Syntaxin 1A regulates dopamine transporter activity, phosphorylation and surface expression.
Syntaxin 1A regulates dopamine transporter activity, phosphorylation and surface expression.
复制标题
DOI:
10.1016/j.neuroscience.2010.07.025
复制
发表时间:
2010-10-13
期刊:
影响因子:
3.3
通讯作者:
Vaughan, R. A.
中科院分区:
文献类型:
--
作者:
Cervinski, M. A.;Foster, J. D.;Vaughan, R. A.
We investigated the functional relationship between the SNARE protein syntaxin 1A (syn 1A) and the dopamine transporter (DAT) by treating rat striatal tissue with Botulinum Neurotoxin C (BoNT/C) and co-transfecting syn 1A with DAT in non-neuronal cells, followed by analysis of DAT activity, phosphorylation, and regulation. Treatment of striatal slices with BoNT/C resulted in elevated dopamine (DA) transport Vmax and reduced DAT phosphorylation, while heterologous co-expression of syn 1A led to reduction in DAT surface expression and transport Vmax. Syn 1A was present in DAT immunoprecipitation complexes, supporting a direct or indirect interaction between the proteins. Phorbol ester regulation of DA transport activity was retained in BoNT/C-treated synaptosomes and syn 1A transfected cells, demonstrating that PKC and syn 1A effects occur through independent processes. These findings reveal a novel mechanism for regulation of DAT activity and phosphorylation, and suggest the potential for syn 1A to impact DA neurotransmission through effects on reuptake.
登录
查看更多内容
影响因子:
4.8
作者:
Cervinski, MA;Foster, JD;Vaughan, RA
通讯作者:
Vaughan, RA
影响因子:
3.6
作者:
Gaffaney, JD;Vaughan, RA
通讯作者:
Vaughan, RA
影响因子:
3.9
作者:
Haase, J;Killian, AM;Williams, C
通讯作者:
Williams, C
影响因子:
25
作者:
Deken, SL;Beckman, ML;Quick, MW
通讯作者:
Quick, MW
影响因子:
4.8
作者:
Foster, JD;Pananusorn, B;Vaughan, RA
通讯作者:
Vaughan, RA