Synergistic Control of Transmitter Turnover at Glycinergic Synapses by GlyT1, GlyT2, and ASC-1.
Int J Mol Sci
; 23(5)2022 Feb 25.
Article
em En
| MEDLINE
| ID: mdl-35269698
ABSTRACT
In addition to being involved in protein biosynthesis and metabolism, the amino acid glycine is the most important inhibitory neurotransmitter in caudal regions of the brain. These functions require a tight regulation of glycine concentration not only in the synaptic cleft, but also in various intracellular and extracellular compartments. This is achieved not only by confining the synthesis and degradation of glycine predominantly to the mitochondria, but also by the action of high-affinity large-capacity glycine transporters that mediate the transport of glycine across the membranes of presynaptic terminals or glial cells surrounding the synapses. Although most cells at glycine-dependent synapses express more than one transporter with high affinity for glycine, their synergistic functional interaction is only poorly understood. In this review, we summarize our current knowledge of the two high-affinity transporters for glycine, the sodium-dependent glycine transporters 1 (GlyT1; SLC6A9) and 2 (GlyT2; SLC6A5) and the alanine-serine-cysteine-1 transporter (Asc-1; SLC7A10).
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Base de dados:
MEDLINE
Assunto principal:
Sinapses
/
Proteínas da Membrana Plasmática de Transporte de Glicina
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article