| http://purl.uniprot.org/citations/16882008 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/16882008 | http://www.w3.org/2000/01/rdf-schema#comment | "alpha-Synuclein (alpha-Syn), a protein primarily localized in the presynaptic compartment of neurons, is known to regulate dopaminergic neurotransmission by negatively modulating dopamine transporter activity and regulating its trafficking to or away from the cell surface. Given the considerable homology between dopamine transporters and the serotonin (5-HT) transporter (SERT), we examined whether alpha-Syn could similarly regulate SERT function. Increasing expression levels of human alpha-Syn gradually decreased [(3)H]5-HT uptake by human SERT in cotransfected Ltk(-) cells, by diminishing its V(max) without changing its K(m), as compared to cells expressing only SERT. Biotinylation studies to label cell-surface proteins showed that alpha-Syn decreased the levels of SERT present at the plasma membrane. alpha-Syn and SERT were able to coimmunoprecipitate (co-IP), suggesting heteromeric complexes between these two proteins through direct protein-protein interactions. The negative modulation of SERT activity by alpha-Syn occurred through the non-Abeta-amyloid component (NAC) domain of alpha-Syn (aa58-107); DNA constructs encoding this region mimicked the full-length alpha-Syn protein by decreasing [(3)H]5-HT uptake by the transporter. Furthermore, only the constructs encoding the NAC domain of alpha-Syn prevented the co-IPs between full-length alpha-Syn and SERT, in both transfected cells and in rat solubilized lysates isolated from the prefrontal cortex. These studies suggest a novel physiological role for alpha-Syn in regulating SERT activity and may be of relevance in certain mental illnesses and in depression, in which SERT function is believed to be dysregulated."xsd:string |
| http://purl.uniprot.org/citations/16882008 | http://purl.org/dc/terms/identifier | "doi:10.1111/j.1460-9568.2006.04900.x"xsd:string |
| http://purl.uniprot.org/citations/16882008 | http://purl.uniprot.org/core/author | "Sidhu A."xsd:string |
| http://purl.uniprot.org/citations/16882008 | http://purl.uniprot.org/core/author | "Rusnak M."xsd:string |
| http://purl.uniprot.org/citations/16882008 | http://purl.uniprot.org/core/author | "Wersinger C."xsd:string |
| http://purl.uniprot.org/citations/16882008 | http://purl.uniprot.org/core/date | "2006"xsd:gYear |
| http://purl.uniprot.org/citations/16882008 | http://purl.uniprot.org/core/name | "Eur J Neurosci"xsd:string |
| http://purl.uniprot.org/citations/16882008 | http://purl.uniprot.org/core/pages | "55-64"xsd:string |
| http://purl.uniprot.org/citations/16882008 | http://purl.uniprot.org/core/title | "Modulation of the trafficking of the human serotonin transporter by human alpha-synuclein."xsd:string |
| http://purl.uniprot.org/citations/16882008 | http://purl.uniprot.org/core/volume | "24"xsd:string |
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