PKA modulates iron trafficking in the striatum via small GTPase, Rhes.
PKA modulates iron trafficking in the striatum via small GTPase, Rhes.
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DOI:
10.1016/j.neuroscience.2013.08.043
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发表时间:
2013-12-03
期刊:
影响因子:
3.3
通讯作者:
Kim, S. F.
中科院分区:
文献类型:
--
作者:
Choi, B. -R.;Bang, S.;Chen, Y.;Cheah, J. H.;Kim, S. F.
Rhes, Ras homolog enriched in striatum (Rhes), is a highly conserved small GTP binding protein belonging to the Ras superfamily. Rhes is involved in the dopamine receptor-mediated signaling and behavior though adenylyl cyclase. The striatum-specific GTPase shares a close homology with Dexras1, which regulates iron trafficking in the neurons when activated though the post-translational modification called s-nitrosylation by nitric oxide (NO). We report that Rhes physiologically interacted with PAP7 and participated in iron uptake via DMT1 similar to Dexras1. Interestingly, Rhes is not S-nitrosylated by NO-treatment, however phosphorylated by Protein Kinase A (PKA) at the site of serine-239. Two Rhes mutants - the phosphomimetic form (serine 239 to aspartic acid) and constitutively active form (alanine 173 to valine) - displayed an increase in iron uptake compared to the wild type Rhes. These findings suggest that Rhes may play a crucial role in striatal iron homeostasis.
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DOI:
10.1523/jneurosci.1497-12.2013
发表时间:
2013-02-20
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Chen Y;Khan RS;Cwanger A;Song Y;Steenstra C;Bang S;Cheah JH;Dunaief J;Shindler KS;Snyder SH;Kim SF
通讯作者:
Kim SF
影响因子:
3.7
作者:
Enns LC;Morton JF;Treuting PR;Emond MJ;Wolf NS;Dai DF;McKnight GS;Rabinovitch PS;Ladiges WC
通讯作者:
Ladiges WC
影响因子:
8.2
作者:
Borgkvist, Anders;Fisone, Gilberto
通讯作者:
Fisone, Gilberto
影响因子:
30.8
作者:
Fleming, MD;Trenor, CC;Andrews, NC
通讯作者:
Andrews, NC
影响因子:
5.3
作者:
Faul, Christian;Dhume, Ashwini;Mundel, Peter
通讯作者:
Mundel, Peter