PIP2 regulates psychostimulant behaviors through its interaction with a membrane protein.
PIP2 regulates psychostimulant behaviors through its interaction with a membrane protein.
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PIP2 通过与膜蛋白相互作用来调节精神兴奋剂行为。
DOI:
10.1038/nchembio.1545
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发表时间:
2014-07
影响因子:
14.8
通讯作者:
Galli, Aurelio
中科院分区:
文献类型:
--
作者:
Hamilton, Peter J.;Belovich, Andrea N.;Khelashvili, George;Saunders, Christine;Erreger, Kevin;Javitch, Jonathan A.;Sitte, Harald H.;Weinstein, Harel;Matthies, Heinrich J. G.;Galli, Aurelio
Phosphatidylinositol (4,5)-bisphosphate (PIP2) regulates the function of ion channels and transporters. Here, we demonstrate that PIP2 directly binds the human dopamine (DA) transporter (hDAT), a key regulator of DA homeostasis and a target of the psychostimulant amphetamine (AMPH). This binding occurs through electrostatic interactions with positively charged hDAT N-terminal residues and is shown to facilitate AMPH-induced, DAT-mediated DA efflux and the psychomotor properties of AMPH. Substitution of these residues with uncharged amino acids reduces hDAT-PIP2 interactions and AMPH-induced DA efflux, without altering the hDAT physiological function of DA uptake. We evaluated, for the first time, the significance of this interaction in vivo using locomotion as a behavioral assay in Drosophila melanogaster. Expression of mutated hDAT with reduced PIP2 interaction in Drosophila DA neurons impairs AMPH-induced locomotion without altering basal locomotion. We present the first demonstration of how PIP2 interactions with a membrane protein can regulate the behaviors of complex organisms.
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DOI:
10.1523/jneurosci.5094-09.2010
发表时间:
2010-04-28
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Bowton E;Saunders C;Erreger K;Sakrikar D;Matthies HJ;Sen N;Jessen T;Colbran RJ;Caron MG;Javitch JA;Blakely RD;Galli A
通讯作者:
Galli A
影响因子:
5.3
作者:
Gabriel, Luke R.;Wu, Sijia;Melikian, Haley E.
通讯作者:
Melikian, Haley E.
影响因子:
5.1
作者:
Robertson SD;Matthies HJ;Galli A
通讯作者:
Galli A
影响因子:
4.8
作者:
Ben-Aissa, Khadija;Patino-Lopez, Genaro;Shaw, Stephen
通讯作者:
Shaw, Stephen
影响因子:
4.8
作者:
Cervinski, MA;Foster, JD;Vaughan, RA
通讯作者:
Vaughan, RA