, Julia Chamot-Rooke and Nicolas Reyes ()
Additional contact information
Juan C. Canul-Tec: Molecular Mechanisms of Membrane Transport Laboratory, Institut Pasteur
Reda Assal: Molecular Mechanisms of Membrane Transport Laboratory, Institut Pasteur
Erica Cirri: Molecular Mechanisms of Membrane Transport Laboratory, Institut Pasteur
Pierre Legrand: Synchrotron SOLEIL, L’Orme des Merisiers
Sébastien Brier: UMR 3528, CNRS, Institut Pasteur
Julia Chamot-Rooke: UMR 3528, CNRS, Institut Pasteur
Nicolas Reyes: Molecular Mechanisms of Membrane Transport Laboratory, Institut Pasteur

Nature, 2017, vol. 544, issue 7651, 446-451

Abstract: Abstract Human members of the solute carrier 1 (SLC1) family of transporters take up excitatory neurotransmitters in the brain and amino acids in peripheral organs. Dysregulation of the function of SLC1 transporters is associated with neurodegenerative disorders and cancer. Here we present crystal structures of a thermostabilized human SLC1 transporter, the excitatory amino acid transporter 1 (EAAT1), with and without allosteric and competitive inhibitors bound. The structures reveal architectural features of the human transporters, such as intra- and extracellular domains that have potential roles in transport function, regulation by lipids and post-translational modifications. The coordination of the allosteric inhibitor in the structures and the change in the transporter dynamics measured by hydrogen–deuterium exchange mass spectrometry reveal a mechanism of inhibition, in which the transporter is locked in the outward-facing states of the transport cycle. Our results provide insights into the molecular mechanisms underlying the function and pharmacology of human SLC1 transporters.

Date: 2017
References: Add references at CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
https://www.nature.com/articles/nature22064 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:544:y:2017:i:7651:d:10.1038_nature22064

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature22064

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().